کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9608064 | 46039 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of anatase TiO2 supported on alumina by different metal organic chemical vapor deposition methods
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Two kinds of metal organic chemical vapor deposition (MOCVD) approaches have been employed for the preparation of the photocatalyst of titanium dioxide supported on alumina. One was simultaneous deposition and calcinations, i.e. a one-step process; the other was preliminary gas impregnation of the support followed by a decomposition step, i.e. a two-step process. The results of characterization indicated that the structure of the support was destroyed by a two-step process because of pore blocking. It was found that the one-step process resulted in a superior photocatalyst; this was attributed to higher external surface concentration and more perfect crystalline structure of TiO2. TiO2/Al2O3 catalysts showed good repeatability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 282, Issues 1â2, 30 March 2005, Pages 285-293
Journal: Applied Catalysis A: General - Volume 282, Issues 1â2, 30 March 2005, Pages 285-293
نویسندگان
Xingwang Zhang, Minghua Zhou, Lecheng Lei,