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Martin Drobek
Institut Européen des Membranes, IEM, UMR-5635, ENSCM, CNRS, Univ Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France

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Journal article
Published: 26 May 2020 in Journal of Industrial and Engineering Chemistry
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Acrylonitrile butadiene styrene (ABS) is one of the most extensively used polymer in 3D printing manufacturing due to its competitive thermal and mechanical properties. Recently, a special attention has been devoted to novel ABS composites featuring extra functionalities e.g. in the area of VOC removal. Herein, we report on a facile protocol for the functionalization of 3D printed ABS filters with a MOF (Metal-Organic Framework) material (ZIF-8) targeting the conception of attractive gas filters. The proposed synthesis strategy consists in low temperature ALD (Atomic Layer Deposition) of ZnO on the ABS grid followed by the hydrothermal conversion of ZnO to ZIF-8, both steps being conducted at 60 °C. In such way, the method enables an effective growth of ZIF-8 without altering the stability of the polymeric ABS support. The as-fabricated ABS/ZIF-8 filters offer a promising adsorption behaviour for dimethyl methylphosphonate (∼20.4 mg of DMMP per gram of ZIF-8), thus proving their potential for toxic gas capture applications.

ACS Style

Ismael Pellejero; Fernando Almazán; Marta Lafuente; Miguel A. Urbiztondo; Martin Drobek; Mikhael Bechelany; Anne Julbe; Luis M. Gandía. Functionalization of 3D printed ABS filters with MOF for toxic gas removal. Journal of Industrial and Engineering Chemistry 2020, 89, 194 -203.

AMA Style

Ismael Pellejero, Fernando Almazán, Marta Lafuente, Miguel A. Urbiztondo, Martin Drobek, Mikhael Bechelany, Anne Julbe, Luis M. Gandía. Functionalization of 3D printed ABS filters with MOF for toxic gas removal. Journal of Industrial and Engineering Chemistry. 2020; 89 ():194-203.

Chicago/Turabian Style

Ismael Pellejero; Fernando Almazán; Marta Lafuente; Miguel A. Urbiztondo; Martin Drobek; Mikhael Bechelany; Anne Julbe; Luis M. Gandía. 2020. "Functionalization of 3D printed ABS filters with MOF for toxic gas removal." Journal of Industrial and Engineering Chemistry 89, no. : 194-203.

Journal article
Published: 25 June 2019 in RSC Advances
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Grafting of diethylphophonate-based ILs onto γ-Al2O3 powder in solvothermal condition was achieved on mesoporous γ-alumina powder and membrane (A = organic spacer).

ACS Style

Marie-Alix Pizzoccaro; S. Muñoz Piña; B. Rebiere; Cecile Daniel; D. Farrusseng; M. Drobek; G. Silly; A. Julbe; G. Guerrero. Controlled grafting of dialkylphosphonate-based ionic liquids on γ-alumina: design of hybrid materials with high potential for CO2 separation applications. RSC Advances 2019, 9, 19882 -19894.

AMA Style

Marie-Alix Pizzoccaro, S. Muñoz Piña, B. Rebiere, Cecile Daniel, D. Farrusseng, M. Drobek, G. Silly, A. Julbe, G. Guerrero. Controlled grafting of dialkylphosphonate-based ionic liquids on γ-alumina: design of hybrid materials with high potential for CO2 separation applications. RSC Advances. 2019; 9 (35):19882-19894.

Chicago/Turabian Style

Marie-Alix Pizzoccaro; S. Muñoz Piña; B. Rebiere; Cecile Daniel; D. Farrusseng; M. Drobek; G. Silly; A. Julbe; G. Guerrero. 2019. "Controlled grafting of dialkylphosphonate-based ionic liquids on γ-alumina: design of hybrid materials with high potential for CO2 separation applications." RSC Advances 9, no. 35: 19882-19894.

Journal article
Published: 10 May 2019 in Ceramics International
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Solar-driven thermochemical splitting of CO2 and H2O using the redox properties of ceramic oxides is a promising option for the massive production of synthetic fuels without greenhouse gas emission and with complete recycling of chemical intermediates. The development of relevant redox materials with optimum formulation and design is a real challenge for the implementation of this attractive energy production technology. Metal oxides offering both high redox properties and easy shaping ability have thus to be identified. In this work a series of (La,Sr)(Mn,X)O3 and (La,Ca)(Mn,X)O3 powders with X = Al, Mg, Ga or Cr have been prepared by Pechini-derived methods. In particular the impact of the synthesis parameters and type of dopant (X) on the physicochemical characteristics and reactivity of the powders (sinterability and redox properties) has been investigated. The results offer a relevant control over the synthesis/structure/properties relationships of the perovskite powders as crucial parameters targeting both the best perovskite formulations and design to be possibly integrated in solar thermochemical reactors.

ACS Style

Julien Jouannaux; Anita Haeussler; Martin Drobek; André Ayral; Stéphane Abanades; Anne Julbe. Lanthanum manganite perovskite ceramic powders for CO2 splitting: Influence of Pechini synthesis parameters on sinterability and reactivity. Ceramics International 2019, 45, 15636 -15648.

