Photocatalytic Steady-State Methylviologen Oxidation in Air-Saturated TiO2 Aqueous Suspension: Initial Photonic Efficiency and Initial Oxidation Rate as a Function of Methylviologen Concentration and Light Intensity Научная публикация
Журнал |
Journal of Photochemistry and Photobiology A: Chemistry
ISSN: 1010-6030 , E-ISSN: 1873-2666 |
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Вых. Данные | Год: 2000, Том: 134, Номер: 3, Страницы: 219-226 Страниц : 8 DOI: 10.1016/S1010-6030(00)00254-9 | ||
Ключевые слова | Methylviologen, OH radical, Oxidation, Photocatalyst, TiO2 | ||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Swedish Research Council | 281-95-782 |
2 | Фонд "Интеграция" |
Реферат:
Photocatalytic methylviologen oxidation in TiO2 aqueous suspension has been studied. The initial photonic efficiency has been found to increase dramatically as the light intensity decreases, approaching 34% at extremely low light intensity. The maximum photonic efficiency does not depend on methylviologen concentration and pH of the solution. Increasing the surface methylviologen concentration by increasing the methylviologen concentration in the solution or varying pH causes the photonic efficiency comes to its maximum value at a higher intensity of incident light. The light intensity affects the shape of the dependencies of initial rate versus methylviologen concentration. The model explaining the experimental data has been examined. Two parameters of this model appear to be able to characterize the material of TiO2 photocatalysts in a quite wide range of conditions.
Библиографическая ссылка:
Martyanov I.N.
, Savinov E.N.
Photocatalytic Steady-State Methylviologen Oxidation in Air-Saturated TiO2 Aqueous Suspension: Initial Photonic Efficiency and Initial Oxidation Rate as a Function of Methylviologen Concentration and Light Intensity
Journal of Photochemistry and Photobiology A: Chemistry. 2000. V.134. N3. P.219-226. DOI: 10.1016/S1010-6030(00)00254-9 WOS Scopus РИНЦ
Photocatalytic Steady-State Methylviologen Oxidation in Air-Saturated TiO2 Aqueous Suspension: Initial Photonic Efficiency and Initial Oxidation Rate as a Function of Methylviologen Concentration and Light Intensity
Journal of Photochemistry and Photobiology A: Chemistry. 2000. V.134. N3. P.219-226. DOI: 10.1016/S1010-6030(00)00254-9 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 25 окт. 1999 г. |
Принята к публикации: | 28 февр. 2000 г. |
Опубликована online: | 2 июн. 2000 г. |
Опубликована в печати: | 14 июн. 2000 г. |
Идентификаторы БД:
Web of science | WOS:000087508600011 |
Scopus | 2-s2.0-0009154842 |
РИНЦ | 13341421 |
Chemical Abstracts | 2000:361117 |
Chemical Abstracts (print) | 133:185389 |
OpenAlex | W1991483864 |