کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5147967 | 1497362 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoelectrochemical analysis of band gap modulated TiO2 for photocatalytic water splitting
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photoelectrochemical analysis of band gap modulated TiO2 for photocatalytic water splitting Photoelectrochemical analysis of band gap modulated TiO2 for photocatalytic water splitting](/preview/png/5147967.png)
چکیده انگلیسی
Scheme depicting the mechanism of electron hole pair formation using TiO2-APTMS-FA for water splitting. The band gap energy Eg of TiO2 is 3.2 eV. Photons with energy larger than the HOMO/OV-LUMO gap (ħÏ1 > 2.0 eV) get absorbed by OV/APTMS/FA. Note that the HOMO state is hybridized with the OV band of TiO2 at the surface. The holes that are left behind in the HOMO/OV state are filled by e-h pair generation from the TiO2 valence band (VB) to the HOMO-OV state by photons (ħÏ2 > 2.5 eV). Regular e-h pair generation in the conduction band (CB) and VB takes place through absorption of photons with ħÏ3 > Eg. The green parts of the band bending represent the extra potential barrier coming due to the surface modifications.181
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 15, 13 April 2017, Pages 9938-9944
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 15, 13 April 2017, Pages 9938-9944
نویسندگان
Shashank Saraf, Manuel Giraldo, Hari P. Paudel, Tamil S. Sakthivel, Cathrine Shepard, Ankur Gupta, Michael N. Leuenberger, Sudipta Seal,