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Dr. Maria Letizia RUELLO
Department of Materials, Environmental Sciences and Urban Planning SIMAU, Università Politecnica delle Marche, Ancona 60131, Italy

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0 Environmental Monitoring
0 Indoor Air Quality
0 Raw material
0 Secondary raw material
0 Depollution processes

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Short Biography

Maria Letizia Ruello is a Senior Researcher in Material Science and Technology and Research Manager for the Università Politecnica delle Marche project “Sustainable valorization of by-products of the Critical Raw Materials recycling”. Since 2013, she has been the coordinator for the Università Politecnica delle Marche of the inter-departmental task force on Critical Raw Materials and contact person for the European Innovation Partnership EIP on Raw Material SUBST-EXTREME (Technology Pillar; Priority Area: Substitution of raw materials; Action area n° I.8: Materials under extreme conditions (1) Substitution of CRM in heat-resistant super alloys, (2) Substitution of CRM in hard materials).

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Editorial
Published: 07 April 2021 in Materials
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This editorial reports on a thorough analysis of the abundance and scarcity distribution of chemical elements and the minerals they form in the Earth, Sun, and Universe in connection with their number of neutrons and binding energy per nucleon. On one hand, understanding the elements’ formation and their specific properties related to their electronic and nucleonic structure may lead to understanding whether future solutions to replace certain elements or materials for specific technical applications are realistic. On the other hand, finding solutions to the critical availability of some of these elements is an urgent need. Even the analysis of the availability of scarce minerals from European Union sources leads to the suggestion that a wide-ranging approach is essential. These two fundamental assumptions represent also the logical approach that led the European Commission to ask for a multi-disciplinary effort from the scientific community to tackle the challenge of Critical Raw Materials. This editorial is also the story of one of the first fulcrum around which a wide network of material scientists gathered thanks to the support of the funding organization for research and innovation networks, COST (European Cooperation in Science and Technology).

ACS Style

Mihaela Girtan; Antje Wittenberg; Maria Grilli; Daniel de Oliveira; Chiara Giosuè; Maria Ruello. The Critical Raw Materials Issue between Scarcity, Supply Risk, and Unique Properties. Materials 2021, 14, 1826 .

AMA Style

Mihaela Girtan, Antje Wittenberg, Maria Grilli, Daniel de Oliveira, Chiara Giosuè, Maria Ruello. The Critical Raw Materials Issue between Scarcity, Supply Risk, and Unique Properties. Materials. 2021; 14 (8):1826.

Chicago/Turabian Style

Mihaela Girtan; Antje Wittenberg; Maria Grilli; Daniel de Oliveira; Chiara Giosuè; Maria Ruello. 2021. "The Critical Raw Materials Issue between Scarcity, Supply Risk, and Unique Properties." Materials 14, no. 8: 1826.

Journal article
Published: 14 September 2020 in Marine Environmental Research
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Cigarette butts are the most common form of litter in the world and their environmental impact is related to both persistence and potential toxic effects for chemical composition. The objective of this study was to assess the acute toxicity (LC50-48 h) of human-smoked cigarette butts leachate on 3 cultured genera of benthic foraminifera: the calcareous perforate Rosalina globularis, the calcareous imperforate Quinqueloculina spp., and the agglutinated Textularia agglutinans. The specimens were exposed to 16, 8, 4, 2, and 1 cigarette butts/L concentrations that prove to be acutely toxic to all taxa. Starting from 4 cigarette butts/L, both calcareous genera showed shell decalcification, and death of almost all the individuals, except for the more resistant agglutinated species. These results suggest the potential harmfulness of cigarette butts leachate related to pH reduction and release of toxic substances, in particular nicotine, which leads to physiology alteration and in many cases cellular death.

ACS Style

Francesca Caridi; Anna Sabbatini; Giovanni Birarda; Elisa Costanzi; Giovanni De Giudici; Roberta Galeazzi; Daniela Medas; Giovanna Mobbili; Massimo Ricciutelli; Maria Letizia Ruello; Lisa Vaccari; Alessandra Negri. Cigarette butts, a threat for marine environments: Lessons from benthic foraminifera (Protista). Marine Environmental Research 2020, 162, 105150 .

AMA Style

Francesca Caridi, Anna Sabbatini, Giovanni Birarda, Elisa Costanzi, Giovanni De Giudici, Roberta Galeazzi, Daniela Medas, Giovanna Mobbili, Massimo Ricciutelli, Maria Letizia Ruello, Lisa Vaccari, Alessandra Negri. Cigarette butts, a threat for marine environments: Lessons from benthic foraminifera (Protista). Marine Environmental Research. 2020; 162 ():105150.

Chicago/Turabian Style

Francesca Caridi; Anna Sabbatini; Giovanni Birarda; Elisa Costanzi; Giovanni De Giudici; Roberta Galeazzi; Daniela Medas; Giovanna Mobbili; Massimo Ricciutelli; Maria Letizia Ruello; Lisa Vaccari; Alessandra Negri. 2020. "Cigarette butts, a threat for marine environments: Lessons from benthic foraminifera (Protista)." Marine Environmental Research 162, no. : 105150.

