کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5366237 | 1388346 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evolution of photo-catalytic properties of reactive plasma processed nano-crystalline titanium dioxide powder
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Nano-crystalline titanium oxide powder was synthesized by reactive plasma processing using titanium hydride as the precursor powder. Photo-catalytic properties of the product were evaluated by monitoring the degradation of methylene blue dye solution. The photo-catalytic activity of plasma-synthesized nano-sized titania powder could be enhanced considerably by incorporating surface Ti3+ sites and hydroxyl groups. Thermal treatment of the as-synthesized powder in flowing Ar-H2 helped to incorporate surface Ti3+ and hydroxyl species, resulting in considerable increase in the catalytic activity. Subsequent hydrothermal treatment of the powder led to a five-fold increase in the photo-catalytic activity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 255, Issue 23, 15 September 2009, Pages 9316-9322
Journal: Applied Surface Science - Volume 255, Issue 23, 15 September 2009, Pages 9316-9322
نویسندگان
M. Vijay, P.V. Ananthapadmanabhan, K.P. Sreekumar,