AMA Style

Julien Jouannaux, Anita Haeussler, Martin Drobek, André Ayral, Stéphane Abanades, Anne Julbe. Lanthanum manganite perovskite ceramic powders for CO2 splitting: Influence of Pechini synthesis parameters on sinterability and reactivity. Ceramics International. 2019; 45 (12):15636-15648.

Chicago/Turabian Style

Julien Jouannaux; Anita Haeussler; Martin Drobek; André Ayral; Stéphane Abanades; Anne Julbe. 2019. "Lanthanum manganite perovskite ceramic powders for CO2 splitting: Influence of Pechini synthesis parameters on sinterability and reactivity." Ceramics International 45, no. 12: 15636-15648.

Review article
Published: 20 April 2019 in Current Opinion in Chemical Engineering
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Adsorption phenomena and surface-derived reactions on interfaces are fundamentally important processes in environmental chemistry, energy, catalysis, or materials processing, and play a crucial role in the control of membrane performance. Adsorption of species at the surface of membrane materials has been a vast topic of investigation for decades, with both fundamental impact and direct spin-off in industry. In this minireview, the pivotal role of adsorption for both gas-phase and liquid-phase membrane separations is underlined with a focus on inorganic and composite membrane materials, their design strategies, transport mechanisms and associated performance. A particular attention is dedicated to fouling phenomena and emerging surface treatment methods. Finally the role of adsorption for membrane microstructure characterisation and defect detection is discussed.

ACS Style

Anne Julbe; Martin Drobek; André Ayral. About the role of adsorption in inorganic and composite membranes. Current Opinion in Chemical Engineering 2019, 24, 88 -97.

AMA Style

Anne Julbe, Martin Drobek, André Ayral. About the role of adsorption in inorganic and composite membranes. Current Opinion in Chemical Engineering. 2019; 24 ():88-97.

Chicago/Turabian Style

Anne Julbe; Martin Drobek; André Ayral. 2019. "About the role of adsorption in inorganic and composite membranes." Current Opinion in Chemical Engineering 24, no. : 88-97.

Journal article
Published: 19 April 2019 in Nanomaterials
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Catalytic electrodes were prepared via carbonization of MIL-53(Fe) on the surface of porous carbon felt electrodes (CF) for use in wastewater treatment by the heterogeneous electro-Fenton (EF) process. The best results were obtained when the carbon felt was pretreated with nitric acid, enhancing the affinity of the MIL-53(Fe) for the surface. Following a series of optimization experiments, carbonization conditions of 800 °C for 5 h were used to form Fe-nanoporous carbon ([email protected]). The as-prepared electrodes were used as both cathode and heterogeneous catalyst in the EF process for the mineralization of exemplar dye Acid Orange 7 (AO7). Total organic carbon (TOC) removal of 46.1% was obtained within 8 h of electrolysis at around neutral pH (6.5) and the electrode retained over 80% of its original efficiency over five treatment cycles.

ACS Style

Thi Xuan Huong Le; Matthew G. Cowan; Martin Drobek; Mikhael Bechelany; Anne Julbe; Marc Cretin; Le. Fe-Nanoporous Carbon Derived from MIL-53(Fe): A Heterogeneous Catalyst for Mineralization of Organic Pollutants. Nanomaterials 2019, 9, 641 .

AMA Style

Thi Xuan Huong Le, Matthew G. Cowan, Martin Drobek, Mikhael Bechelany, Anne Julbe, Marc Cretin, Le. Fe-Nanoporous Carbon Derived from MIL-53(Fe): A Heterogeneous Catalyst for Mineralization of Organic Pollutants. Nanomaterials. 2019; 9 (4):641.

Chicago/Turabian Style

Thi Xuan Huong Le; Matthew G. Cowan; Martin Drobek; Mikhael Bechelany; Anne Julbe; Marc Cretin; Le. 2019. "Fe-Nanoporous Carbon Derived from MIL-53(Fe): A Heterogeneous Catalyst for Mineralization of Organic Pollutants." Nanomaterials 9, no. 4: 641.

Journal article
Published: 01 January 2019 in AIMS Materials Science
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ACS Style

Anita Haeussler; Stéphane Abanades; Julien Jouannaux; Martin Drobek; André Ayral; Anne Julbe. Recent progress on ceria doping and shaping strategies for solar thermochemical water and CO2 splitting cycles. AIMS Materials Science 2019, 6, 657 -684.

AMA Style

Anita Haeussler, Stéphane Abanades, Julien Jouannaux, Martin Drobek, André Ayral, Anne Julbe. Recent progress on ceria doping and shaping strategies for solar thermochemical water and CO2 splitting cycles. AIMS Materials Science. 2019; 6 (5):657-684.

Chicago/Turabian Style

Anita Haeussler; Stéphane Abanades; Julien Jouannaux; Martin Drobek; André Ayral; Anne Julbe. 2019. "Recent progress on ceria doping and shaping strategies for solar thermochemical water and CO2 splitting cycles." AIMS Materials Science 6, no. 5: 657-684.