Journal article
Published: 23 June 2020 in Journal of Composites Science
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Electrospinning is known to be a facile and effective technique to fabricate fibers of a controlled diameter-distribution. Among a multitude of polymers available for the purpose, the attention should be addressed to the environmentally compatible ones, with a special focus on sustainability. Polylactic acid (PLA) is a widespread, non-toxic polymer, originating from renewable sources and it can degrade into innocuous products. While the production of fibrous membranes is attractive for airborne particles filtration applications, their impact on the removal of gaseous compounds is generally neglected. In this study, electrospun PLA-based nanofibers were functionalized with cyclodextrins, because of their characteristic hydrophobic central cavity and a hydrophilic outer surface, in order to provide adsorptive properties to the composite. The aim of this work is to investigate a hybrid composite, from renewable sources, for the combined filtration of particulate matter (PM) and adsorption of volatile organic compounds (VOCs). Results show how their inclusion into the polymer strongly affects the fiber morphology, while their attachment onto the fiber surface only positively affects the filtration efficiency.

ACS Style

Silvia Palmieri; Mattia Pierpaoli; Luca Riderelli; Sheng Qi; Maria Letizia Ruello. Preparation and Characterization of an Electrospun PLA-Cyclodextrins Composite for Simultaneous High-Efficiency PM and VOC Removal. Journal of Composites Science 2020, 4, 79 .

AMA Style

Silvia Palmieri, Mattia Pierpaoli, Luca Riderelli, Sheng Qi, Maria Letizia Ruello. Preparation and Characterization of an Electrospun PLA-Cyclodextrins Composite for Simultaneous High-Efficiency PM and VOC Removal. Journal of Composites Science. 2020; 4 (2):79.

Chicago/Turabian Style

Silvia Palmieri; Mattia Pierpaoli; Luca Riderelli; Sheng Qi; Maria Letizia Ruello. 2020. "Preparation and Characterization of an Electrospun PLA-Cyclodextrins Composite for Simultaneous High-Efficiency PM and VOC Removal." Journal of Composites Science 4, no. 2: 79.

Journal article
Published: 06 April 2020 in Manufacturing Review
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This paper reports a study on 8 unconventional hydraulic lime-based mortars able to improve indoor air quality by acting as passive systems. Mortars have been prepared with commercial sand or highly adsorbent materials as aggregates with/without TiO2 as photocatalytic agent, to test also the decomposition of airborne pollutants. Mechanical properties, hygrometric behavior, inhibition of growth of molds and depollution properties have been tested. Despite using porous materials (zeolite and activated carbon), in mortars with unconventional aggregates, compressive strength is higher than in sand-based ones, with a more than double higher water vapor permeability. Zeolite-based mortars have the highest moisture buffering capacity followed by silica gel- and activated carbon-based mortars (1.5–2 times higher than reference, respectively, because of the high porosity of unconventional aggregates). Sand-based mortars show optimum inhibitory capacity against fungal growth. Concerning unconventional aggregates, silica gel mortars have good inhibitory capacity, whereas zeolite and activated carbon give to mortars an optimum substrate for molds. Mortars with unconventional aggregates as silica gel remove more than 80% of tracer pollutant after 2 h of test, whereas zeolite-based mortars remove the 65% of it after 120 min. TiO2 enhances depollution properties as photocatalytic oxidation agent when the mortar is close to saturation.

ACS Style

Chiara Giosuè; Alessandra Mobili; Barbara Citterio; Francesca Biavasco; Maria Letizia Ruello; Francesca Tittarelli. Innovative hydraulic lime-based finishes with unconventional aggregates and TiO2 for the improvement of indoor air quality. Manufacturing Review 2020, 7, 13 .

AMA Style

Chiara Giosuè, Alessandra Mobili, Barbara Citterio, Francesca Biavasco, Maria Letizia Ruello, Francesca Tittarelli. Innovative hydraulic lime-based finishes with unconventional aggregates and TiO2 for the improvement of indoor air quality. Manufacturing Review. 2020; 7 ():13.

Chicago/Turabian Style

Chiara Giosuè; Alessandra Mobili; Barbara Citterio; Francesca Biavasco; Maria Letizia Ruello; Francesca Tittarelli. 2020. "Innovative hydraulic lime-based finishes with unconventional aggregates and TiO2 for the improvement of indoor air quality." Manufacturing Review 7, no. : 13.

