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Dr. Alicia Gomis Berenguer
CEMHTI Site Haute Température, CNRS (UPR 3079), 1D Av. de la Recherche Scientifique CS 90055, 45071 - Orléans Cedex 2, France

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0 Adsorption
0 Energy Conversion
0 Photochemistry
0 Advanced oxidation processes
0 Photoelectrochemistry

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Nanoporous carbons
Adsorption
Photochemistry
Energy Conversion

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Journal article
Published: 10 August 2021 in Applied Sciences
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Three activated carbons from lignocellulosic residues and a commercial carbon have been tested for the removal of the herbicide metolachlor and its two degradation transformation products, named ESA and OXA, in aqueous solutions. The kinetics and equilibrium adsorption were studied for the four materials, showing higher adsorption capacities for the three molecules on the carbon materials chemically activated by potassium carbonate, mainly associated with its greater porous development, especially in the range of microporosity. Additionally, the chemical composition of the adsorbents also highlighted their important influence on the ESA and OXA adsorption process. The efficient adsorption of both compounds—even at low initial concentrations—allows a removal efficiency of up to 80% to be reached, revealing promising perspectives for the use of biomass-derived carbon materials for the elimination of not only the herbicide metolachlor, but also its degradation compounds from contaminated wastewater.

ACS Style

Alicia Gomis-Berenguer; Pauline Sidoli; Benoît Cagnon. Adsorption of Metolachlor and Its Transformation Products, ESA and OXA, on Activated Carbons. Applied Sciences 2021, 11, 7342 .

AMA Style

Alicia Gomis-Berenguer, Pauline Sidoli, Benoît Cagnon. Adsorption of Metolachlor and Its Transformation Products, ESA and OXA, on Activated Carbons. Applied Sciences. 2021; 11 (16):7342.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Pauline Sidoli; Benoît Cagnon. 2021. "Adsorption of Metolachlor and Its Transformation Products, ESA and OXA, on Activated Carbons." Applied Sciences 11, no. 16: 7342.

Paper
Published: 05 November 2020 in RSC Advances
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Enantioselective adsorption of metolachlor. The adsorption ofS-enantiomer is favored in certain activated carbons.

ACS Style

Alicia Gomis-Berenguer; Isabelle Laidin; Sophie Renoncial; Benoît Cagnon. Study of enantioselective metolachlor adsorption by activated carbons. RSC Advances 2020, 10, 40321 -40328.

AMA Style

Alicia Gomis-Berenguer, Isabelle Laidin, Sophie Renoncial, Benoît Cagnon. Study of enantioselective metolachlor adsorption by activated carbons. RSC Advances. 2020; 10 (66):40321-40328.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Isabelle Laidin; Sophie Renoncial; Benoît Cagnon. 2020. "Study of enantioselective metolachlor adsorption by activated carbons." RSC Advances 10, no. 66: 40321-40328.

Journal article
Published: 04 January 2020 in Materials
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This work investigates the impact of carbon black (CB) as a porogenic agent and conductive additive in the preparation of electrically conductive nanoporous carbon gels. For this, a series of materials were prepared by the polycondensation of resorcinol/formaldehyde mixtures in the presence of increasing amounts of carbon black. The conductivity of the carbon gel/CB composites increased considerably with the amount of CB, indicating a good dispersion of the additive within the carbon matrix. A percolation threshold of ca. 8 wt.% of conductive additive was found to achieve an adequate “point to point” conductive network. This value is higher than that reported for other additives, owing to the synthetic route chosen, as the additive was incorporated in the reactant’s mixture (pre-synthesis) rather than in the formulation of the electrodes ink (post-synthesis). The CB strongly influenced the development of the porous architecture of the gels that exhibited a multimodal mesopore structure comprised of two distinct pore networks. The microporosity and the primary mesopore structure remained rather unchanged. On the contrary, a secondary network of mesopores was formed in the presence of the additive. Furthermore, the average mesopore size and the volume of the secondary network increased with the amount of CB.

ACS Style

Ana Casanova; Alicia Gomis-Berenguer; Aurélien Canizarès; Patrick Simon; Dolores Calzada; Conchi O. Ania. Carbon Black as Conductive Additive and Structural Director of Porous Carbon Gels. Materials 2020, 13, 217 .

AMA Style

Ana Casanova, Alicia Gomis-Berenguer, Aurélien Canizarès, Patrick Simon, Dolores Calzada, Conchi O. Ania. Carbon Black as Conductive Additive and Structural Director of Porous Carbon Gels. Materials. 2020; 13 (1):217.

Chicago/Turabian Style

Ana Casanova; Alicia Gomis-Berenguer; Aurélien Canizarès; Patrick Simon; Dolores Calzada; Conchi O. Ania. 2020. "Carbon Black as Conductive Additive and Structural Director of Porous Carbon Gels." Materials 13, no. 1: 217.

