Sciact
  • EN
  • RU

Uranyl-Modified TiO2 for Complete Photocatalytic Oxidation of Volatile Organic Compounds under UV and Visible Light Научная публикация

Журнал Chemical Engineering Journal
ISSN: 1385-8947 , E-ISSN: 1873-3212
Вых. Данные Год: 2019, Том: 370, Страницы: 1440-1449 Страниц : 10 DOI: 10.1016/j.cej.2019.03.280
Ключевые слова TiO2 photocatalysis; Uranyl ion (UO22+); VOC oxidation; UV; Visible light
Авторы Selishchev Dmitry S. 1,2 , Filippov Tihon N. 1 , Lyulyukin Mikhail N. 1,2 , Kozlov Denis V. 1,2
Организации
1 Boreskov Institute of Catalysis, Novosibirsk 630090, Russian Federation
2 Novosibirsk State University, Novosibirsk 630090, Russian Federation

Информация о финансировании (1)

1 Федеральное агентство научных организаций России 0303-2016-0016

Реферат: Three commercially available TiO2 powder photocatalysts and additional one synthesized in laboratory via the modification of anatase TiO2 with uranyl nitrate (5 wt%) have been studied in the complete oxidation of several VOCs under UV (367 nm) and visible (450 nm) light. The kinetic curves for VOC removal, intermediate formation, and final product accumulation are presented in the paper and discussed in detail. The TiO2 modification with uranyl ions (UO22+) provides the ability for photocatalyst to absorb visible light with wavelength up to 500 nm. The photocatalytic activity of the uranyl-modified TiO2 under visible light was up to 56 times higher than the activity of one of the best visible light sensitive commercial photocatalysts, KRONOClean® 7000 from Kronos Worldwide Inc. The complete oxidation of all the tested pollutants occurred over UO22+/TiO2 both under UV and visible light. The formation of gaseous intermediates was observed for certain types of VOC, but the intermediates were further completely oxidized to carbon oxides and water under long-term irradiation. The kinetic regularities of PCO process under visible light were similar to the process under UV except somewhat prolonged kinetics due to lower photonic efficiency of light utilization in the visible spectral range.
Библиографическая ссылка: Selishchev D.S. , Filippov T.N. , Lyulyukin M.N. , Kozlov D.V.
Uranyl-Modified TiO2 for Complete Photocatalytic Oxidation of Volatile Organic Compounds under UV and Visible Light
Chemical Engineering Journal. 2019. V.370. P.1440-1449. DOI: 10.1016/j.cej.2019.03.280 WOS Scopus РИНЦ РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 10 янв. 2019 г.
Принята к публикации: 29 мар. 2019 г.
Опубликована online: 3 апр. 2019 г.
Опубликована в печати: 1 авг. 2019 г.
Идентификаторы БД:
Web of science: WOS:000467387200123
Scopus: 2-s2.0-85063934102
РИНЦ: 38665530 | 41797141
Chemical Abstracts: 2019:694208
Chemical Abstracts (print): 170:529579
OpenAlex: W2932239112
Цитирование в БД:
БД Цитирований
Scopus 28
Web of science 27
РИНЦ 22
OpenAlex 31
Альметрики: