کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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154044 | 456551 | 2007 | 7 صفحه PDF | دانلود رایگان |
Carbon-modified TiO2 catalysts were synthesized from tetrabutyl titanate and glycine by a solution combustion method. The catalysts were characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), XPS, UV–vis absorption and photocatalytic degradation of 4-chlorophenol (4-CP). The obtained catalysts show much high activities for degradation of 4-CP than that of Degussa P25 under irradiation at wavelengths longer than 400 nm. Hydroquinone (HQ), benzoquinone (BQ) and hydroxyhydroquinone (HHQ) were found to be the main intermediates of the photocatalytic 4-CP degradation with carbon-modified TiO2 by HPLC measurement. Moreover, the calcination time of synthesized TiO2 catalysts played a significant role in the photocatalytic activity.
Journal: Chemical Engineering Journal - Volume 128, Issues 2–3, 1 April 2007, Pages 127–133