Journal article
Published: 28 February 2020 in Manufacturing Review
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Landfill leachate possesses high concentrations of ammonia, micropollutants, and heavy metals, and are characterised for low biodegradability. For this reason, conventional treatment technologies may result ineffective for complete pollutant removal. Electrochemical oxidation allows most of the of recalcitrant pollutants to be oxidised effectively within an easy operational and acceptable retention time, without the need to provide additional chemicals, and without producing waste materials. The mineralisation efficiency and electrode durability depend on the nature of the electrode material. The conventionally adopted anodes can contain critical raw materials (CRMs), and are subject to extreme corrosion conditions. CRM-free electrodes, such as carbon and graphite-based, exhibit a lower efficiency, and are subject to faster deactivation, or, as for lead-dioxide-based electrodes, can constitute a hazard due to the release into the effluent of the coating corrosion products. In this study, the relationship between electrode type, CRM content, and the removal efficiencies of organic compounds and ammonium-nitrogen (N-NH4) was investigated. Material criticality was estimated by the supply risk with economic importance indexes reported in the 2017 EU CRM List. The COD and N-NH4 removal efficiencies were obtained from a literature analysis of 25 publications. The results show that, while single and multi-oxide-coated electrodes may contain low amounts of CRM, but with limited efficiency, boron-doped diamonds (BDD) may constitute the best compromise in terms of a reduced content of CRM and a high mineralisation efficiency.

ACS Style

Mattia Pierpaoli; Michał Rycewicz; Aneta Łuczkiewicz; Sylwia Fudala-Ksiązek; Robert Bogdanowicz; Maria Letizia Ruello. Electrodes criticality: the impact of CRMs in the leachate electrochemical oxidation. Manufacturing Review 2020, 7, 7 .

AMA Style

Mattia Pierpaoli, Michał Rycewicz, Aneta Łuczkiewicz, Sylwia Fudala-Ksiązek, Robert Bogdanowicz, Maria Letizia Ruello. Electrodes criticality: the impact of CRMs in the leachate electrochemical oxidation. Manufacturing Review. 2020; 7 ():7.

Chicago/Turabian Style

Mattia Pierpaoli; Michał Rycewicz; Aneta Łuczkiewicz; Sylwia Fudala-Ksiązek; Robert Bogdanowicz; Maria Letizia Ruello. 2020. "Electrodes criticality: the impact of CRMs in the leachate electrochemical oxidation." Manufacturing Review 7, no. : 7.

Chapter
Published: 17 December 2019 in The First Outstanding 50 Years of “Università Politecnica delle Marche”
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Already from the beginning, 50 years ago, the first nucleus of researchers establishing the research group, was convinced that the construction sector was the best option for the valorization of industrial by-products as “secondary raw materials”. In fact, this sector is probably the largest consumer of resources and the largest waste generator, consequently it has huge environmental impact. On the other hand, construction materials affect the performance of buildings with respect to safety, health, environmental performance and energy efficiency. Manufacturing of construction products using alternative raw materials; recycling to manage construction and demolition waste; durability and environmental compatibility of materials: all these were the different and challenging fields of research that the group has faced in a continuous effort of innovation and cooperation at national and international level. The focus of the group was already perfectly in line with what is now called “Circular Economy”, which at present is considered a revolution in the way of human economic development. We are sure the group thus contributed to this revolution even before the term was in current use. We feel ready for the next 50.

ACS Style

Maria Letizia Ruello; Tiziano Bellezze; Valeria Corinaldesi; Jacopo Donnini; Anna Laura Eusebi; Francesco Fatone; Gabriele Fava; Orlando Favoni; Romeo Fratesi; Chiara Giosué; Giampaolo Giuliani; Mirco Marcellini; Alida Mazzoli; Alessandra Mobili; Gabriella Roventi; Francesca Tittarelli. Sustainability in Construction Materials: From Waste Valorization to Circular Economy. The First Outstanding 50 Years of “Università Politecnica delle Marche” 2019, 279 -296.

AMA Style

Maria Letizia Ruello, Tiziano Bellezze, Valeria Corinaldesi, Jacopo Donnini, Anna Laura Eusebi, Francesco Fatone, Gabriele Fava, Orlando Favoni, Romeo Fratesi, Chiara Giosué, Giampaolo Giuliani, Mirco Marcellini, Alida Mazzoli, Alessandra Mobili, Gabriella Roventi, Francesca Tittarelli. Sustainability in Construction Materials: From Waste Valorization to Circular Economy. The First Outstanding 50 Years of “Università Politecnica delle Marche”. 2019; ():279-296.

Chicago/Turabian Style

Maria Letizia Ruello; Tiziano Bellezze; Valeria Corinaldesi; Jacopo Donnini; Anna Laura Eusebi; Francesco Fatone; Gabriele Fava; Orlando Favoni; Romeo Fratesi; Chiara Giosué; Giampaolo Giuliani; Mirco Marcellini; Alida Mazzoli; Alessandra Mobili; Gabriella Roventi; Francesca Tittarelli. 2019. "Sustainability in Construction Materials: From Waste Valorization to Circular Economy." The First Outstanding 50 Years of “Università Politecnica delle Marche” , no. : 279-296.

