کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
581133 | 1453157 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Controllable solvothermal synthesis and photocatalytic properties of complex (oxy)fluorides K2TiOF4, K3TiOF5, K7Ti4O4F7 and K2TiF6
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Complex (oxy)fluorides K2TiF6, K2TiOF4, K3TiOF5 and K7Ti4O4F7 have been successfully synthesized for the first time through a controllable solvothermal route involving different solvents, for example, methanol, methanol-H2O and methanol-H2O2. The as-prepared products were characterized by X-ray powder diffraction, N2 surface area adsorption, scanning electron microscope, Fourier transform infrared spectroscopy, UV-vis absorption spectra and X-ray fluorescence. The influences of reaction conditions such as the ratio of methanol to H2O2 or methanol to H2O, reaction temperature on the phase, crystallizability and purity of the (oxy)fluorides products were discussed in detail. Meanwhile, the photocatalytic behaviors of the as-prepared K2TiF6, K2TiOF4, K3TiOF5 and K7Ti4O4F7 were evaluated by degradation of rhodamine B molecules, and the results showed that all of the products possessed photocatalytic activities in the order of K2TiOF4Â >Â K2TiF6Â >Â K7Ti4O4F7Â >Â K3TiOF5 at room temperature under the UV light.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 171, Issues 1â3, 15 November 2009, Pages 279-287
Journal: Journal of Hazardous Materials - Volume 171, Issues 1â3, 15 November 2009, Pages 279-287
نویسندگان
Jie Sheng, Kaibin Tang, Wei Cheng, Junli Wang, Yanxiang Nie, Qing Yang,