电纺制备TiO_2纳米线及煅烧对其光催化性能的影响  

Preparation of TiO_2 nanofibres and influence of calcination temperature on photocatalytic activity

作　　者：陈莹莹[1] 侯建梅[1] 张溪文[1] 韩高荣[1] 

机构地区：[1]浙江大学材料与化工学院无机非金属材料研究所,杭州310027

出　　处：《粉末冶金材料科学与工程》2008年第6期352-355,共4页Materials Science and Engineering of Powder Metallurgy

基　　金：国家自然科学基金资助项目(50772098)"锐钛矿相大孔掺氮二氧化钛薄膜的大气压等离子体化学气相沉积及其光催化活性研究"

摘　　要：以聚乙烯吡咯烷酮(PVP)为络合剂,与钛酸丁酯Ti(OC4H9)4反应制得前驱体溶液,采用静电纺丝法制备PVP/Ti(OC4H9)4纳米线,再在不同温度(350℃、400℃、450℃)下煅烧,得到具有光催化性能的TiO2纳米线。采用XRD、FTIR、SEM对所制备的材料进行表征,并通过对罗丹明B溶液的降解研究探讨烧煅烧温度对TiO2纳米线光催化性能的影响。结果表明,采用该方法成功制备了具有光催化性能的TiO2纳米线,当煅烧温度为400℃时,纳米线的光催化性能最好,光催化率达到56.92%。The TiO2 nanofibres with photocatalytic efficiency are prepared by sol-gel and electrospinning methods as well as calcined at different temperatures （350, 400 and 450℃, respectively） with Ti（OC4Hg）4 and PVP as raw materials. The structures and morphologies of the TiO2 fibers are characterized by scanning electron microscopy and X-ray diffraction, both FTIR and photocatalytic measurements on Rhodamine B solution are performed to investigate the effect of calcinate temperature on photocatalytic efficiency. Results show that the photocatalytic TiO2 fibres are obtained, and the TiO2 fibres calcined at 400 ℃ possess the optimal photocatalytic efficiency （photocatylytic rate reaches 56.92%） in all the prepared samples.

关 键 词：静电纺丝 TIO2 纳米线 光催化 

分 类 号：TQ134.11[化学工程—无机化工]