Journal article
Published: 25 July 2019 in Environments
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Although photocatalysis is an extraordinary and tremendously explored topic, there is a need to find new ways to encourage the production of composite materials that are economical, efficient and with limited environmental impact. Nanocatalysts may benefit from appropriate support material for many reasons. In this study, TiO2 was deposited on SiO2, so that the silica not only provides the macroscopic structure on which the TiO2 is formed, but it positively affects the photocatalytic activity as well. This is because of the greater specific surface area which favors the adsorption of pollutants near the photocatalyst, the higher amount of surface-adsorbed water and hydroxyl groups and the inhibition of the photogenerated electron-hole recombination. The choice of preparing the Ti-precursor starting from titanium shavings and to directly deposit TiO2 on micrometric-sized silica by a simple hydrothermal method highlights the process sustainability. The results showed that it is possible to produce a photocatalytic composite from secondary materials, exhibiting excellent photocatalytic properties, comparable to the pristine one, and opening the possibility for large-scale production.

ACS Style

Mattia Pierpaoli; Xu Zheng; Vladimir Bondarenko; Gabriele Fava; Maria Letizia Ruello. Paving the Way for A Sustainable and Efficient SiO2/TiO2 Photocatalytic Composite. Environments 2019, 6, 87 .

AMA Style

Mattia Pierpaoli, Xu Zheng, Vladimir Bondarenko, Gabriele Fava, Maria Letizia Ruello. Paving the Way for A Sustainable and Efficient SiO2/TiO2 Photocatalytic Composite. Environments. 2019; 6 (8):87.

Chicago/Turabian Style

Mattia Pierpaoli; Xu Zheng; Vladimir Bondarenko; Gabriele Fava; Maria Letizia Ruello. 2019. "Paving the Way for A Sustainable and Efficient SiO2/TiO2 Photocatalytic Composite." Environments 6, no. 8: 87.

Journal article
Published: 25 July 2019 in Applied Sciences
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End-of-life liquid crystal displays (LCD) represent a possible source of secondary raw materials, mainly glass and an optoelectronic film composed of indium (90%) and tin (10%) oxides. A strong interest for indium, classified as critical raw material, pushed research towards the development of high-efficiency recycling processes. Nevertheless, a deepened study of the technological innovation highlighted that only a small number of treatments included use of whole waste. Furthermore, these processes often need high temperatures, long times, and raw materials that have a significant environmental impact. In this context, this article shows an approach developed in accordance with the “zero waste” principles for whole, end-of-life LCD panel recycling. This process includes preliminary grinding, followed by cross-current acid leaching and indium recovery by zinc cementation, with efficiencies greater than 90%. A recirculation system further increases sustainability of the process. To enhance all waste fractions, glass cullets from leaching are used for concrete production, avoiding their disposal in landfill sites. Considering the achieved efficiencies, combined the simple design suitable for real-scale application (as confirmed by the related patent pending), this process represents an excellent example of implementing circular economy pillars.

ACS Style

Alessia Amato; Alessandro Becci; Paolo Mariani; Federica Carducci; Maria Letizia Ruello; Saveria Monosi; Chiara Giosuè; Francesca Beolchini. End-of-Life Liquid Crystal Display Recovery: Toward a Zero-Waste Approach. Applied Sciences 2019, 9, 2985 .

AMA Style

Alessia Amato, Alessandro Becci, Paolo Mariani, Federica Carducci, Maria Letizia Ruello, Saveria Monosi, Chiara Giosuè, Francesca Beolchini. End-of-Life Liquid Crystal Display Recovery: Toward a Zero-Waste Approach. Applied Sciences. 2019; 9 (15):2985.

Chicago/Turabian Style

Alessia Amato; Alessandro Becci; Paolo Mariani; Federica Carducci; Maria Letizia Ruello; Saveria Monosi; Chiara Giosuè; Francesca Beolchini. 2019. "End-of-Life Liquid Crystal Display Recovery: Toward a Zero-Waste Approach." Applied Sciences 9, no. 15: 2985.

Journal article
Published: 19 March 2019 in Applied Sciences
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Adsorption is a consequence of surface energy distribution, and the existence of electrostatic bonding suggests that the presence of an external electric field may affect adsorbate/adsorbent interactions. Nevertheless, this aspect has been poorly studied in the literature, except under non-thermal plasma or corona discharge conditions. After having demonstrated in our previous work that the adsorption kinetics of gaseous organic compounds can be enhanced by the presence of an external applied electric field, in this study, we focus on the influence of the electric field on adsorbent and adsorptive interactions. By using a commercially available activated carbon cloth, in addition to increasing the adsorbent mass transfer coefficient by virtue of the increasing intensity of the applied electric field, the results suggest that adsorbent morphology is only influenced by the formation of new surface functional groups. Moreover, enhanced adsorption kinetics and capacity may result from the electrohydrodynamic force induced by the movement of charged and neutral particles towards the adsorbent, as confirmed by the reversibility of the process. Such enhancement results in a negligible increase, of about 3%, in adsorption capacity (i.e., from 91 mmol m−2 Pa−1 for only adsorption to 94 mmol m−2 Pa−1 in the presence of the applied electric field), but also in a dramatic doubling of adsorption kinetics (i.e., from 0.09 min−1 for only adsorption to 0.19 min−1 in the presence of the applied electric field). In reality, the application of an electric field to an activated carbon cloth leads to faster adsorption kinetics, without substantially altering its adsorption capacity.