Journal article
Published: 16 November 2018 in Microporous and Mesoporous Materials
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Commercial carbon felt (CF) substrates have been modified with iron-rich MFI zeolite nanoseeds prepared by a solvothermal microwave-assisted synthesis method. The as-prepared material ([email protected]) was characterized by TGA, XRD, SEM, and used as both cathode and catalyst in heterogeneous electro-Fenton (EF) process for the abatement of a biorefractory model dye pollutant, Acid Orange 7 (AO7). The complete degradation of 200 mL AO7 (0.1 mM) was achieved after 40 min contact with the modified material instead of more than 120 min with the pristine one. The proposed catalytic system exhibited an attractive activity with the total organic carbon (TOC) removal reaching 26.6% after 8 h at pH 6.5. The present results prove a promising efficiency of iron-rich [email protected] material for a “green” EF treatment of water pollutants, avoiding the use of any non-recyclable soluble Fe2+ salt classically required as EF catalyst.

ACS Style

Thi Xuan Huong Le; Martin Drobek; Mikhael Bechelany; Julius Motuzas; Anne Julbe; Marc Cretin. Application of Fe-MFI zeolite catalyst in heterogeneous electro-Fenton process for water pollutants abatement. Microporous and Mesoporous Materials 2018, 278, 64 -69.

AMA Style

Thi Xuan Huong Le, Martin Drobek, Mikhael Bechelany, Julius Motuzas, Anne Julbe, Marc Cretin. Application of Fe-MFI zeolite catalyst in heterogeneous electro-Fenton process for water pollutants abatement. Microporous and Mesoporous Materials. 2018; 278 ():64-69.

Chicago/Turabian Style

Thi Xuan Huong Le; Martin Drobek; Mikhael Bechelany; Julius Motuzas; Anne Julbe; Marc Cretin. 2018. "Application of Fe-MFI zeolite catalyst in heterogeneous electro-Fenton process for water pollutants abatement." Microporous and Mesoporous Materials 278, no. : 64-69.

Research article
Published: 19 September 2018 in Industrial & Engineering Chemistry Research
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This work reports on a promising strategy for the development of novel Grafted Ionic Liquid Membranes (GILMs) in which phosphonate-based ILs are confined within the pores of a mesoporous γ-Al2O3 ceramic membrane by chemical grafting. The influence of both the chemical nature (i.e., alkyl versus ether) of the organic spacer chain and the presence of phosphonate coupling functions were evidenced as crucial parameters influencing CO2 transport through the membranes. The effectiveness of the grafting procedure yielding GILMs was clearly demonstrated by FTIR and HR-MAS NMR and attractive membrane performance was evidenced through both the CO2/N2 ideal selectivity (~140) and CO2 permeability (~130 Barrer).

ACS Style

Marie-Alix Pizzoccaro-Zilamy; Martin Drobek; Eddy Petit; Cédric Totée; Gilles Silly; Gilles Guerrero; Matthew G. Cowan; André Ayral; Anne Julbe. Initial Steps toward the Development of Grafted Ionic Liquid Membranes for the Selective Transport of CO2. Industrial & Engineering Chemistry Research 2018, 57, 16027 -16040.

AMA Style

Marie-Alix Pizzoccaro-Zilamy, Martin Drobek, Eddy Petit, Cédric Totée, Gilles Silly, Gilles Guerrero, Matthew G. Cowan, André Ayral, Anne Julbe. Initial Steps toward the Development of Grafted Ionic Liquid Membranes for the Selective Transport of CO2. Industrial & Engineering Chemistry Research. 2018; 57 (47):16027-16040.

Chicago/Turabian Style

Marie-Alix Pizzoccaro-Zilamy; Martin Drobek; Eddy Petit; Cédric Totée; Gilles Silly; Gilles Guerrero; Matthew G. Cowan; André Ayral; Anne Julbe. 2018. "Initial Steps toward the Development of Grafted Ionic Liquid Membranes for the Selective Transport of CO2." Industrial & Engineering Chemistry Research 57, no. 47: 16027-16040.

Research article
Published: 18 September 2018 in ACS Applied Materials & Interfaces
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Herein, we report the fabrication of hydrogen gas sensors with enhanced sensitivity and excellent selectivity. The sensor device is based on the strategic combination of ZnO nanowires (NWs) decorated with palladium nanoparticles (Pd NPs) and a molecular sieve metal–organic framework (MOF) nanomembrane (ZIF-8). The Pd NPs permit the sensors to reach maximal signal responses, whereas the ZIF-8 overcoat enables for an excellent selectivity. Three steps were employed for the fabrication: (i) coating of a miniaturized sensor with vapor-grown ZnO NWs, (ii) decoration of these NWs with Pd NPs by atomic layer deposition, and (iii) partial solvothermal conversion of the tuned NWs surface to ZIF-8 nanomembrane. The microstructure and composition investigations of the ZIF-8/Pd/ZnO nanostructured materials confirmed the presence of both metallic Pd NPs and uniform ZIF-8 thin membrane layer. The integration of these nanomaterials within a miniaturized sensor device enabled the assessment of their performance for H2 detection at concentrations as low as 10 ppm in the presence of various gases such as C6H6, C7H8, C2H5OH, and CH3COCH3. Remarkably high-response signals of 3.2, 4.7, and 6.7 (Ra/Rg) have been measured for H2 detection at only 10, 30, and 50 ppm, whereas no noticeable response toward other tested gases was detected, thus confirming the excellent H2 selectivity obtained with such a sensor design. The results obtained showed that the performance of gas sensors toward H2 gas can be greatly increased by both the addition of Pd NPs and the use of ZIF-8 coating, acting as a molecular sieve membrane. Furthermore, the presented strategy could be extended toward the sensing of other species by a judicious choice of both the metallic NPs and MOF materials with tuned properties for specific molecule detection, thus opening a new avenue for the preparation of highly selective sensing devices.