Journal article
Published: 26 January 2019 in Materials
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We have explored the impact of the incorporation of various amounts of carbons from varied physicochemical features as additives to Bi2WO6 for the photocatalytic degradation of a dye using simulated solar light. Data has revealed that the composition and acidic character of the carbon additive are important parameters in the performance of the Bi2WO6/carbon catalysts. The presence of a carbon additive improved the conversion of the dye, evidencing the occurrence of charge transfer reactions that involve radical mediated reactions. The catalysts prepared with 2 and 5 wt.% of carbon additive outperformed the bare semiconductor, despite the shielding effect of the carbon matrix. The acidic nature of the Bi2WO6/carbon catalysts governs the degradation pathway (due to the preferential adsorption of the dye), that proceeds via the deethylation of the auxochrome groups of the dye at short irradiation times, followed by the cleavage of the chromophore at long irradiation times. Regarding the characteristics of the carbons, the photocatalytic degradation rate is accelerated by carbons of acidic character and high oxygen content, whereas the porosity seems to play a minor role. The presence of the carbon additives also affects the toxicity of the treated solutions, rendering lower values after shorter irradiation periods.

ACS Style

Alicia Gomis-Berenguer; Irma Eliani; Vânia F. Lourenço; Rocio J. Carmona; Leticia F. Velasco; Conchi O. Ania. Insights on the Use of Carbon Additives as Promoters of the Visible-Light Photocatalytic Activity of Bi2WO6. Materials 2019, 12, 385 .

AMA Style

Alicia Gomis-Berenguer, Irma Eliani, Vânia F. Lourenço, Rocio J. Carmona, Leticia F. Velasco, Conchi O. Ania. Insights on the Use of Carbon Additives as Promoters of the Visible-Light Photocatalytic Activity of Bi2WO6. Materials. 2019; 12 (3):385.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Irma Eliani; Vânia F. Lourenço; Rocio J. Carmona; Leticia F. Velasco; Conchi O. Ania. 2019. "Insights on the Use of Carbon Additives as Promoters of the Visible-Light Photocatalytic Activity of Bi2WO6." Materials 12, no. 3: 385.

Book chapter
Published: 03 September 2018 in Carbon-Based Metal-Free Catalysts
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Evidence on the photochemical activity of semiconductor and metal‐free nanoporous carbons upon irradiation in aqueous environments has opened new opportunities for these materials in photocatalysis, beyond their conventional use as inert supports of semiconductors. The aim of this chapter is to review the recent progress on the photocatalytic performance of nanoporous carbons under different illumination conditions, discussing the photochemical quantum yield of carbons of varied nature and physicochemical features toward the photodegradation of pollutants in water. The tight confinement inside the nanopores is important to minimize surface recombination and to increase the lifetime of the excitons photogenerated upon irradiation of the nanoporous carbons. Furthermore, matching of the molecular dimensions of the compound confined in the porosity of the carbon boosts the light conversion toward the visible spectrum. The composition of the nanoporous carbon is also essential for the stabilization of the charge carriers and to promote additional transfer reactions involving chromophoric surface moieties decorating the carbon matrix that are capable of generating vacancies upon irradiation under sunlight. Some progress is yet to be done toward the understanding of the fundamentals of the light/carbon/molecule interactions to design photoactive nanoporous carbons with optimized features for an enhanced photocatalytic response under solar light.

ACS Style

Alicia Gomis-Berenguer; Conchi O. Ania. Metal-Free Nanoporous Carbons in Photocatalysis. Carbon-Based Metal-Free Catalysts 2018, 501 -527.

AMA Style

Alicia Gomis-Berenguer, Conchi O. Ania. Metal-Free Nanoporous Carbons in Photocatalysis. Carbon-Based Metal-Free Catalysts. 2018; ():501-527.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Conchi O. Ania. 2018. "Metal-Free Nanoporous Carbons in Photocatalysis." Carbon-Based Metal-Free Catalysts , no. : 501-527.

Journal article
Published: 10 August 2018 in C
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This work demonstrates the ability of nanoporous carbons to boost the photoelectrochemical activity of hexagonal and monoclinic WO3 towards water oxidation under irradiation. The impact of the carbonaceous phase was strongly dependent on the crystalline structure and morphology of the semiconductor, substantially increasing the activity of WO3 rods with hexagonal phase. The incorporation of increasing amounts of a nanoporous carbon of low functionalization to the WO3 electrodes improved the quantum yield of the reaction and also affected the dynamics of the charge transport, creating a percolation path for the majority carriers. The nanoporous carbon promotes the delocalization of the charge carriers through the graphitic layers. We discuss the incorporation of nanoporous carbons as an interesting strategy for improving the photoelectrochemical performance of nanostructured semiconductor photoelectrodes featuring hindered carrier transport.

ACS Style

Alicia Gomis-Berenguer; Jesús Iniesta; David J. Fermín; Conchi O. Ania. Photoelectrochemical Response of WO3/Nanoporous Carbon Anodes for Photocatalytic Water Oxidation. C 2018, 4, 45 .