ACS Style

Mattia Pierpaoli; Gabriele Fava; Maria Letizia Ruello. Electroadsorptive Removal of Gaseous Pollutants. Applied Sciences 2019, 9, 1162 .

AMA Style

Mattia Pierpaoli, Gabriele Fava, Maria Letizia Ruello. Electroadsorptive Removal of Gaseous Pollutants. Applied Sciences. 2019; 9 (6):1162.

Chicago/Turabian Style

Mattia Pierpaoli; Gabriele Fava; Maria Letizia Ruello. 2019. "Electroadsorptive Removal of Gaseous Pollutants." Applied Sciences 9, no. 6: 1162.

Journal article
Published: 12 February 2019 in Materials
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Carbon nanowalls (CNWs) have attracted much attention for numerous applications in electrical devices because of their peculiar structural characteristics. However, it is possible to set synthesis parameters to vary the electrical and optical properties of such CNWs. In this paper, we demonstrate the direct growth of highly transparent boron-doped nanowalls (B-CNWs) on optical grade fused quartz. The effect of growth temperature and boron doping on the behavior of boron-doped carbon nanowalls grown on quartz was studied in particular. Temperature and boron inclusion doping level allow for direct tuning of CNW morphology. It is possible to operate with both parameters to obtain a transparent and conductive film; however, boron doping is a preferred factor to maintain the transparency in the visible region, while a higher growth temperature is more effective to improve conductance. Light transmittance and electrical conductivity are mainly influenced by growth temperature and then by boron doping. Tailoring B-CNWs has important implications for potential applications of such electrically conductive transparent electrodes designed for energy conversion and storage devices.

ACS Style

Mattia Pierpaoli; Mateusz Ficek; Michał Rycewicz; Mirosław Sawczak; Jakub Karczewski; Maria Letizia Ruello; Robert Bogdanowicz. Tailoring Electro/Optical Properties of Transparent Boron-Doped Carbon Nanowalls Grown on Quartz. Materials 2019, 12, 547 .

AMA Style

Mattia Pierpaoli, Mateusz Ficek, Michał Rycewicz, Mirosław Sawczak, Jakub Karczewski, Maria Letizia Ruello, Robert Bogdanowicz. Tailoring Electro/Optical Properties of Transparent Boron-Doped Carbon Nanowalls Grown on Quartz. Materials. 2019; 12 (3):547.

Chicago/Turabian Style

Mattia Pierpaoli; Mateusz Ficek; Michał Rycewicz; Mirosław Sawczak; Jakub Karczewski; Maria Letizia Ruello; Robert Bogdanowicz. 2019. "Tailoring Electro/Optical Properties of Transparent Boron-Doped Carbon Nanowalls Grown on Quartz." Materials 12, no. 3: 547.

Journal article
Published: 23 October 2018 in Sustainability
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What are the actual trends in Indoor Air Quality (IAQ), and in which direction is academic interest moving? Much progress has been made in identifying and mitigating indoor pollutants, due to both prevention campaigns (e.g., smoking bans) and greater control of product emissions. However, IAQ is still of interest and the future trends are unknown. In this study, a thorough bibliometric analysis was conducted on the scientific literature available on the Web of Science database with CiteSpace from 1990 until today. It was possible to identify past trends and current advances, both with the aim of introducing the IAQ topic to those encountering it for the first time and to examine the issues that are expected to be pertinent in the future.

ACS Style

Mattia Pierpaoli; Maria Ruello. Indoor Air Quality: A Bibliometric Study. Sustainability 2018, 10, 3830 .

AMA Style

Mattia Pierpaoli, Maria Ruello. Indoor Air Quality: A Bibliometric Study. Sustainability. 2018; 10 (11):3830.

Chicago/Turabian Style

Mattia Pierpaoli; Maria Ruello. 2018. "Indoor Air Quality: A Bibliometric Study." Sustainability 10, no. 11: 3830.