ACS Style

Matthieu Weber; Jae-Hun Kim; Jae-Hyoung Lee; Jin-Young Kim; Igor Iatsunskyi; Emerson Coy; Martin Drobek; Anne Julbe; Mikhael Bechelany; Sang Sub Kim. High-Performance Nanowire Hydrogen Sensors by Exploiting the Synergistic Effect of Pd Nanoparticles and Metal–Organic Framework Membranes. ACS Applied Materials & Interfaces 2018, 10, 34765 -34773.

AMA Style

Matthieu Weber, Jae-Hun Kim, Jae-Hyoung Lee, Jin-Young Kim, Igor Iatsunskyi, Emerson Coy, Martin Drobek, Anne Julbe, Mikhael Bechelany, Sang Sub Kim. High-Performance Nanowire Hydrogen Sensors by Exploiting the Synergistic Effect of Pd Nanoparticles and Metal–Organic Framework Membranes. ACS Applied Materials & Interfaces. 2018; 10 (40):34765-34773.

Chicago/Turabian Style

Matthieu Weber; Jae-Hun Kim; Jae-Hyoung Lee; Jin-Young Kim; Igor Iatsunskyi; Emerson Coy; Martin Drobek; Anne Julbe; Mikhael Bechelany; Sang Sub Kim. 2018. "High-Performance Nanowire Hydrogen Sensors by Exploiting the Synergistic Effect of Pd Nanoparticles and Metal–Organic Framework Membranes." ACS Applied Materials & Interfaces 10, no. 40: 34765-34773.

Journal article
Published: 05 September 2018 in Membranes
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This experimental study explores the potential of supported ionic liquid membranes (SILMs) based on protic imidazolium ionic liquids (ILs) and randomly nanoporous polybenzimidazole (PBI) supports for CH4/N2 separation. In particular, three classes of SILMs have been prepared by the infiltration of porous PBI membranes with different protic moieties: 1-H-3-methylimidazolium bis (trifluoromethane sulfonyl)imide; 1-H-3-vinylimidazolium bis(trifluoromethane sulfonyl)imide followed by in situ ultraviolet (UV) polymerization to poly[1-(3H-imidazolium)ethylene] bis(trifluoromethanesulfonyl)imide. The polymerization process has been monitored by Fourier transform infrared (FTIR) spectroscopy and the concentration of the protic entities in the SILMs has been evaluated by thermogravimetric analysis (TGA). Single gas permeability values of N2 and CH4 at 313 K, 333 K and 363 K were obtained from a series of experiments conducted in a batch gas permeance system. The results obtained were assessed in terms of the preferential cavity formation and favorable solvation of methane in the apolar domains of the protic ionic network. The most attractive behavior exhibited poly[1-(3H-imidazolium)ethylene]bis(trifluoromethanesulfonyl)imide polymeric ionic liquid (PIL) cross-linked with 1% divinylbenzene supported membranes, showing stable performance when increasing the upstream pressure. The CH4/N2 permselectivity value of 2.1 with CH4 permeability of 156 Barrer at 363 K suggests that the transport mechanism of the as-prepared SILMs is solubility-dominated.

ACS Style

Parashuram Kallem; Christophe Charmette; Martin Drobek; Anne Julbe; Reyes Mallada; Maria Pilar Pina. Exploring the Gas-Permeation Properties of Proton-Conducting Membranes Based on Protic Imidazolium Ionic Liquids: Application in Natural Gas Processing. Membranes 2018, 8, 75 .

AMA Style

Parashuram Kallem, Christophe Charmette, Martin Drobek, Anne Julbe, Reyes Mallada, Maria Pilar Pina. Exploring the Gas-Permeation Properties of Proton-Conducting Membranes Based on Protic Imidazolium Ionic Liquids: Application in Natural Gas Processing. Membranes. 2018; 8 (3):75.

Chicago/Turabian Style

Parashuram Kallem; Christophe Charmette; Martin Drobek; Anne Julbe; Reyes Mallada; Maria Pilar Pina. 2018. "Exploring the Gas-Permeation Properties of Proton-Conducting Membranes Based on Protic Imidazolium Ionic Liquids: Application in Natural Gas Processing." Membranes 8, no. 3: 75.

Journal article
Published: 01 July 2018 in Sensors and Actuators B: Chemical
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ACS Style

Martin Drobek; Jae-Hun Kim; Mikhael Bechelany; Cyril Vallicari; Eric Leroy; Anne Julbe; Sang Sub Kim. Design and fabrication of highly selective H2 sensors based on SIM-1 nanomembrane-coated ZnO nanowires. Sensors and Actuators B: Chemical 2018, 264, 410 -418.

