کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5364111 | 1388311 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel Ce, C-codoped TiO2 nanoparticles and its photocatalytic activity under visible light
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A novel Ce, C-codoped TiO2 nanoparticles and its photocatalytic activity under visible light A novel Ce, C-codoped TiO2 nanoparticles and its photocatalytic activity under visible light](/preview/png/5364111.png)
چکیده انگلیسی
A novel photocatalyst (Ce, C-codoped titania) was synthesized through a modified sol-gel method under mild condition. The as-prepared sample was investigated by XRD, SEM, DRS and XPS. It was found that the as-prepared photocatalyst was composed of spheroidal particles, which were smaller than undoped ones. The absorbance spectrum of Ce, C-codoped TiO2 exhibited significant red-shift to visible region. It can be ascribed to appearance of a new electronic state in the middle of the TiO2 band-gap. Furthermore, cerium doping could slow the radiative recombination process of photogenerated electrons and holes in TiO2. Accordingly, for degradation of dye Reactive Brillint Red X-3B (C.I. reactive red 2) under visible light, the photocatalytic activity of Ce, C-codoped TiO2 improved much compared to other samples (C-doped TiO2, undoped TiO2 and P25).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 3, 15 November 2009, Pages 884-888
Journal: Applied Surface Science - Volume 256, Issue 3, 15 November 2009, Pages 884-888
نویسندگان
Jingjing Xu, Yanhui Ao, Degang Fu,