Journal article
Published: 30 June 2018 in Photonics Letters of Poland
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A transparent titanium dioxide and carbon nanowall composite (B-CNW/TiO2) material was fabricated by growing boron-doped carbon nanowalls (B-CNWs) on quartz glass with microwave plasma-enhanced chemical vapor deposition technique, followed by sol-gel deposition using titanium isopropoxide as a TiO2 precursor. Different layer thicknesses were fabricated. Samples were investigated by spectroscopic ellipsometry and UV-VIS spectroscopy. Results shows how the B-CNW thickness affects the optical transmittance, bandgap and electrical conductivity. Full Text: PDF ReferencesWang, H., Quan, X., Yu, H. & Chen, S. Fabrication of a TiO2/carbon nanowall heterojunction and its photocatalytic ability. Carbon N. Y. 46, 1126–1132 (2008). CrossRef Fujishima, A., Zhang, X. & Tryk, D. A. TiO2 photocatalysis and related surface phenomena. Surf. Sci. Rep. 63, 515–582 (2008). CrossRef Pierpaoli, M., Giosuè, C., Ruello, M. L. & Fava, G. Appraisal of a hybrid air cleaning process. Environ. Sci. Pollut. Res. 24, 12638–12645 (2017). CrossRef Sobaszek, M. et al. Diamond Phase (sp3-C) Rich Boron-Doped Carbon Nanowalls (sp2-C): Physicochemical and Electrochemical Properties. J. Phys. Chem. C 121, 20821–20833 (2017). CrossRef Lewkowicz, A. et al. Thickness and structure change of titanium(IV) oxide thin films synthesized by the sol–gel spin coating method. Opt. Mater. (Amst). 36, 1739–1744 (2014). CrossRef Tauc, J. Optical properties and electronic structure of amorphous Ge and Si. Mater. Res. Bull. 3, 37–46 (1968). CrossRef

ACS Style

Mattia Pierpaoli; Aneta Lewkowicz; Mateusz Ficek; Maria Letizia Ruello; Robert Bogdanowicz. Preparation and characterization of TiO2/carbon nanowall composite on a transparent substrate. Photonics Letters of Poland 2018, 10, 54 -56.

AMA Style

Mattia Pierpaoli, Aneta Lewkowicz, Mateusz Ficek, Maria Letizia Ruello, Robert Bogdanowicz. Preparation and characterization of TiO2/carbon nanowall composite on a transparent substrate. Photonics Letters of Poland. 2018; 10 (2):54-56.

Chicago/Turabian Style

Mattia Pierpaoli; Aneta Lewkowicz; Mateusz Ficek; Maria Letizia Ruello; Robert Bogdanowicz. 2018. "Preparation and characterization of TiO2/carbon nanowall composite on a transparent substrate." Photonics Letters of Poland 10, no. 2: 54-56.

Journal article
Published: 11 June 2018 in Methods and Protocols
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The ability of a photocatalyst to degrade a target pollutant is a commonly used method to assess its effectiveness for environmental applications, while ultraviolet-visible (UV-vis) spectroscopy and spectroscopic ellipsometry are conventional techniques for the estimation of a semiconductor band gap. In this work, an array of six light-emitting diodes (LEDs), characterized by different emission peaks between 470–370 nm and absorbed power of 3 W, was implemented into an existing standard testing apparatus for the testing of nitrogen oxides degradation in air. The abatement indexes, obtained under different LEDs irradiation, were firstly compared to the ones determined according the standard and, secondly, correlated with the measured LED emission spectrum, in order to estimate the photocatalyst band gap. Results suggest that this expeditious technique can be easily implemented into existing testing apparatus for the estimation of the band gap and for the appraisal of photocatalytic materials under realistic conditions.

ACS Style

Mattia Pierpaoli; Orlando Favoni; Gabriele Fava; Maria Letizia Ruello. A Novel Method for the Combined Photocatalytic Activity Determination and Bandgap Estimation. Methods and Protocols 2018, 1, 22 .

AMA Style

Mattia Pierpaoli, Orlando Favoni, Gabriele Fava, Maria Letizia Ruello. A Novel Method for the Combined Photocatalytic Activity Determination and Bandgap Estimation. Methods and Protocols. 2018; 1 (2):22.

Chicago/Turabian Style

Mattia Pierpaoli; Orlando Favoni; Gabriele Fava; Maria Letizia Ruello. 2018. "A Novel Method for the Combined Photocatalytic Activity Determination and Bandgap Estimation." Methods and Protocols 1, no. 2: 22.

Journal article
Published: 30 November 2017 in Buildings
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In the current paper, the effect on Indoor Air Quality (IAQ) of two commercial acrylic-based paints were compared: one (Paint A) for indoor applications, the other (Paint B) for indoor/outdoor applications. Both were applied on an inert and on a real mortar substrate. The possibility of Paint B to passively improve IAQ was also investigated when adding highly porous adsorbent fillers, both as addition or as total replacement of a conventional siliceous one. The obtained results show that all paints have high capacity to inhibit biological growth. Paint A is more breathable and it has a higher moisture buffering capacity. Paint B negatively modifies the beneficial properties of the mortar substrate for IAQ. However, the use of unconventional fillers, especially as addition to the formulation, allows the recovery of the same properties of the substrate or even the enhancement of about 20% of the ability to adsorb volatile organic compounds (VOCs) under the current test conditions.

ACS Style

Chiara Giosuè; Alberto Belli; Alessandra Mobili; Barbara Citterio; Francesca Biavasco; Maria Letizia Ruello; Francesca Tittarelli. Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers. Buildings 2017, 7, 110 .

AMA Style

Chiara Giosuè, Alberto Belli, Alessandra Mobili, Barbara Citterio, Francesca Biavasco, Maria Letizia Ruello, Francesca Tittarelli. Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers. Buildings. 2017; 7 (4):110.

