کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1491757 992359 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photocatalytic performance of pure anatase nanocrystallite TiO2 synthesized under low temperature hydrothermal conditions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Photocatalytic performance of pure anatase nanocrystallite TiO2 synthesized under low temperature hydrothermal conditions
چکیده انگلیسی

Photocatalytic performance of a hydrothermally synthesized pure anatase TiO2 with 8 nm average crystallite size for decomposition of Reactive Red 141 was examined by investigating the effects of UV-light irradiation time, irradiation power, amount of TiO2 and initial dye concentration. Change in the UV absorbance of the dye during irradiation was monitored. One wt.% TiO2 in 30 mg/l Reactive Red 141 aqueous solution was found adequate for complete decolorization in 70 min at 770 W/m2 irradiation power. It was realized that, compared to Degussa P-25, the synthesized nano-TiO2 can be repeatedly used as a new catalyst. The results also proved that Reactive Red 141 is decomposed catalytically due to the pseudo first-order reaction kinetics.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 41, Issue 12, 14 December 2006, Pages 2276–2285
نویسندگان
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