非金属(C,N,S)掺杂TiO_2降解罗丹明B的实验研究  

Study on photocatalytic degradation of rhodamine B by using non-metallic(C, N, S) doped titanium dioxide

作　　者：李桂春[1] 尼亚琼 康华[1] 王爱卿[2] 庄国锋[1] 柴社居 

机构地区：[1]黑龙江科技大学矿业工程学院,哈尔滨150022 [2]黑龙江工业学院环境工程系,黑龙江鸡西158100

出　　处：《黑龙江科技大学学报》2015年第6期627-632,共6页Journal of Heilongjiang University of Science And Technology

基　　金：黑龙江省普通高等学校矿物加工工程重点实验室开放课题(2013-KF10)

摘　　要：以钛酸四丁酯为钛源、尿素为氮源、葡萄糖为碳源、硫脲为硫源,采用溶胶凝胶法,制备催化剂样品,并对样品进行光催化降解实验,以及XRD、SEM表征。结果表明:干燥温度80℃、N和Ti的量之比为0.6、焙烧温度为600℃时,N掺杂TiO_2的催化性能最佳,降解率达到64.5%;C和Ti的量之比为0.01、焙烧温度为500℃时,C掺杂TiO_2的催化性能最佳,降解率达63.5%;S和Ti的量之比为0.1、焙烧温度为600℃时,S掺杂TiO_2的催化性能最佳,降解率达64.2%。催化剂样品具有锐钛矿晶型,颗粒分散,粒度分布均匀。This paper introduces the preparation of catalyst samples applying the sol-gel method and using tetrabutyl titanate as Titanium source, urea as nitrogen source, glucose as carbon source, thiourea as precursors; and the photocatalytic degradation of the samples and the characterization of SEM and XRD.The results demonstrate that nitrogen doped TiO2 provides the best catalytic performance and the degradation rate of 64.5% as in the case of the drying temperature of 80 ℃, n（ N） /n（ Ti） of 0.6, and calcination temperature of 600 ℃; carbon doped titanium dioxide offers the best catalytic performance and the degradation rate（63.5%） as in the case of molar ratio of n（C）/n（Ti）（0.010, and calcination temperature of500 ℃; and sulfur doped TiO2 gives the best catalytic performance and the degradation rate of 64.2% as in the case of molar ratio of n（S）/n（Ti）（0.1）, and the calcination temperature of 600 ℃. The catalyst samples prepared in this way are of the anatase crystal type and boast more dispersed particles and more uniform particle size.

关 键 词：溶胶凝胶法 非金属掺杂 TIO2 光催化降解 

分 类 号：TB333[一般工业技术—材料科学与工程] O643.36[理学—物理化学]