Chicago/Turabian Style

Chiara Giosuè; Alberto Belli; Alessandra Mobili; Barbara Citterio; Francesca Biavasco; Maria Letizia Ruello; Francesca Tittarelli. 2017. "Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers." Buildings 7, no. 4: 110.

Conference paper
Published: 01 October 2017 in IOP Conference Series: Materials Science and Engineering
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The "Fornello" viaduct in the Italian Orte-Ravenna highway (E45) is seriously damaged. In this paper, the concrete of the reinforced slab has been widely characterized to evaluate the level of damage and to identify the causes of degradation. No-destructive tests, as those based on ultrasonic waves, as well as chemical, physical and mechanical destructive tests have been carried out on specimens drawn from deteriorated and not deteriorated zones of the R/C bridge decks. Into the slab thickness, the concentration distribution of main anions has been quantified by ion chromatography. Porosimetry tests have been carried out to detect the resistance to freeze-thaw cycles of cement paste. Possible strengthening techniques by FRP applications have been compared.

ACS Style

Francesca Tittarelli; Maria Letizia Ruello; Domenico Capuani; Alessandra Aprile. Damaged Concrete Viaduct in an Italian Highway: Concrete Characterization and Possible Strengthening Techniques by FRP Applications in Comparison. IOP Conference Series: Materials Science and Engineering 2017, 245, 32069 .

AMA Style

Francesca Tittarelli, Maria Letizia Ruello, Domenico Capuani, Alessandra Aprile. Damaged Concrete Viaduct in an Italian Highway: Concrete Characterization and Possible Strengthening Techniques by FRP Applications in Comparison. IOP Conference Series: Materials Science and Engineering. 2017; 245 ():32069.

Chicago/Turabian Style

Francesca Tittarelli; Maria Letizia Ruello; Domenico Capuani; Alessandra Aprile. 2017. "Damaged Concrete Viaduct in an Italian Highway: Concrete Characterization and Possible Strengthening Techniques by FRP Applications in Comparison." IOP Conference Series: Materials Science and Engineering 245, no. : 32069.

Journal article
Published: 22 August 2017 in Materials
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Innovative and multifunctional mortars for renders and panels were manufactured using white photocatalytic and non-photocatalytic cement as binder. Unconventional aggregates, based on lightweight materials with high specific surface and adsorbent properties, were adopted in order to investigate the possible ability to passively improve indoor air quality. The reference mortar was manufactured with traditional calcareous sand. Results show that even if the mechanical properties of mortars with unconventional aggregates generally decrease, they remain acceptable for application as render. The innovative mortars were able to passively improve indoor air quality in terms of transpirability (70% higher), moisture buffering ability (65% higher) and depolluting capacity (up to 75% higher) compared to traditional ones under the current test conditions.

ACS Style

Chiara Giosuè; Mattia Pierpaoli; Alessandra Mobili; Maria Letizia Ruello; Francesca Tittarelli. Influence of Binders and Lightweight Aggregates on the Properties of Cementitious Mortars: From Traditional Requirements to Indoor Air Quality Improvement. Materials 2017, 10, 978 .

AMA Style

Chiara Giosuè, Mattia Pierpaoli, Alessandra Mobili, Maria Letizia Ruello, Francesca Tittarelli. Influence of Binders and Lightweight Aggregates on the Properties of Cementitious Mortars: From Traditional Requirements to Indoor Air Quality Improvement. Materials. 2017; 10 (8):978.

Chicago/Turabian Style

Chiara Giosuè; Mattia Pierpaoli; Alessandra Mobili; Maria Letizia Ruello; Francesca Tittarelli. 2017. "Influence of Binders and Lightweight Aggregates on the Properties of Cementitious Mortars: From Traditional Requirements to Indoor Air Quality Improvement." Materials 10, no. 8: 978.

Journal article
Published: 12 April 2017 in Environments
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Adsorption of pollutants on activated carbon is an effective air pollution control technique. In this study, a strong and non-uniform electric field was applied over an activated carbon fiber cloth. The adsorption kinetic of several organic compounds (Acetone, Acetaldehyde, Benzene, Cyclohexane, Ethanol, Methyl Ethyl Ketone, Toluene, 1-Propanol) on the activated carbon cloth was evaluated in the presence and in the absence of an electric field. Results suggest that its application enhances the adsorptive process. A linear correlation was found between such enhancement and the specific heat of liquefaction of the organic compounds.

ACS Style

Mattia Pierpaoli; Maria Letizia Ruello; Gabriele Fava. Enhanced Adsorption of Organic Compounds over an Activated Carbon Cloth by an External-Applied Electric Field. Environments 2017, 4, 33 .

AMA Style

Mattia Pierpaoli, Maria Letizia Ruello, Gabriele Fava. Enhanced Adsorption of Organic Compounds over an Activated Carbon Cloth by an External-Applied Electric Field. Environments. 2017; 4 (2):33.