AMA Style

Alicia Gomis-Berenguer, Jesús Iniesta, David J. Fermín, Conchi O. Ania. Photoelectrochemical Response of WO3/Nanoporous Carbon Anodes for Photocatalytic Water Oxidation. C. 2018; 4 (3):45.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Jesús Iniesta; David J. Fermín; Conchi O. Ania. 2018. "Photoelectrochemical Response of WO3/Nanoporous Carbon Anodes for Photocatalytic Water Oxidation." C 4, no. 3: 45.

Research article
Published: 08 June 2018 in Energy & Fuels
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The potentialities in the use of bio-chars prepared by steam assisted slow pyrolysis as adsorbents of gases of strategic interest (ca. N2, CO2, CH4) and their mixtures were explored. The bio-chars prepared from Populus nigra wood and cellulose fibers exhibited a narrow microporosity with average pore sizes ranging between 0.55 and 0.6 nm. The micropore volume increased with the pyrolysis temperature, allowing CO2 and CH4 uptakes at room temperature between 1.5-2.5 mmol/g and 0.1-0.5 mmol/g, respectively. These values are in line with those from the literature on biomass derived carbon-based materials exhibiting much higher porous features than those herein reported. As for the separation of CO2/N2 and CO2/CH4 gas mixtures, data showed that the prepared bio-chars exhibited good selectivities for CO2 over both N2 and CH4: between ca. 34 and 119 for a CO2/N2 mixture in typical post-combustion conditions (15/85, v/v) and between 14 and 34 for a CO2/CH4 mixture typical of natural gas upgrading (30/70, v/v).

ACS Style

Valentina Gargiulo; Alicia Gomis-Berenguer; Paola Giudicianni; Conchi O. Ania; Raffaele Ragucci; Michela Alfe'. Assessing the Potential of Biochars Prepared by Steam-Assisted Slow Pyrolysis for CO2 Adsorption and Separation. Energy & Fuels 2018, 32, 10218 -10227.

AMA Style

Valentina Gargiulo, Alicia Gomis-Berenguer, Paola Giudicianni, Conchi O. Ania, Raffaele Ragucci, Michela Alfe'. Assessing the Potential of Biochars Prepared by Steam-Assisted Slow Pyrolysis for CO2 Adsorption and Separation. Energy & Fuels. 2018; 32 (10):10218-10227.

Chicago/Turabian Style

Valentina Gargiulo; Alicia Gomis-Berenguer; Paola Giudicianni; Conchi O. Ania; Raffaele Ragucci; Michela Alfe'. 2018. "Assessing the Potential of Biochars Prepared by Steam-Assisted Slow Pyrolysis for CO2 Adsorption and Separation." Energy & Fuels 32, no. 10: 10218-10227.

Journal article
Published: 01 January 2018 in Journal of Electroanalytical Chemistry
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By using a series of nanoporous carbons with a controlled distribution of pore sizes we have demonstrated the effect of commensurate confinement in the nanopores of the carbon electrodes in the electrochemical and enzymatic activity of immobilized glucose oxidase. The nanoconfinement resulted in more efficient oxidation of glucose through direct electron tunneling of the flavin adenine dinucleotide (FAD) site and the electrode surface. The electrochemical and enzymatic activity was boosted in carbon materials with pores which size matched the dimensions of the enzyme. This is attributed to the conformational changes of the biomolecule in the nanoconfined state, and the proximity of the FAD active site and the carbon electrode pores/walls boosts the electron transfer even in the absence of a mediator. The thermal profiles of the immobilized enzyme provided direct evidence of the conformational changes in the nanoconfined state, and their correlation with the average mesopore size of the carbon material. For the material showing the most adequate porosity, the nanoconfined enzyme retained the electrocatalytic activity towards glucose oxidation -even in the absence of mediator-, and at a broad range of concentrations. This approach is essential to make further clear some critical issues about the immobilization of enzymes on nanoporous carbon electrodes for bioelectrochemical applications.COA thanks the financial support of the European Research Council through a Consolidator Grant (ERC-CoG-648161, PHOROSOL), the Spanish MINECO through an excellence network E3TECH (grant CTQ2015-71650-RDT), and CNRS for a mobility action (poste rouge).Peer reviewe

ACS Style

Conchi Ania; Alicia Gomis-Berenguer; Joseph Dentzer; Cathie Vix-Guterl. Nanoconfinement of glucose oxidase on mesoporous carbon electrodes with tunable pore sizes. Journal of Electroanalytical Chemistry 2018, 808, 372 -379.

AMA Style

Conchi Ania, Alicia Gomis-Berenguer, Joseph Dentzer, Cathie Vix-Guterl. Nanoconfinement of glucose oxidase on mesoporous carbon electrodes with tunable pore sizes. Journal of Electroanalytical Chemistry. 2018; 808 ():372-379.

