【作者】 吴玉程； 汤文明； 刘君武； 王建民； 李广海； 李勇； 郑治祥； 张立德；

【Author】 WU Yu-cheng, TANG Wen-ming, LIU Jun-wu. WANG Jian-ming LI Guang-hai, LI Yong, ZHENG Zhi-xiang, ZHANG Li-de( Faculty of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui 230009. China; Institute of Solid State Physics, Chinese Academy of Sciences. Hefei. Anhui 230031, China)

【机构】 合肥工业大学材料科学与工程学院； 中国科学院固体物理研究所；

【摘要】 采用溶胶-凝胶方法,以钛酸丁酯为先驱体,冰醋酸为螯合剂,通过水解缩聚作用制备了纳米TiO2粉体,掺杂了钨元素对纳米TiO2进行改性.运用X射线衍射(XRD)和透射电镜(TEM)和光吸收等手段,研究了不同W掺杂量对TiO2相变和光催化活性的影响,确定了最佳的掺杂量和热处理温度.更多还原

【Abstract】 With HAC as complexation and Ti(OBu)4 as precursor, nano-sized TiO2 powder was prepared by sol-gel method. W element was introduced into the TiO2 precursor to improve the photocatalystic capacity. The microstructure of the nanostructured W/TiO2 photocatalytic powder and their photocatalystic capacity were investigated using XRD, TEM and optical adsorption etc. The optimum doping content and heat treatment temperature were determined.更多还原