Sibunit-Based Catalytic Materials for the Deep Oxidation of Organic Ecotoxicants in Aqueous Solutions. II: Wet Peroxide Oxidation over Oxidized Carbon Catalysts
Научная публикация
| Общая информация |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Catalysis in Industry
ISSN: 2070-0504
, E-ISSN: 2070-0555
|
| Вых. Данные |
Год: 2011,
Том: 3,
Номер: 2,
Страницы: 161-169
Страниц
: 9
DOI:
10.1134/S2070050411020152
|
| Ключевые слова |
Carbon materials, Hydrogen peroxide, Wet peroxide oxidation |
| Авторы |
Taran O.P.
1
,
Polyanskaya E.M.
1
,
Ogorodnikova O.L.
1
,
Descorme C.
2
,
Besson M.
2
,
Parmon V.N.
1,3
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
|
| 2 |
Institut de recherches sur la catalyse et l’environnement de Lyon, Université de Lyon, Lyon, 69626 France
|
| 3 |
Novosibirsk State University, Novosibirsk, 630090 Russia
|
|
Информация о финансировании (5)
|
1
|
Российский фонд фундаментальных исследований
|
09-03-93114
|
|
2
|
Российский фонд фундаментальных исследований
|
05-03-22004
|
|
3
|
Российский фонд фундаментальных исследований
|
06-03-32969
|
|
4
|
Министерство образования и науки Российской Федерации
|
|
|
5
|
Посольство Франции в России
|
|
The influence of the surface chemical composition of carbon catalysts prepared by oxidative treatment on the basis of the Sibunit-4 carbon material of the Sibunit family on their catalytic properties in the liquid-phase oxidation of formic acid by hydrogen peroxide was studied for the first time. Pure carbon samples were found to be active in the destruction of hydrogen peroxide and the oxidation of an organic substrate, and their activity decreased with an increase in the number of carboxyl and lactone groups on the surface of a carbon catalyst. Nevertheless, the rates of such processes on carbon catalysts are lower than in the presence of even small amounts of homogeneous Fe3+. It was shown that carbon samples accelerate or (to the contrary) inhibit the Fe3+-catalyzed peroxide oxidation of an organic substance, depending on the quantitative ratio of surface carboxyl and lactone groups and Fe3+ ions in the reaction solution. Possible acceleration and inhibition mechanisms for peroxide oxidation on carbon catalysts are discussed. The established influence of the surface chemical properties of carbon catalysts must be taken into account in the development of catalysts and processes for the oxidative purification of industrial wastewater.