The Experts below are selected from a list of 261 Experts worldwide ranked by ideXlab platform
D Rabelo - One of the best experts on this subject based on the ideXlab platform.
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synthesis and characterization of composites based on polyaniline and styrene divinylbenzene copolymer using benzoyl peroxide as Oxidant Agent
Reactive & Functional Polymers, 2013Co-Authors: B H F Moura, R H B Assis, P I B M Franco, N Antoniosi R Filho, D RabeloAbstract:Abstract This work presents a method to prepare composites based on polyaniline (Pani) and styrene–divinylbenzene copolymers (SD) by in situ polymerization of aniline using benzoyl peroxide as Oxidant Agent. The composites were obtained from copolymers with two degrees of porosities which have higher and lower surface areas. Emeraldine Pani was prepared using hydrochloric acid as dopant. One cycle or four cycles of aniline polymerization were performed. The copolymers and their respective composites characterizations were performed by infrared spectroscopy, thermogravimetric analysis, physical nitrogen adsorption–desorption measurements, morphology analysis, elemental analysis and determination of Bronsted acid sites. The Pani was distributed overall porous SD copolymer producing composites with high surface area. Then, they were evaluated as catalysts for esterification reaction of a fat acid. It was found that that composites prepared with four cycles of in situ polymerization presented best catalytic activity than one cycle composites.
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Synthesis and characterization of composites based on polyaniline and styrene–divinylbenzene copolymer using benzoyl peroxide as Oxidant Agent
Reactive & Functional Polymers, 2013Co-Authors: B H F Moura, R H B Assis, P I B M Franco, N. R. Antoniosi Filho, D RabeloAbstract:Abstract This work presents a method to prepare composites based on polyaniline (Pani) and styrene–divinylbenzene copolymers (SD) by in situ polymerization of aniline using benzoyl peroxide as Oxidant Agent. The composites were obtained from copolymers with two degrees of porosities which have higher and lower surface areas. Emeraldine Pani was prepared using hydrochloric acid as dopant. One cycle or four cycles of aniline polymerization were performed. The copolymers and their respective composites characterizations were performed by infrared spectroscopy, thermogravimetric analysis, physical nitrogen adsorption–desorption measurements, morphology analysis, elemental analysis and determination of Bronsted acid sites. The Pani was distributed overall porous SD copolymer producing composites with high surface area. Then, they were evaluated as catalysts for esterification reaction of a fat acid. It was found that that composites prepared with four cycles of in situ polymerization presented best catalytic activity than one cycle composites.
Serge Chiron - One of the best experts on this subject based on the ideXlab platform.
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Combining micelle-clay sorption to solar photo-Fenton processes for domestic wastewater treatment
Environmental Science and Pollution Research, 2019Co-Authors: Monica Brienza, Shlomo Nir, Gael Plantard, Vincent Goetz, Serge ChironAbstract:A tertiary treatment of effluent from a biological domestic wastewater treatment plant was tested by combining filtration and solar photocatalysis. Adsorption was carried out by a sequence of two column filters, the first one filled with granular activated carbon (GAC) and the second one with granulated nano-composite of micelle-montmorillonite mixed with sand (20:100, w/w). The applied solar advanced oxidation process was homogeneous photo-Fenton photocatalysis using peroxymonosulfate (PMS) as Oxidant Agent. This combination of simple, robust, and low-cost technologies aimed to ensure water disinfection and emerging contaminants (ECs, mainly pharmaceuticals) removal. The filtration step showed good performances in removing dissolved organic matter and practically removing all bacteria such as Escherichia coli and Enterococcus faecalis from the secondary treated water. Solar advanced oxidation processes were efficient in elimination of trace levels of ECs. The final effluent presented an improved sanitary level with acceptable chemical and biological characteristics for irrigation.
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Combining micelle-clay sorption to solar photo-fenton for wastewater treatment
2016Co-Authors: Monica Brienza, Vincent Goetz, Serge ChironAbstract:A tertiary treatment of effluent from a biological domestic wastewater treatment plant was tested by combining filtration and solar photocatalysis. Adsorption was carried out by a sequence of two column filters, the first one filled with granular activated carbon (GAC) and the second one with granulated nano-composite of micelle-montmorillonite mixed with sand (20:100, w/w). The applied solar advanced oxidation process was homogeneous photo-Fenton photocatalysis using peroxymonosulfate (PMS) as Oxidant Agent. This combination of simple, robust, and low-cost technologies aimed to ensure water disinfection and emerging contaminants (ECs, mainly pharmaceuticals) removal. The filtration step showed good performances in removing dissolved organic matter and practically removing all bacteria such as Escherichia coli and Enterococcus faecalis from the secondary treated water. Solar advanced oxidation processes were efficient in elimination of trace levels of ECs. The final effluent presented an improved sanitary level with acceptable chemical and biological characteristics for irrigation.
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Combining micelle-clay sorption to solar photo-Fenton for domestic wastewater treatment and water reuse in irrigation.
2015Co-Authors: Serge Chiron, Monica Brienza, Shlomo Nir, Vincent GoetzAbstract:A tertiary treatment of effluent from a biological domestic wastewater treatment plant was tested by combining filtration and solar photocatalysis. Adsorption was carried out by a sequence of two column filters, the first one filled with granular activated carbon (GAC) and the second one with granulated nano-composite of micelle-montmorillonite mixed with sand (20:100, w/w). The applied solar advanced oxidation process was homogeneous photo-Fenton photocatalysis using peroxymonosulfate (PMS) as Oxidant Agent. This combination of simple, robust, and low-cost technologies aimed to ensure water disinfection and emerging contaminants (ECs, mainly pharmaceuticals) removal. The filtration step showed good performances in removing dissolved organic matter and practically removing all bacteria such as Escherichia coli and Enterococcus faecalis from the secondary treated water. Solar advanced oxidation processes were efficient in elimination of trace levels of ECs. The final effluent presented an improved sanitary level with acceptable chemical and biological characteristics for irrigation.
B H F Moura - One of the best experts on this subject based on the ideXlab platform.
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synthesis and characterization of composites based on polyaniline and styrene divinylbenzene copolymer using benzoyl peroxide as Oxidant Agent
Reactive & Functional Polymers, 2013Co-Authors: B H F Moura, R H B Assis, P I B M Franco, N Antoniosi R Filho, D RabeloAbstract:Abstract This work presents a method to prepare composites based on polyaniline (Pani) and styrene–divinylbenzene copolymers (SD) by in situ polymerization of aniline using benzoyl peroxide as Oxidant Agent. The composites were obtained from copolymers with two degrees of porosities which have higher and lower surface areas. Emeraldine Pani was prepared using hydrochloric acid as dopant. One cycle or four cycles of aniline polymerization were performed. The copolymers and their respective composites characterizations were performed by infrared spectroscopy, thermogravimetric analysis, physical nitrogen adsorption–desorption measurements, morphology analysis, elemental analysis and determination of Bronsted acid sites. The Pani was distributed overall porous SD copolymer producing composites with high surface area. Then, they were evaluated as catalysts for esterification reaction of a fat acid. It was found that that composites prepared with four cycles of in situ polymerization presented best catalytic activity than one cycle composites.
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Synthesis and characterization of composites based on polyaniline and styrene–divinylbenzene copolymer using benzoyl peroxide as Oxidant Agent
Reactive & Functional Polymers, 2013Co-Authors: B H F Moura, R H B Assis, P I B M Franco, N. R. Antoniosi Filho, D RabeloAbstract:Abstract This work presents a method to prepare composites based on polyaniline (Pani) and styrene–divinylbenzene copolymers (SD) by in situ polymerization of aniline using benzoyl peroxide as Oxidant Agent. The composites were obtained from copolymers with two degrees of porosities which have higher and lower surface areas. Emeraldine Pani was prepared using hydrochloric acid as dopant. One cycle or four cycles of aniline polymerization were performed. The copolymers and their respective composites characterizations were performed by infrared spectroscopy, thermogravimetric analysis, physical nitrogen adsorption–desorption measurements, morphology analysis, elemental analysis and determination of Bronsted acid sites. The Pani was distributed overall porous SD copolymer producing composites with high surface area. Then, they were evaluated as catalysts for esterification reaction of a fat acid. It was found that that composites prepared with four cycles of in situ polymerization presented best catalytic activity than one cycle composites.
Eduardo Dellacasa - One of the best experts on this subject based on the ideXlab platform.
