New titania-based photocatalysts for hydrogen production from aqueous-alcoholic solutions of methylene blue : научное издание | Научно-инновационный портал СФУ

New titania-based photocatalysts for hydrogen production from aqueous-alcoholic solutions of methylene blue : научное издание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1039/d0ra07630a

Аннотация: A series of CuOx-TiO(2)photocatalysts were prepared using fresh and thermally activated Evonik Aeroxide P25 titanium dioxide. The photocatalysts were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, X A series of CuOx-TiO2 photocatalysts were prepared using fresh and thermally activated Evonik Aeroxide P25 titanium dioxide. The photocatalysts were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, XANES, diffuse reflectance spectroscopy, and N2 adsorption technique. Photocatalytic activity of the samples was tested in hydrogen production from aqueous-alcoholic solutions of methylene blue under UV radiation (λ = 386 nm). It was found for the first time the synergistic effect of hydrogen production from two substrates - dye and ethanol. The maximum hydrogen production rate in the system water-ethanol-methylene blue was 1 μmol min-1, which is 25 times higher than a value measured in a 10% solution of ethanol in water. The thermal activation of titania also leads to a change in the rate of hydrogen production. The highest catalytic activity was observed for a CuOx-TiO2 photocatalyst based on titania thermally-activated at 600 °C in air. A mechanism of the photocatalytic reaction is discussed. This journal is © 2020 The Royal Society of Chemistry.

Ссылки на полный текст

Издание

Журнал: RSC ADVANCES

Выпуск журнала: Vol. 10, Is. 56

Номера страниц: 34137-34148

ISSN журнала: 20462069

Место издания: CAMBRIDGE

Издатель: ROYAL SOC CHEMISTRY

Авторы

  • Markovskaya Dina (Boreskov Inst Catalysis, Fed Res Ctr, Lavrentiev Ave 5, Novosibirsk 630090, Russia)
  • Zhurenok Angelina (Boreskov Inst Catalysis, Fed Res Ctr, Lavrentiev Ave 5, Novosibirsk 630090, Russia)
  • Kurenkova Anna Yu (Boreskov Inst Catalysis, Fed Res Ctr, Lavrentiev Ave 5, Novosibirsk 630090, Russia)
  • Kremneva Anna M. (Boreskov Inst Catalysis, Fed Res Ctr, Lavrentiev Ave 5, Novosibirsk 630090, Russia)
  • Saraev Andrey A. (Boreskov Inst Catalysis, Fed Res Ctr, Lavrentiev Ave 5, Novosibirsk 630090, Russia)
  • Zharkov Sergey M. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia; Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
  • Kozlova Ekaterina A. (Boreskov Inst Catalysis, Fed Res Ctr, Lavrentiev Ave 5, Novosibirsk 630090, Russia)
  • Kaichev Vasily V. (Boreskov Inst Catalysis, Fed Res Ctr, Lavrentiev Ave 5, Novosibirsk 630090, Russia)

Вхождение в базы данных

Информация о публикациях загружается с сайта службы поддержки публикационной активности СФУ. Сообщите, если заметили неточности.

Вы можете отметить интересные фрагменты текста, которые будут доступны по уникальной ссылке в адресной строке браузера.