AMA Style

Martin Drobek, Jae-Hun Kim, Mikhael Bechelany, Cyril Vallicari, Eric Leroy, Anne Julbe, Sang Sub Kim. Design and fabrication of highly selective H2 sensors based on SIM-1 nanomembrane-coated ZnO nanowires. Sensors and Actuators B: Chemical. 2018; 264 ():410-418.

Chicago/Turabian Style

Martin Drobek; Jae-Hun Kim; Mikhael Bechelany; Cyril Vallicari; Eric Leroy; Anne Julbe; Sang Sub Kim. 2018. "Design and fabrication of highly selective H2 sensors based on SIM-1 nanomembrane-coated ZnO nanowires." Sensors and Actuators B: Chemical 264, no. : 410-418.

Journal article
Published: 01 June 2018 in Journal of Membrane Science
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In the area of membrane separations the development of powerful on-line diagnostic tools allowing the reliability insurance of both membranes and associated processes becomes a major concern. In this context, Acoustic Emission (AE) appears as a potentially attractive method to ensure i) quality control for membrane production lines and ii) on-line monitoring of their evolution when implemented in integrated industrial systems requiring high level of safety/security. In this work, simultaneous gas permeation measurements and acoustic emission technique have been coupled in order to characterize series of porous membranes operating under various conditions. AE events resulting from different gas transport mechanisms through porous membranes series have been identified and classified thanks to a statistical post-treatment of the recorded acoustic signals. A close relationship between AE signal characteristics, physicochemical properties of the porous membranes and associated gas transport mechanisms was established. These promising results constitute a key step in the development of an innovative tool for non-invasive on-line diagnosis dedicated to the characterization and control of porous ceramic membranes.

ACS Style

Micka Bah; Etoungh D. Manga; Hugues Blasco; Philippe da Costa; Martin Drobek; André Ayral; Gilles Despaux; Benoit Coasne; Emmanuel Le Clezio; Anne Julbe. Acoustic emission monitoring during gas permeation: a new operando diagnostic tool for porous membranes. Journal of Membrane Science 2018, 555, 88 -96.

AMA Style

Micka Bah, Etoungh D. Manga, Hugues Blasco, Philippe da Costa, Martin Drobek, André Ayral, Gilles Despaux, Benoit Coasne, Emmanuel Le Clezio, Anne Julbe. Acoustic emission monitoring during gas permeation: a new operando diagnostic tool for porous membranes. Journal of Membrane Science. 2018; 555 ():88-96.

Chicago/Turabian Style

Micka Bah; Etoungh D. Manga; Hugues Blasco; Philippe da Costa; Martin Drobek; André Ayral; Gilles Despaux; Benoit Coasne; Emmanuel Le Clezio; Anne Julbe. 2018. "Acoustic emission monitoring during gas permeation: a new operando diagnostic tool for porous membranes." Journal of Membrane Science 555, no. : 88-96.

Article
Published: 09 April 2018 in Reaction Kinetics, Mechanisms and Catalysis
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In this work, natural laterites from Burkina Faso were calcined at different temperatures in the range 400–800 °C. XRD, EDS, N2 adsorption manometry and TGA–DSC analyses together with a thorough analysis of available literature data, support that the laterite sample consists mainly of goethite and hematite embedded in a framework of kaolinite and quartz with different interaction extents. During calcination up to 400 °C, the kaolinite structure is partially destroyed due to the loss of structural water and the goethite phase previously in association with the kaolinite lattice transforms into free hematite crystallites, resulting in a drop of the surface area of the composite material. At 600 °C, the kaolinite lattice is further deshydroxylated leading to an amorphous metakaolin matrix containing mainly surface hematite nanophases. Despite a substantial reduction of the surface area due to the calcination-induced shrinkage of alumino-silicate framework, the laterite calcined at 600 °C exhibits the highest performance in the methylene blue (MB) degradation by the Fenton process with a degradation percentage of 99% after 100 min of treatment at room temperature. The effects of solution pH, H2O2 concentration, initial MB concentration and catalyst dosage were investigated. A slight but significant visible-light-induced removal enhancement effect suggested a visible-light photocatalytic activity of the hematite phase. This calcined laterite demonstrates a strong catalytic stability over several utilizations therefore is worth to be seriously considered in the design of sustainable and readily affordable wastewater treatment solutions in developing tropical countries.

ACS Style

Gloria Murielle Rostandi Kpinsoton; Hela Karoui; Yohan Richardson; Blédja N’Dri Stéphanie Koffi; Hamma Yacouba; Julius Motuzas; Martin Drobek; Abdou Lawane Gana. New insight into the microstructure of natural calcined laterites and their performance as heterogeneous Fenton catalyst for methylene blue degradation. Reaction Kinetics, Mechanisms and Catalysis 2018, 124, 931 -956.