Chicago/Turabian Style

Conchi Ania; Alicia Gomis-Berenguer; Joseph Dentzer; Cathie Vix-Guterl. 2018. "Nanoconfinement of glucose oxidase on mesoporous carbon electrodes with tunable pore sizes." Journal of Electroanalytical Chemistry 808, no. : 372-379.

Review
Published: 01 March 2017 in Journal of Colloid and Interface Science
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The interest in the use of nanoporous carbon materials in applications related to energy conversion and storage, either as catalysts or additives, has grown over recent decades in various disciplines. Since the early studies reporting the benefits of the use of nanoporous carbons as inert supports of semiconductors and as electron acceptors that enhance the splitting of the photogenerated excitons, many researchers have investigated the key role of carbon matrices coupled to all types of photoactive materials. More recently, our group has demonstrated the ability of semiconductor-free nanoporous carbons to convert the absorbed photons into chemical reactions (i.e. oxidation of pollutants, water splitting, reduction of surface groups) opening new opportunities beyond conventional applications in light energy conversion. The aim of this paper is to review the recent progress on the application of nanoporous carbons in photochemistry using varied illumination conditions (UV, simulated solar light) and covering their role as additives to semiconductors as well as their use as photocatalysts in various fields, describing the photochemical quantum yield of nanoporous carbons for different reactions, and discussing the mechanisms postulated for the carbon/light interactions in confined pore spaces.

ACS Style

Alicia Gomis-Berenguer; Leticia Fernandez Velasco; Inmaculada Velo-Gala; Conchi O. Ania. Photochemistry of nanoporous carbons: Perspectives in energy conversion and environmental remediation. Journal of Colloid and Interface Science 2017, 490, 879 -901.

AMA Style

Alicia Gomis-Berenguer, Leticia Fernandez Velasco, Inmaculada Velo-Gala, Conchi O. Ania. Photochemistry of nanoporous carbons: Perspectives in energy conversion and environmental remediation. Journal of Colloid and Interface Science. 2017; 490 ():879-901.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Leticia Fernandez Velasco; Inmaculada Velo-Gala; Conchi O. Ania. 2017. "Photochemistry of nanoporous carbons: Perspectives in energy conversion and environmental remediation." Journal of Colloid and Interface Science 490, no. : 879-901.

Article
Published: 15 December 2016 in Adsorption
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Carbon xerogels with ultrahigh micro- and mesopore volumes were synthesized from the activation of polymeric resins prepared by sol–gel polycondensation of resorcinol/formaldehyde mixtures in basic medium and subcritical drying. Various activating conditions (e.g., agent, temperature, impregnation conditions) were used and it was found that the textural features of the resulting carbon xerogels are linked to the experimental procedure of the activation reaction to promote the porosity development. The shrinkage and structural collapse of the fragile resins typically obtained upon annealing at high temperatures (during carbonization and/or physical activation) is suppressed when the impregnation of the chemical activating agent is performed under controlled conditions. If the alkaline reagent (either KOH or K2CO3) is put in contact with the resin by wet impregnation (liquid/solid); under such conditions, the intimate contact between both compounds allows the formation of microporosity during the activation along with the enlargement and/or preservation of the mesoporosity of the pristine resin. Furthermore, the chemical activation via wet impregnation allows the combination of high surface areas and the preservation (even higher development) of the mesoporosity created during the synthesis of the resin. The effect of the impregnation method was found highly dependent of the reagent and activation temperature, highlighting the possibility to design micro-mesoporous carbon xerogels at low temperatures with a subtle control of the activation conditions.

ACS Style

Alicia Gomis-Berenguer; Raquel García-González; Ana S. Mestre; Conchi O. Ania. Designing micro- and mesoporous carbon networks by chemical activation of organic resins. Adsorption 2016, 23, 303 -312.

AMA Style

Alicia Gomis-Berenguer, Raquel García-González, Ana S. Mestre, Conchi O. Ania. Designing micro- and mesoporous carbon networks by chemical activation of organic resins. Adsorption. 2016; 23 (2):303-312.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Raquel García-González; Ana S. Mestre; Conchi O. Ania. 2016. "Designing micro- and mesoporous carbon networks by chemical activation of organic resins." Adsorption 23, no. 2: 303-312.

Journal article
Published: 23 November 2016 in Molecules
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The photocorrosion of a nanoporous carbon photoanode, with low surface functionalization and high performance towards the photoelectrochemical oxidation of water using simulated solar light, was investigated. Two different light configurations were used to isolate the effect of the irradiation wavelength (UV and visible light) on the textural and chemical features of the carbon photoanode, and its long-term photocatalytic performance for the oxygen evolution reaction. A complete characterization of the carbon showed that the photocorrosion of carbon anodes of low functionalization follows a different pathway than highly functionalized carbons. The carbon matrix gets slightly oxidized, with the formation of carboxylic and carbonyl-like moieties in the surface of the carbon anode after light exposure. The oxidation of the carbon occurred due to the photogeneration of oxygen reactive species upon the decomposition of water during the irradiation of the photoanodes. Furthermore, the photoinduced surface reactions depend on the nature of the carbon anode and its ability to photogenerate reactive species in solution, rather than on the wavelength of the irradiation source. This surface modification is responsible for the decreased efficiency of the carbon photoanode throughout long illumination periods, due to the effect of the oxidation of the carbon matrix on the charge transfer. In this work, we have corroborated that, in the case of a low functionalization carbon material, the photocorrosion also occurs although it proceeds through a different pathway. The carbon anode gets gradually slightly oxidized due to the photogeneration of O-reactive species, being the incorporation of the O-groups responsible for the decreased performance of the anode upon long-term irradiation due to the effect of the oxidation of the carbon matrix on the electron transfer.

ACS Style

Alicia Gomis-Berenguer; Inmaculada Velo-Gala; Enrique Rodríguez-Castellón; Conchi O. Ania. Surface Modification of a Nanoporous Carbon Photoanode upon Irradiation. Molecules 2016, 21, 1611 .

AMA Style

Alicia Gomis-Berenguer, Inmaculada Velo-Gala, Enrique Rodríguez-Castellón, Conchi O. Ania. Surface Modification of a Nanoporous Carbon Photoanode upon Irradiation. Molecules. 2016; 21 (11):1611.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Inmaculada Velo-Gala; Enrique Rodríguez-Castellón; Conchi O. Ania. 2016. "Surface Modification of a Nanoporous Carbon Photoanode upon Irradiation." Molecules 21, no. 11: 1611.

Journal article
Published: 01 November 2016 in Carbon
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This work provides new insights in the field of applied photoelectro chemistry based on the use of nanoporous carbons as additives to tungsten oxide for the photooxidation of water under potential bias. Using a nanoporous carbon of low surface functionalization as additive to WO3 we have shown the dependence of the photochemical oxidation of water with the wavelength of the irradiation source. Photoelectrochemical responses obtained under monochromatic illumination show a significant increase in the incident photon-to-current conversion efficiency (IPCE) values for electrodes featuring up to 20 wt% carbon additive. Photoelectrochemical transient responses also show a sharp potential dependence, suggesting that the performance of the electrodes is strongly influenced by the carrier mobility and recombination losses. Despite the modest IPCE values of the W/NC electrodes (due to high bulk recombination and poor electron transport properties of the electrodes), our data shows that the incorporation of an optimal amount of nanoporous carbon additive to WO3 can enhance the carrier mobility of the semiconductor, without promoting additional recombination pathways or shadowing of the photoactive oxide.COA thanks the financial support of the European Research Council through a Consolidator Grant (ERC-CoG-648161-PHOROSOL) and the Spanish MINECO (grants CTM2014/56770-R, CTQ2013-48280-C3-3-R). VC and DJF kindly thank the UK Catalysis Hub for resources and support provided via the membership of the UK Catalysis Hub Consortium and funded by EPSRC (grants EP/K014706/1, EP/K014668/1, EP/K014854/1, EP/K014714/1 and EP/M013219/1). AGB thanks her PhD fellowship (BES-2012-060410) and VC thanks the UK National Academy and the Royal Society by the support though the Newton International Fellows program

ACS Style

Alicia Gomis-Berenguer; Veronica Celorrio; Jesus Iniesta; David J. Fermin; Conchi Ania. Nanoporous carbon/WO3 anodes for an enhanced water photooxidation. Carbon 2016, 108, 471 -479.

AMA Style

Alicia Gomis-Berenguer, Veronica Celorrio, Jesus Iniesta, David J. Fermin, Conchi Ania. Nanoporous carbon/WO3 anodes for an enhanced water photooxidation. Carbon. 2016; 108 ():471-479.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Veronica Celorrio; Jesus Iniesta; David J. Fermin; Conchi Ania. 2016. "Nanoporous carbon/WO3 anodes for an enhanced water photooxidation." Carbon 108, no. : 471-479.

Journal article
Published: 01 August 2016 in Carbon
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This work provides new insights in the field of applied photochemistry based on semiconductor-free nanoporous carbons and its application to sunlight energy harvesting. Using carbon materials of increasing average pore size, chemical functionalization to introduce a variety of O- and S-containing functional groups and monochromatic light, we have shown the dependence of the photochemical conversion of phenol in the confinement of the carbons nanopore space with the wavelength of the irradiation source, the dimensions of the pore voids and their surface chemistry. The photochemical conversion of phenol inside the carbons pore space was found to be very sensitive to the nature of the S-containing groups and the confinement state of the adsorbed pollutant.

ACS Style

Alicia Gomis-Berenguer; Mykola Seredych; Jesus Iniesta; J. C. Lima; Teresa J. Bandosz; Conchi O. Ania. Sulfur-mediated photochemical energy harvesting in nanoporous carbons. Carbon 2016, 104, 253 -259.

