Cr/S/TiO2- LOADED HOLLOW GLASS MICROSPHERES AS AN EFFICIENT AND RECYCLABLE CATALYST FOR THE PHOTOCATALYTIC DEGRADATION OF INDIGO CARMINE UNDER VISIBLE LIGHT

文献类型： 外文期刊

第一作者： Zhang, Xiuli

作者： Zhang, Xiuli;Yin, Yidong;Sun, Zhibo;Ma, Shichao;Wu, Yan;Du, Yingqiu

作者机构：

关键词： hollow glass microspheres;visible light;indigo carmine;TiO2;photocatalytic degradation

期刊名称：QUIMICA NOVA （ 影响因子：0.961； 五年影响因子：1.091 ）

ISSN： 0100-4042

年卷期： 2016 年 39 卷 8 期

页码：

收录情况： SCI

摘要： Chromium and sulfur co-doped nanometer TiO2 hollow glass microspheres (Cr/S/TiO2-HGM) were synthesized by a sol-gel method. Characterization used X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), N-2 adsorption-desorption (Brunauer-Emmett-Teller (BET) measurements) and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity was evaluated by photodegradation of indigo carmine in an aqueous solution under visible light irradiation. The results indicated that the Cr/S/TiO2 containing 0.60% (atomic ratio) chromium and 1.2% (atomic ratio) sulfur calcined at 500 degrees C for 2 h had high catalytic efficiency under visible light irradiation. The floating Cr/S/TiO2-HGM catalyst had greater photocatalytic activity than Cr/S/TiO2 powder. Therefore, Cr/S/TiO2-HGM is a promising, high-performing, visible-light-driven, and more reusable photocatalyst.

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