AMA Style

Gloria Murielle Rostandi Kpinsoton, Hela Karoui, Yohan Richardson, Blédja N’Dri Stéphanie Koffi, Hamma Yacouba, Julius Motuzas, Martin Drobek, Abdou Lawane Gana. New insight into the microstructure of natural calcined laterites and their performance as heterogeneous Fenton catalyst for methylene blue degradation. Reaction Kinetics, Mechanisms and Catalysis. 2018; 124 (2):931-956.

Chicago/Turabian Style

Gloria Murielle Rostandi Kpinsoton; Hela Karoui; Yohan Richardson; Blédja N’Dri Stéphanie Koffi; Hamma Yacouba; Julius Motuzas; Martin Drobek; Abdou Lawane Gana. 2018. "New insight into the microstructure of natural calcined laterites and their performance as heterogeneous Fenton catalyst for methylene blue degradation." Reaction Kinetics, Mechanisms and Catalysis 124, no. 2: 931-956.

Research article
Published: 21 November 2017 in Environmental Science and Pollution Research
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Environmentally emerging micro-pollutant, caffeine, was mineralized (i.e., full degradation) by the isomorphic incorporation of Fe into silicalite-1 (mordenite framework inverted (MFI) structure zeolite) through a microwave synthesis method. The Fe incorporation conferred mesopore formation that facilitated caffeine access and transport to the MFI zeolite structure. Increasing the Fe content favored the formation of Fe(O)4 sites within the MFI structure. The catalytic activity for the degradation of caffeine increased as a function of Fe(O)4 sites via a Fenton-like heterogeneous reaction, otherwise not attainable using Fe-free pure MFI zeolites. Caffeine degradation reached 96% (TOC based) for zeolites containing 2.33% of Fe.

ACS Style

Julius Motuzas; Martin Drobek; Dana L. Martens; Cyril Vallicari; Anne Julbe; João C. Diniz Da Costa. Environmental mineralization of caffeine micro-pollutant by Fe-MFI zeolites. Environmental Science and Pollution Research 2017, 25, 3628 -3635.

AMA Style

Julius Motuzas, Martin Drobek, Dana L. Martens, Cyril Vallicari, Anne Julbe, João C. Diniz Da Costa. Environmental mineralization of caffeine micro-pollutant by Fe-MFI zeolites. Environmental Science and Pollution Research. 2017; 25 (4):3628-3635.

Chicago/Turabian Style

Julius Motuzas; Martin Drobek; Dana L. Martens; Cyril Vallicari; Anne Julbe; João C. Diniz Da Costa. 2017. "Environmental mineralization of caffeine micro-pollutant by Fe-MFI zeolites." Environmental Science and Pollution Research 25, no. 4: 3628-3635.

Article
Published: 15 September 2017 in Reaction Kinetics, Mechanisms and Catalysis
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Novel titania supported activated carbon catalysts were prepared by a straightforward titania coating route of a microporous activated carbon (AC) derived from shea nut shells, and investigated in phenol photocatalytic degradation. The proposed coating method enables a fixation of the preformed titania anatase nanoparticles (TiO2 NPs) in the external porosity thus allowing their accessibility towards UV irradiation, without causing any reduction of the AC specific area. Interestingly, the coating treatment reshapes the porous texture of the as-prepared TiO2–AC composite materials resulting in an improvement of the adsorption capacity and the formation of an additional mesoporosity on the TiO2-AC surface. Photocatalytic experiments carried out in a batch reactor led to 97% elimination rate of phenol in an aqueous solution with the AC catalysts containing TiO2 NPs in the range from 11 to 34 wt%. The photodegradation performance of the TiO2–AC catalysts was maintained over several successive cycles, without the need of any regeneration treatment. Considering both the textural and microstructural features of the composite materials and their associated phenol removal kinetics, in this paper, we provide new insights into phenol photodegradation pathway involving an effective coupling of adsorption and photodegradation functionalities, resulting in a photo-assisted regeneration mechanism of the catalyst.

ACS Style

Cédric Telegang Chekem; Yohan Richardson; Martin Drobek; G. Plantard; Joel Blin; Vincent Goetz. Effective coupling of phenol adsorption and photodegradation at the surface of micro-and mesoporous TiO2-activated carbon materials. Reaction Kinetics, Mechanisms and Catalysis 2017, 122, 1297 -1321.

AMA Style

Cédric Telegang Chekem, Yohan Richardson, Martin Drobek, G. Plantard, Joel Blin, Vincent Goetz. Effective coupling of phenol adsorption and photodegradation at the surface of micro-and mesoporous TiO2-activated carbon materials. Reaction Kinetics, Mechanisms and Catalysis. 2017; 122 (2):1297-1321.

Chicago/Turabian Style

Cédric Telegang Chekem; Yohan Richardson; Martin Drobek; G. Plantard; Joel Blin; Vincent Goetz. 2017. "Effective coupling of phenol adsorption and photodegradation at the surface of micro-and mesoporous TiO2-activated carbon materials." Reaction Kinetics, Mechanisms and Catalysis 122, no. 2: 1297-1321.