AMA Style

Alicia Gomis-Berenguer, Mykola Seredych, Jesus Iniesta, J. C. Lima, Teresa J. Bandosz, Conchi O. Ania. Sulfur-mediated photochemical energy harvesting in nanoporous carbons. Carbon. 2016; 104 ():253-259.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Mykola Seredych; Jesus Iniesta; J. C. Lima; Teresa J. Bandosz; Conchi O. Ania. 2016. "Sulfur-mediated photochemical energy harvesting in nanoporous carbons." Carbon 104, no. : 253-259.

Journal article
Published: 01 March 2016 in Carbon
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ACS Style

Alicia Gomis-Berenguer; Jesus Iniesta; Artur Moro; Valter Maurino; Joao C. Lima; Conchi O. Ania. Corrigendum to “Boosting visible light conversion in the confined pore space of nanoporous carbons” [Carbon 96 (2015) 98–104]. Carbon 2016, 98, 187 .

AMA Style

Alicia Gomis-Berenguer, Jesus Iniesta, Artur Moro, Valter Maurino, Joao C. Lima, Conchi O. Ania. Corrigendum to “Boosting visible light conversion in the confined pore space of nanoporous carbons” [Carbon 96 (2015) 98–104]. Carbon. 2016; 98 ():187.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Jesus Iniesta; Artur Moro; Valter Maurino; Joao C. Lima; Conchi O. Ania. 2016. "Corrigendum to “Boosting visible light conversion in the confined pore space of nanoporous carbons” [Carbon 96 (2015) 98–104]." Carbon 98, no. : 187.

Journal article
Published: 01 January 2016 in Carbon
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We showed the effect of commensurate confinement in the pores of nanoporous carbons in the conversion of visible light into a chemical reaction. By using a series of nanoporous carbons with a controlled distribution of pore sizes obtained from a gradual activation under moderate conditions, we have demonstrated the superior conversion of light in the constrained pore space of the carbons compared to values in solution. Besides a more efficient conversion of light, nanopore confinement resulted in a 100–200 nm redshift in the wavelength onset of the photochemical reaction. The visible light activity was boosted in pores which sizes match the dimensions of the confined compound. We attribute this to the enhanced splitting and charge separation of the photogenerated species in the nanopores, due to the proximity of the charge carriers and the adsorbed molecules.COA thanks the financial support of MINECO (CTM2014-56770-R). AGB thanks MINECO for her PhD fellowship (BES-2012-060410)

ACS Style

Alicia Gomis-Berenguer; Jesus Iniesta; Artur Moro; Valter Maurino; J. C. Lima; Conchi Ania. Boosting visible light conversion in the confined pore space of nanoporous carbons. Carbon 2016, 96, 98 -104.

AMA Style

Alicia Gomis-Berenguer, Jesus Iniesta, Artur Moro, Valter Maurino, J. C. Lima, Conchi Ania. Boosting visible light conversion in the confined pore space of nanoporous carbons. Carbon. 2016; 96 ():98-104.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Jesus Iniesta; Artur Moro; Valter Maurino; J. C. Lima; Conchi Ania. 2016. "Boosting visible light conversion in the confined pore space of nanoporous carbons." Carbon 96, no. : 98-104.

Books
Published: 19 November 2015 in Electrochemistry
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Screen-printing electrochemical platforms are strongly emerging in research areas like environmental science, food industry and biomedical sectors, allowing electrochemical sensors and biosensors to be largely introduced in the market. Electrochemical (bio)sensors based on screen-printed devices are now in a relevant position for competing against conventional analytical technologies, justified mainly by the chances of mass and low cost production, low time consuming, in situ and ex situ monitoring, high sensitivity and reproducibility, and high stability. Screen-printed electrochemical (SPE) platforms are mostly based on carbon materials in which the nature, structural and physicochemical properties of the carbonaceous materials have paid significant attention to the performance of the electrochemical (bio)sensors and how biomolecules (enzymes, redox proteins, or antibodies) and carbonaceous structures can be easily assembled for obtaining biological or chemical sensors. In this regard, this chapter deals with a general description of the synthesis and characterizations of carbon materials used in screen-printing electrochemical platforms, depiction of inks formulations and preparation of screen printing electrodes for biosensing applications. A wide variety of carbonaceous electrodes are presented, making emphasis on the physicochemical and electrochemical characterization and their main applications in biosensing fields such as biomedical and clinical sectors, environmental sciences and food chemistry.

ACS Style

Jesús Iniesta; Leticia García-Cruz; Alicia Gomis-Berenguer; Conchi O. Ania. Carbon materials based on screen-printing electrochemical platforms in biosensing applications. Electrochemistry 2015, 133 -169.

