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Cu与非金属共掺杂对TiO_2光催化活性的影响

Research on photocatalytic active of copper and nonmetal doped TiO_2
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摘要 为了研究金属与非金属双掺杂改性TiO_2的光催化性能,选择催化性能较好的金属Cu和C、N、S三种非金属,采用溶胶凝胶法,进行掺杂降解实验,并对光催化样品进行XRD、SEM表征。结果表明:当Cu和Ti的物质量之比0.01、干燥温度60℃、焙烧温度500℃,且N和Ti的物质量之比为0.6时,Cu、N双掺杂TiO_2光催化降解罗丹明B溶液的降解效果最佳,降解率达到86%;当C和Ti的物质量之比为0.01时,Cu、C双掺杂TiO_2光催化降解罗丹明B溶液的降解效果最佳,降解率达到84.3%;当S和Ti的物质量之比为0.1时,Cu、S双掺杂TiO_2光催化降解罗丹明B溶液的降解效果最佳,降解率达到84.8%;光催化样品具有锐Ti矿晶相,粉体粒径小,粒度分布均匀。 This paper is concerned specifically with an investigation into the photocatalytic performance of metal and nonmetal doped TiO2. This study focuses on doping degradation experiment using metal Cu with a better catalytic performance,together with three kinds of nonmetals C,N,S and employing sol gel method; and XRD and SEM characterization of photocatalytic samples. The results indicate that( Cu、N) doped TiO2 gives the best catalytic performance and the degradation rate of 86%,in the case of the drying temperature of 60 ℃,calcination temperature of 500 ℃,n( Cu) / n( Ti) of 0. 01 and n( N) /n( Ti) of 0. 6;( Cu,C) doped TiO2 provides the best catalytic performance and the degradation rate of84. 3%,in the case of n( C) / n( Ti) of 0. 01;( Cu,S) doped TiO2 provides the best catalytic performance and the degradation rate of 84. 8%,in the case of n( S) / n( Ti) of 0. 1. Photocatalytic samples feature anatase phase type,small particle size and uniform particle size distribution.
出处 《黑龙江科技大学学报》 CAS 2016年第1期40-44,共5页 Journal of Heilongjiang University of Science And Technology
基金 黑龙江省自然科学基金项目(E201459)
关键词 TiO2 金属与非金属双掺杂 溶胶凝胶法 光催化降解 TiO2 sol-gel method metal and nonmetal doped photocatalytic degradation
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