Ceramics
Published: 31 July 2017 in Journal of Materials Science
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This work reports detailed investigations for the preparation of nanostructured titania powders by a solvent-free sol–gel-derived process, operated in supercritical CO2 (SC-CO2) at high pressures (10–30 MPa) and large range of temperatures (373–823 K). Depending on the processing temperature, the reaction between Ti(OiPr)4 and water performed in a single supercritical phase led to the formation of either amorphous (Ti(OH)4—titanium hydroxide) or crystalline (TiO2—titanium dioxide) nanostructured particles. Crystalline (anatase) mesoporous powders with high specific surface area were obtained directly in CO2 solvent under supercritical conditions at temperatures as low as 523 K. The effect of hydrodynamic key process parameters such as stirring and water injection rate on both powder morphology and aggregation degree was also investigated in details. The optimized TiO2 anatase powders exhibited attractive photocatalytic activity, with high potential for the degradation of water pollutants.

ACS Style

A. Hertz; M. Drobek; J.-C. Ruiz; F. Charton; S. Sarrade; C. Guizard; A. Julbe. A detailed insight into the preparation of nanocrystalline TiO2 powders in supercritical carbon dioxide. Journal of Materials Science 2017, 52, 12635 -12652.

AMA Style

A. Hertz, M. Drobek, J.-C. Ruiz, F. Charton, S. Sarrade, C. Guizard, A. Julbe. A detailed insight into the preparation of nanocrystalline TiO2 powders in supercritical carbon dioxide. Journal of Materials Science. 2017; 52 (21):12635-12652.

Chicago/Turabian Style

A. Hertz; M. Drobek; J.-C. Ruiz; F. Charton; S. Sarrade; C. Guizard; A. Julbe. 2017. "A detailed insight into the preparation of nanocrystalline TiO2 powders in supercritical carbon dioxide." Journal of Materials Science 52, no. 21: 12635-12652.

Research article
Published: 10 July 2017 in The Journal of Physical Chemistry C
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A novel material was fabricated by deposition of graphitized Nitrogen-doped Porous Carbon layer (NPC) on commercial Carbon Felt (CF). The NPC was obtained via Atomic Layer Deposition of zinc oxide (ZnO) and its subsequent solvothermal conversion to Zeolitic Imidazolate Framework (ZIF-8) followed by its carbonization under controlled atmosphere. Both physical and electrochemical properties have been evaluated by Scanning Electron Microscopy, X-Ray Diffraction, Energy-Dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, nitrogen sorption, contact angle and cyclic voltammetry measurements. The parameters affecting the growth of NPC, such as the amount of ZnO/ZIF-8 material before calcination and thermal treatment temperature have been investigated in details. The versatility of the as-prepared NPC/CF material was assessed by studying: i) its adsorption ability and/or ii) its behavior as cathode in Electro-Fenton process (EF) for the elimination of a model refractory pollutant (acid orange 7 (AO7)). Once used as adsorbent, the NPC/CF proved good adsorption capacity with 97 % color removal of initial 0.02 mM dye concentration after 30min. Moreover, the application of such novel cathode could also reduce the cost for EF technology by using lower energy consumption at 0.54 kWh g−1 TOC. The apparent rate constant (kapp~0.8 min-1) obtained for NPC/CF was more than 7 times higher compared to pristine CF commercial electrode, thus leading to more than 90% TOC removal in 8 h. In addition, high reaction efficiency and system durability were attributed to continuous regeneration of the NPC/CF sorption capacity upon total mineralization of the pollutants accumulated at the electrode surface. Results confirmed that the new NPC/CF material behaves as a highly active electrode with attractive adsorption efficiency and at the same time it possess an excellent electrochemical activity in Electro-Fenton (EF) oxidation process for the removal of persistent water pollutants.

ACS Style

Thi Xuan Huong Le; Roseline Esmilaire; Martin Drobek; Mikhael Bechelany; Cyril Vallicari; Sophie Cerneaux; Anne Julbe; Marc Cretin. Nitrogen-Doped Graphitized Carbon Electrodes for Biorefractory Pollutant Removal. The Journal of Physical Chemistry C 2017, 121, 15188 -15197.

AMA Style

Thi Xuan Huong Le, Roseline Esmilaire, Martin Drobek, Mikhael Bechelany, Cyril Vallicari, Sophie Cerneaux, Anne Julbe, Marc Cretin. Nitrogen-Doped Graphitized Carbon Electrodes for Biorefractory Pollutant Removal. The Journal of Physical Chemistry C. 2017; 121 (28):15188-15197.

Chicago/Turabian Style

Thi Xuan Huong Le; Roseline Esmilaire; Martin Drobek; Mikhael Bechelany; Cyril Vallicari; Sophie Cerneaux; Anne Julbe; Marc Cretin. 2017. "Nitrogen-Doped Graphitized Carbon Electrodes for Biorefractory Pollutant Removal." The Journal of Physical Chemistry C 121, no. 28: 15188-15197.