AMA Style

Jesús Iniesta, Leticia García-Cruz, Alicia Gomis-Berenguer, Conchi O. Ania. Carbon materials based on screen-printing electrochemical platforms in biosensing applications. Electrochemistry. 2015; ():133-169.

Chicago/Turabian Style

Jesús Iniesta; Leticia García-Cruz; Alicia Gomis-Berenguer; Conchi O. Ania. 2015. "Carbon materials based on screen-printing electrochemical platforms in biosensing applications." Electrochemistry , no. : 133-169.

Journal article
Published: 01 September 2015 in Fuel Processing Technology
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Activated carbons with different textural and chemical surface characteristics were synthesized from waste biomass and low rank coals, and furthermore used as a host matrix for cobalt species, varying the preparation and modification methods. The obtained activated carbons and modified samples were characterized by complex of various physicochemical methods, such as: low temperature physisorption of nitrogen, XRD, EPR, XPS, UV–Vis and TPR with hydrogen. Boehm method was applied for qualitative and quantitative determination of oxygen-containing groups on the carbon surface before and after cobalt deposition. The catalytic properties of cobalt modifications were tested in methanol decomposition. The dominant effect of activated carbon texture over the surface chemistry on the state and catalytic behavior of cobalt species was discussed.Financial support from Bulgarian Academy of Sciences and Bulgarian Ministry of Education (Projects DFNI-Е01/7/2012 and DFNI-E02/2/2014) is gratefully acknowledged.Peer reviewe

ACS Style

Boyko Tsyntsarski; Ivanka Stoycheva; T. Tsoncheva; I. Genova; M. Dimitrov; B. Petrova; Daniela Paneva; Zara Cherkezova-Zheleva; T. Budinova; Hristo Kolev; Alicia Gomis-Berenguer; Conchi Ania; I. Mitov; N. Petrov. Activated carbons from waste biomass and low rank coals as catalyst supports for hydrogen production by methanol decomposition. Fuel Processing Technology 2015, 137, 139 -147.

AMA Style

Boyko Tsyntsarski, Ivanka Stoycheva, T. Tsoncheva, I. Genova, M. Dimitrov, B. Petrova, Daniela Paneva, Zara Cherkezova-Zheleva, T. Budinova, Hristo Kolev, Alicia Gomis-Berenguer, Conchi Ania, I. Mitov, N. Petrov. Activated carbons from waste biomass and low rank coals as catalyst supports for hydrogen production by methanol decomposition. Fuel Processing Technology. 2015; 137 ():139-147.

Chicago/Turabian Style

Boyko Tsyntsarski; Ivanka Stoycheva; T. Tsoncheva; I. Genova; M. Dimitrov; B. Petrova; Daniela Paneva; Zara Cherkezova-Zheleva; T. Budinova; Hristo Kolev; Alicia Gomis-Berenguer; Conchi Ania; I. Mitov; N. Petrov. 2015. "Activated carbons from waste biomass and low rank coals as catalyst supports for hydrogen production by methanol decomposition." Fuel Processing Technology 137, no. : 139-147.

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Published: 21 August 2015 in ChemCatChem
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We showed the effect of surface oxidation on the conversion of light into a chemical reaction in the confined pore space of nanoporous carbons. The photoactivity of carbons is caused by the combination of high porosity and the presence of photoreactive sites that favor the splitting of the exciton inside the pores, which boosts its efficient use in chemical reactions. The incorporation of O‐containing groups in the carbon matrix decreased the photoconversion inside the pores, although values were higher than those attained in solution. This is attributed to the lower stabilization of the exciton through the delocalization within the conjugated sp2 network of the basal planes because of the electron‐withdrawing effect of the O‐containing groups. The photochemical conversion of light inside the pores is very sensitive to the acidic/basic nature of the O‐containing groups of the carbon matrix, and can be enhanced by balancing the surface composition, porosity, and electronic mobility.

ACS Style

Leticia Fernandez Velasco; Alicia Gomis‐Berenguer; Joao C. Lima; Conchi O. Ania. Tuning the Surface Chemistry of Nanoporous Carbons for Enhanced Nanoconfined Photochemical Activity. ChemCatChem 2015, 7, 3012 -3019.

AMA Style

Leticia Fernandez Velasco, Alicia Gomis‐Berenguer, Joao C. Lima, Conchi O. Ania. Tuning the Surface Chemistry of Nanoporous Carbons for Enhanced Nanoconfined Photochemical Activity. ChemCatChem. 2015; 7 (18):3012-3019.

Chicago/Turabian Style

Leticia Fernandez Velasco; Alicia Gomis‐Berenguer; Joao C. Lima; Conchi O. Ania. 2015. "Tuning the Surface Chemistry of Nanoporous Carbons for Enhanced Nanoconfined Photochemical Activity." ChemCatChem 7, no. 18: 3012-3019.

