کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
45213 46407 2016 5 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Visible-light-sensitive two-step overall water-splitting based on band structure control of titanium dioxide
ترجمه فارسی عنوان
بر اساس کنترل ساختار باند دی اکسید تیتانیوم، دو قطعه کلی تقسیم آب قابل مشاهده است
کلمات کلیدی
دی اکسید تیتانیوم؛ نور مرئی؛ تقسیم آب به طور کلی؛ تحریک دو مرحله ای
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• We established a novel two-step overall water-splitting system.
• The system is composed of two types of TiO2-based photocatalysts.
• The band structure of TiO2 was controlled to be sensitive to visible light.
• The photocatalytic system simultaneously evolves H2 and O2 under only visible light.

Visible light-induced two-step overall water splitting was achieved by combining two types of photocatalysts, which were prepared by introducing foreign elements into titanium dioxide (TiO2) with a controlled electronic band structure. Rutile and anatase TiO2 were doped with chromium and tantalum to introduce visible-light sensitivity. Under irradiation with only visible light from a 420-nm LED lamp, the simultaneous liberation of hydrogen and oxygen with a molar ratio of ∼2:1 was achieved with these two types of TiO2-based photocatalysts in the presence of iodate ion/iodide ion as a redox mediator.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 180, January 2016, Pages 1–5
نویسندگان
, ,