Graphene oxide decorated with Ag and CeO2 nanoparticles as a catalyst for room-temperature 4-nitrophenol reduction
Catalytic reduction of nitroaromatic compounds (NCs) into corresponding aminoaromatic compounds (ACs) addresses two challenges: enhancing of the manufacture scale of ACs as valuable chemical intermediates and removal of NCs as widespread wastewater pollutants. Among the noble metal catalysts that fe...
| Published in: | Catalysts Vol. 12, № 11. P. 1393 (1-23) |
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| Main Author: | |
| Other Authors: | , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001008658 Перейти в каталог НБ ТГУ |
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| 024 | 7 | |a 10.3390/catal12111393 |2 doi | |
| 035 | |a koha001008658 | ||
| 040 | |a RU-ToGU |b rus |c RU-ToGU | ||
| 100 | 1 | |a Taratayko, Aleksey V. |9 897479 | |
| 245 | 1 | 0 | |a Graphene oxide decorated with Ag and CeO2 nanoparticles as a catalyst for room-temperature 4-nitrophenol reduction |c A. V. Taratayko, E. N. Kolobova, G. V. Mamontov |
| 336 | |a Текст | ||
| 337 | |a электронный | ||
| 504 | |a Библиогр.: 78 назв. | ||
| 520 | 3 | |a Catalytic reduction of nitroaromatic compounds (NCs) into corresponding aminoaromatic compounds (ACs) addresses two challenges: enhancing of the manufacture scale of ACs as valuable chemical intermediates and removal of NCs as widespread wastewater pollutants. Among the noble metal catalysts that feature low-temperature activity, chemical stability, and nontoxicity, silver-containing catalysts are attractive as cost-efficient and easily prepared compositions. This paper is devoted to the design and study of efficient and environmentally benign Ag- and CeO2-containing NCs reduction catalysts supported on graphene oxide (GO). The silver- and/or ceria-containing catalysts are synthesized using deposition-precipitation onto GO prepared by oxidative treatment of graphite. The catalysts and support are characterized by XRD, XPS, TGA, N2 sorption, Raman spectroscopy, and UV-VIS spectrometry. The influence of state and the interaction of the active components on catalytic activity is thoroughly estimated in 4-nitrophenol (4-NP) reduction into 4-aminophenol (4-AP) at ambient pressure and room temperature. Nanosized Ag and CeO2 particles with sizes up to 30 and 5 nm, respectively, in the GO structure are obtained. The co-deposition of Ag and CeO2 onto GO promotes the stabilization of silver in the catalyst. The Ag-CeO2/GO catalyst demonstrates superior activity in the synthesized series (kapp of 1.615 and 3.674 min-1 for as-prepared and pre-reduced samples). In addition, the Ag-CeO2/GO catalyst retains good stability and a low leaching degree of the active components that makes these compositions efficient in NCs' reduction into corresponding ACs | |
| 653 | |a оксид графена | ||
| 653 | |a 4-нитрофенол | ||
| 653 | |a мягкие условия | ||
| 653 | |a оксид церия | ||
| 653 | |a наночастицы серебра | ||
| 655 | 4 | |a статьи в журналах |9 897480 | |
| 700 | 1 | |a Kolobova, Ekaterina N. |9 877961 | |
| 700 | 1 | |a Mamontov, Grigory V. |9 99196 | |
| 773 | 0 | |t Catalysts |d 2022 |g Vol. 12, № 11. P. 1393 (1-23) |x 2073-4344 | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 4 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001008658 | |
| 856 | |y Перейти в каталог НБ ТГУ |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=1008658 | ||
| 908 | |a статья | ||
| 999 | |c 1008658 |d 1008658 | ||
| 039 | |b 100 | ||