Journal article
Published: 01 July 2015 in Journal of Colloid and Interface Science
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This work investigates the competitive adsorption under dynamic and equilibrium conditions of ibuprofen (IBU) and amoxicillin (AMX), two widely consumed pharmaceuticals, on nanoporous carbons of different characteristics. Batch adsorption experiments of pure components in water and their binary mixtures were carried out to measure both adsorption equilibrium and kinetics, and dynamic tests were performed to validate the simultaneous removal of the mixtures in breakthrough experiments. The equilibrium adsorption capacities evaluated from pure component solutions were higher than those measured in dynamic conditions, and were found to depend on the porous features of the adsorbent and the nature of the specific/dispersive interactions that are controlled by the solution pH, density of surface change on the carbon and ionization of the pollutant. A marked roll-up effect was observed for AMX retention on the hydrophobic carbons, not seen for the functionalized adsorbent likely due to the lower affinity of amoxicillin towards the carbon adsorbent. Dynamic adsorption of binary mixtures from wastewater of high salinity and alkalinity showed a slight increase in IBU uptake and a reduced adsorption of AMX, demonstrating the feasibility of the simultaneous removal of both compounds from complex water matrices.The authors thank the financial support of MINECO (CTM2011/23378) and PCTI Asturias (Fondos Feder 2007-2013, grant PC10-002). HM, RJC and AGB thank the financial support of Univ. Gabes (mobility grant), PCTI Asturias (PhD Severo Ochoa fellowship) and MINECO (PhD fellowship BES-2012-060410), respectively. COA thanks C. Diaz for the help in the wastewater analysisPeer reviewe

ACS Style

Hayet Mansouri; Rocio J. Carmona; Alicia Gomis-Berenguer; Souad Souissi-Najar; Abdelmottaleb Ouederni; Conchi O. Ania. Competitive adsorption of ibuprofen and amoxicillin mixtures from aqueous solution on activated carbons. Journal of Colloid and Interface Science 2015, 449, 252 -260.

AMA Style

Hayet Mansouri, Rocio J. Carmona, Alicia Gomis-Berenguer, Souad Souissi-Najar, Abdelmottaleb Ouederni, Conchi O. Ania. Competitive adsorption of ibuprofen and amoxicillin mixtures from aqueous solution on activated carbons. Journal of Colloid and Interface Science. 2015; 449 ():252-260.

Chicago/Turabian Style

Hayet Mansouri; Rocio J. Carmona; Alicia Gomis-Berenguer; Souad Souissi-Najar; Abdelmottaleb Ouederni; Conchi O. Ania. 2015. "Competitive adsorption of ibuprofen and amoxicillin mixtures from aqueous solution on activated carbons." Journal of Colloid and Interface Science 449, no. : 252-260.

Journal article
Published: 15 March 2013 in Journal of Physical Organic Chemistry
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Arylated anthraquinone derivatives of different sizes and different π-basicities have been prepared, and the electrochemical behaviour of these substances has been studied on screen printed graphite electrodes in the three room temperature ionic liquids (RTILs), 1-butyl-3-methylimidazolium hexafluorophosphate ([C4MIM][PF6]), 1-hexyl-3-methylimidazolium hexafluorophosphate ([C6MIM][PF6]) and 1-octyl-3-methylimidazolium hexafluorophosphate ([C8MIM][PF6]). Half redox potentials for the first and second one electron reduction waves were identified, and the diffusion coefficient values were estimated from cyclic voltammetry measurements. The influence of the nature of the RTIL and of the substitution pattern of the anthraquinone on the solvodynamic radii were studied. A correlation of the reductive potentials with the corresponding Hammett constants of the substituents was tested.M. Gómez-Mingot thanks the University of Alicante for her fellowship. T. Thiemann thanks funding from Global Centre of Excellence on New Carbon Resources, Kyushu University, Japan. J. Iniesta acknowledges Ministerio de Educación y Ciencia MEC Spain (Project: CTQ2007-62345)

ACS Style

Alicia Gomis-Berenguer; Maria Gómez-Mingot; Leticia García-Cruz; Thies Thiemann; Craig Banks; Vicente Montiel; Jesús Iniesta. The electrochemistry of arylated anthraquinones in room temperature ionic liquids. Journal of Physical Organic Chemistry 2013, 26, 367 -375.

AMA Style

Alicia Gomis-Berenguer, Maria Gómez-Mingot, Leticia García-Cruz, Thies Thiemann, Craig Banks, Vicente Montiel, Jesús Iniesta. The electrochemistry of arylated anthraquinones in room temperature ionic liquids. Journal of Physical Organic Chemistry. 2013; 26 (4):367-375.

Chicago/Turabian Style

Alicia Gomis-Berenguer; Maria Gómez-Mingot; Leticia García-Cruz; Thies Thiemann; Craig Banks; Vicente Montiel; Jesús Iniesta. 2013. "The electrochemistry of arylated anthraquinones in room temperature ionic liquids." Journal of Physical Organic Chemistry 26, no. 4: 367-375.