کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5361162 | 1388270 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of annealing temperature on the photocatalytic activity of WO3 for O2 evolution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Commercial WO3 powder was annealed in air at four different temperatures and characterized by XRD and BET. The samples were used for the photooxidation of H2O to O2 under visible light irradiation (λ > 420 nm) in the presence of IO3â and the evolved gases were analyzed by gas chromatography. The results showed that the WO3 photocatalyst of monoclinic phase, which was obtained by annealing at 750 °C for 4 h, displayed the best activity in terms of O2 evolution among all the samples. Moreover, the activity was also found to be slightly affected by the grain size of the WO3 samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 1, 15 October 2009, Pages 165-169
Journal: Applied Surface Science - Volume 256, Issue 1, 15 October 2009, Pages 165-169
نویسندگان
Gang Xin, Wei Guo, Tingli Ma,