Chicago/Turabian Style

Mattia Pierpaoli; Maria Letizia Ruello; Gabriele Fava. 2017. "Enhanced Adsorption of Organic Compounds over an Activated Carbon Cloth by an External-Applied Electric Field." Environments 4, no. 2: 33.

Review
Published: 13 March 2017 in Materials
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In Europe, many technologies with high socio-economic benefits face materials requirements that are often affected by demand-supply disruption. This paper offers an overview of critical raw materials in high value alloys and metal-matrix composites used in critical applications, such as energy, transportation and machinery manufacturing associated with extreme working conditions in terms of temperature, loading, friction, wear and corrosion. The goal is to provide perspectives about the reduction and/or substitution of selected critical raw materials: Co, W, Cr, Nb and Mg.

ACS Style

Maria Luisa Grilli; Tiziano Bellezze; Ernst Gamsjäger; Antonio Rinaldi; Pavel Novak; Sebastian Balos; Radu Robert Piticescu; Maria Letizia Ruello. Solutions for Critical Raw Materials under Extreme Conditions: A Review. Materials 2017, 10, 285 .

AMA Style

Maria Luisa Grilli, Tiziano Bellezze, Ernst Gamsjäger, Antonio Rinaldi, Pavel Novak, Sebastian Balos, Radu Robert Piticescu, Maria Letizia Ruello. Solutions for Critical Raw Materials under Extreme Conditions: A Review. Materials. 2017; 10 (3):285.

Chicago/Turabian Style

Maria Luisa Grilli; Tiziano Bellezze; Ernst Gamsjäger; Antonio Rinaldi; Pavel Novak; Sebastian Balos; Radu Robert Piticescu; Maria Letizia Ruello. 2017. "Solutions for Critical Raw Materials under Extreme Conditions: A Review." Materials 10, no. 3: 285.

Preprint
Published: 25 November 2016
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The present study describes the activities performed to test a new method for measuring the mobility of polycyclic aromatic hydrocarbons (PAHs) in the solid phase of sediments within the context of environmental pollution risk assessment. The method is based on the design of a new configuration (new materials) of the commercial passive sampler Chemcatcher as probe for predicting the bioavailability of persistent organic pollutants in marine sediments (or in water saturated soils).

ACS Style

Emanuela Frapiccini; Evgeniya Prokofyeva; Antonina Bondarenko; Maria Letizia Ruello; Mauro Marini. In-Situ Assessment of PAHs in Contaminated Sea Sediments. 2016, 1 .

AMA Style

Emanuela Frapiccini, Evgeniya Prokofyeva, Antonina Bondarenko, Maria Letizia Ruello, Mauro Marini. In-Situ Assessment of PAHs in Contaminated Sea Sediments. . 2016; ():1.

Chicago/Turabian Style

Emanuela Frapiccini; Evgeniya Prokofyeva; Antonina Bondarenko; Maria Letizia Ruello; Mauro Marini. 2016. "In-Situ Assessment of PAHs in Contaminated Sea Sediments." , no. : 1.

Article
Published: 15 September 2016 in physica status solidi (c)
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According to the WEEE European directives, efforts must be undertaken to reuse or safely dispose liquid crystal displays (LCD) waste, however no practical process was reported yet, although it is possible to recover glass, plastic and precious metals, in particular indium. Indium is one of the elements included by the European Commission in the list of 20 raw materials critical for economic importance and high supply risk (European Commission, https://ec.europa.eu/ growth/tools-databases/eip-raw-materials/en/system/files/ged/79%20report-b_en.pdf [1]). The work aims to valorize LCD scraps after indium recovery with low cost applications both economically and environmentally speaking. Applications have been explored by many researchers, although most focused only on the use of glass powder waste LCD to design concrete. This work deals the use of LCD scraps as it is after cross-current leaching of indium with H2SO4. The experimental work consists of scraps characterization, washing procedure optimization to remove residual acid, mortar production, performance testing, and life cycle assessment (LCA). The results show that LCD scraps exhibit little or no pozzolanic activity. This delay on reactivity can be ascribed to organic residues that prevent the pozzolanic reaction and/or to a lower fineness than that typical of binders or fillers. For this reason the actual investigation focuses to exploit the waste as partial replacement of traditional aggregates. (© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

ACS Style

Maria Letizia Ruello; Alessia Amato; Francesca Beolchini; Saveria Monosi. Valorizing end-of-life LCD scraps after indium recovery. physica status solidi (c) 2016, 13, 1011 -1016.

AMA Style

Maria Letizia Ruello, Alessia Amato, Francesca Beolchini, Saveria Monosi. Valorizing end-of-life LCD scraps after indium recovery. physica status solidi (c). 2016; 13 (10-12):1011-1016.

Chicago/Turabian Style

Maria Letizia Ruello; Alessia Amato; Francesca Beolchini; Saveria Monosi. 2016. "Valorizing end-of-life LCD scraps after indium recovery." physica status solidi (c) 13, no. 10-12: 1011-1016.