کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1528267 1511861 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The preparation of porous nano-TiO2 with high activity and the discussion of the cooperation photocatalysis mechanism
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
The preparation of porous nano-TiO2 with high activity and the discussion of the cooperation photocatalysis mechanism
چکیده انگلیسی

The material of porous nano-TiO2 was prepared with a new preparation method. The relations between the crystalloid and the size of TiO2 nanograin and the technics conditions were studied. The control of TiO2 nanograin was discussed initially. It has very high photocatalytic activity. The degradation rate of the methyl orange solutions (50 mg L−1) which were decomposed by nano-TiO2 in the irradiation of the ultraviolet high-voltage mercury lamp whose main wavelength is 365 nm only in 17 min was above 99.6%. After stopping irradiation, there is a degradation dark-reaction whose reaction rate is rapid at first and then slow down. The standpoint that in the anatase TiO2 there are thimbleful rutile TiO2 which could bring the cooperation photocatalysis degradation and improve its photocatalytic activity was first put forward.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 99, Issues 2–3, 10 October 2006, Pages 498–504
نویسندگان
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