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Liquid phase oxidation of limonene catalyzed by palladium supported on hydrotalcites
Applied Catalysis A: General, 2003Co-Authors: Juan Bussi, Francisco Peña, Pablo Timbal, Daniel Paz, Daniel Lorenzo, Alejandro Lopez, Eduardo DellacasaAbstract:Palladium supported on copper-magnesium-aluminium hydrotalcites (HTs) were prepared by using coprecipitation and impregnation techniques. The different palladium/hydrotalcites solid catalysts were tested in the liquid phase oxidation of pure limonene using molecular oxygen as the sole Oxidant Agent. Both palladium and copper were found to influence the conversion versus reaction time profile of limonene oxidation. A chain reaction mechanism is proposed to explain the experimental results. Palladium participates in the formation of allylic radicals through activation of carbon-hydrogen bonds of limonene and in the formation of adducts by cleavage of the carbon-carbon double bonds. Copper catalyzes mainly the decomposition of hydroperoxides leading to radical intermediates. Different oxygen containing derivates from limonene were formed (1,2- and 8,9-epoxylimonene, cis and trans carveol and carvone) according to the chain reaction mechanism. Higher reaction rates and final conversion of limonene over 70% were obtained with a suitable content of copper in the hydrotalcite. © 2003 Elsevier B.V. All rights reserved.
Monica Brienza - One of the best experts on this subject based on the ideXlab platform.
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Combining micelle-clay sorption to solar photo-Fenton processes for domestic wastewater treatment
Environmental Science and Pollution Research, 2019Co-Authors: Monica Brienza, Shlomo Nir, Gael Plantard, Vincent Goetz, Serge ChironAbstract:A tertiary treatment of effluent from a biological domestic wastewater treatment plant was tested by combining filtration and solar photocatalysis. Adsorption was carried out by a sequence of two column filters, the first one filled with granular activated carbon (GAC) and the second one with granulated nano-composite of micelle-montmorillonite mixed with sand (20:100, w/w). The applied solar advanced oxidation process was homogeneous photo-Fenton photocatalysis using peroxymonosulfate (PMS) as Oxidant Agent. This combination of simple, robust, and low-cost technologies aimed to ensure water disinfection and emerging contaminants (ECs, mainly pharmaceuticals) removal. The filtration step showed good performances in removing dissolved organic matter and practically removing all bacteria such as Escherichia coli and Enterococcus faecalis from the secondary treated water. Solar advanced oxidation processes were efficient in elimination of trace levels of ECs. The final effluent presented an improved sanitary level with acceptable chemical and biological characteristics for irrigation.
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Combining micelle-clay sorption to solar photo-fenton for wastewater treatment
2016Co-Authors: Monica Brienza, Vincent Goetz, Serge ChironAbstract:A tertiary treatment of effluent from a biological domestic wastewater treatment plant was tested by combining filtration and solar photocatalysis. Adsorption was carried out by a sequence of two column filters, the first one filled with granular activated carbon (GAC) and the second one with granulated nano-composite of micelle-montmorillonite mixed with sand (20:100, w/w). The applied solar advanced oxidation process was homogeneous photo-Fenton photocatalysis using peroxymonosulfate (PMS) as Oxidant Agent. This combination of simple, robust, and low-cost technologies aimed to ensure water disinfection and emerging contaminants (ECs, mainly pharmaceuticals) removal. The filtration step showed good performances in removing dissolved organic matter and practically removing all bacteria such as Escherichia coli and Enterococcus faecalis from the secondary treated water. Solar advanced oxidation processes were efficient in elimination of trace levels of ECs. The final effluent presented an improved sanitary level with acceptable chemical and biological characteristics for irrigation.
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Combining micelle-clay sorption to solar photo-Fenton for domestic wastewater treatment and water reuse in irrigation.
2015Co-Authors: Serge Chiron, Monica Brienza, Shlomo Nir, Vincent GoetzAbstract:A tertiary treatment of effluent from a biological domestic wastewater treatment plant was tested by combining filtration and solar photocatalysis. Adsorption was carried out by a sequence of two column filters, the first one filled with granular activated carbon (GAC) and the second one with granulated nano-composite of micelle-montmorillonite mixed with sand (20:100, w/w). The applied solar advanced oxidation process was homogeneous photo-Fenton photocatalysis using peroxymonosulfate (PMS) as Oxidant Agent. This combination of simple, robust, and low-cost technologies aimed to ensure water disinfection and emerging contaminants (ECs, mainly pharmaceuticals) removal. The filtration step showed good performances in removing dissolved organic matter and practically removing all bacteria such as Escherichia coli and Enterococcus faecalis from the secondary treated water. Solar advanced oxidation processes were efficient in elimination of trace levels of ECs. The final effluent presented an improved sanitary level with acceptable chemical and biological characteristics for irrigation.
