Influence of carbon and yttrium co-doping on the photocatalytic activity of mixed phase TiO_2
碳和钇共掺杂对混相TiO_2光催化性能的影响（英文）作者机构：nano Materials & Technology Yunnan University Kunming 650091 Yunnan China School of Materials Science and Engineering Yunnan Key Laboratory for Micro Kunming 650091 Yunnan China
出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)
年 卷 期：2017年第38卷第10期
页 面：1688-1696页
核心收录：
学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术]
基 金：supported by the National High Technology Research and Development Program of China(863 Program,2015AA034601) the Natural Science Foundation of Yunnan Province(2016FB084) the Scientific Research Foundation of the Department of Education of Yunnan Province(2015Z003) the Open Fund of Yunnan Key Laboratory for Micro/nano Materials&Technology(ZZ2016006)
主 题：Titanium dioxide Co‐doping Mixed phase Phase control Visible light photocatalysis
摘 要：Mixed phase TiO2photocatalysts doped with C and Y were synthesized by a sol‐gel *** effects of C and Y doping and annealing temperatures on the structural and optical properties,and photocatalytic activity were *** found that both C and Y doping can broaden the absorption spectrum of TiO2to the visible light region and inhibit recombination of photogenerated electron/hole *** incorporation of Y into the TiO2lattice inhibited growth of crystalline grains,which increased the specific surface area and enhanced the photocatalytic *** photocatalytic performance of the samples was investigated in the photocatalytic degradation of methyl blue under visible light *** rate of methyl blue degradation over the(C,Y)‐co‐doped TiO2sample was much higher than those of undoped TiO2,C‐TiO2,and Y‐***,the apparent first‐order rate constant of the co‐doped sample was3.5times as large as that of undoped mix phase TiO2under the same experimental *** enhanced photocatalytic activity can be attributed to the synergic effect of(C,Y)‐co‐doping and the formation of an appropriate crystalline structure.
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