Research article
Published: 24 April 2017 in ACS Applied Materials & Interfaces
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Liquid-induced phase-separation micromolding (LIPSμM) has been successfully used for manufacturing hierarchical porous polybenzimidazole (HPBI) microsieves (42–46% porosity, 30–40 μm thick) with a specific pore architecture (pattern of macropores: ∼9 μm in size, perforated, dispersed in a porous matrix with a 50–100 nm pore size). Using these microsieves, proton-exchange membranes were fabricated by the infiltration of a 1H-3-vinylimidazolium bis(trifluoromethanesulfonyl)imide liquid and divinylbenzene (as a cross-linker), followed by in situ UV polymerization. Our approach relies on the separation of the ion conducting function from the structural support function. Thus, the polymeric ionic liquid (PIL) moiety plays the role of a proton conductor, whereas the HPBI microsieve ensures the mechanical resistance of the system. The influence of the porous support architecture on both proton transport performance and mechanical strength has been specifically investigated by means of comparison with straight macroporous (36% porosity) and randomly nanoporous (68% porosity) PBI counterparts. The most attractive results were obtained with the poly[1-(3H-imidazolium)ethylene]bis(trifluoromethanesulfonyl)imide PIL cross-linked with 1% divinylbenzene supported on HPBI membranes with a 21-μm-thick skin layer, achieving conductivity values up to 85 mS cm–1 at 200 °C under anhydrous conditions and in the absence of mineral acids.

ACS Style

Parashuram Kallem; Martin Drobek; Anne Julbe; Erik J. Vriezekolk; Reyes Mallada; Maria Pilar Pina. Hierarchical Porous Polybenzimidazole Microsieves: An Efficient Architecture for Anhydrous Proton Transport via Polyionic Liquids. ACS Applied Materials & Interfaces 2017, 9, 14844 -14857.

AMA Style

Parashuram Kallem, Martin Drobek, Anne Julbe, Erik J. Vriezekolk, Reyes Mallada, Maria Pilar Pina. Hierarchical Porous Polybenzimidazole Microsieves: An Efficient Architecture for Anhydrous Proton Transport via Polyionic Liquids. ACS Applied Materials & Interfaces. 2017; 9 (17):14844-14857.

Chicago/Turabian Style

Parashuram Kallem; Martin Drobek; Anne Julbe; Erik J. Vriezekolk; Reyes Mallada; Maria Pilar Pina. 2017. "Hierarchical Porous Polybenzimidazole Microsieves: An Efficient Architecture for Anhydrous Proton Transport via Polyionic Liquids." ACS Applied Materials & Interfaces 9, no. 17: 14844-14857.

Journals
Published: 12 September 2016 in Journal of Materials Chemistry A
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A model azo dye pollutant, Acid Orange 7 (AO7), was removed efficiently from an aqueous medium by a smart eco-friendly Fuel Cell-Fenton (FC-Fenton) system without any external power supply.

ACS Style

Thi Xuan Huong Le; Roseline Esmilaire; Martin Drobek; Mikhael Bechelany; Cyril Vallicari; Duy Linh Nguyen; Anne Julbe; Sophie Tingry; Marc Cretin. Design of a novel fuel cell-Fenton system: a smart approach to zero energy depollution. Journal of Materials Chemistry A 2016, 4, 17686 -17693.

AMA Style

Thi Xuan Huong Le, Roseline Esmilaire, Martin Drobek, Mikhael Bechelany, Cyril Vallicari, Duy Linh Nguyen, Anne Julbe, Sophie Tingry, Marc Cretin. Design of a novel fuel cell-Fenton system: a smart approach to zero energy depollution. Journal of Materials Chemistry A. 2016; 4 (45):17686-17693.

Chicago/Turabian Style

Thi Xuan Huong Le; Roseline Esmilaire; Martin Drobek; Mikhael Bechelany; Cyril Vallicari; Duy Linh Nguyen; Anne Julbe; Sophie Tingry; Marc Cretin. 2016. "Design of a novel fuel cell-Fenton system: a smart approach to zero energy depollution." Journal of Materials Chemistry A 4, no. 45: 17686-17693.

Book chapter
Published: 31 August 2016 in Encyclopedia of Membranes
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Zeolite X, together with zeolite Y, belongs to the family of aluminosilicate molecular sieves with a faujasite-type structure (FAU). It is characterized by the formula |(Ca, Mg, Na2)29 (H2O)240|[Al58Si134O384]– FAU (International zeolite association (IZA)). Faujasite is a rare zeolite, although its synthetic counterparts Linde X and Linde Y are largely used as sorbents and catalysts. Zeolite X differs from zeolite Y by its Si/Al atomic ratio which is typically in the range from 1 to 1.5 for the X and higher for the Y-type zeolite. High Si/Al ratio is desirable towards thermal stability, a property that is less favorable to zeolite X. The 24 tetrahedra cuboctahedral units (sodalite cages) in the FAU framework type are arranged in the same way as the carbon atoms in diamond. They are connected via hexagonal prisms (double six rings) forming a three-dimensional porous channel structure along [110], characterized by 12 oxygen ring window openings with the aperture of 8 Å and supercages of ...

ACS Style

Anne Julbe; Martin Drobek. Zeolite X Type. Encyclopedia of Membranes 2016, 2059 -2060.

AMA Style

Anne Julbe, Martin Drobek. Zeolite X Type. Encyclopedia of Membranes. 2016; ():2059-2060.

Chicago/Turabian Style

Anne Julbe; Martin Drobek. 2016. "Zeolite X Type." Encyclopedia of Membranes , no. : 2059-2060.