二氧化钛纳米管的修饰与性能研究  

Modification and Properties of Titanium Dioxide Nanotubes

作　　者：汪秀[1] 胡维 王宏伟[1] WANG Xiu;HU Wei;WANG Hongwei(Tongcheng Teachers College, Tongcheng 231400, China)

机构地区：[1]桐城师范高等专科学校,安徽桐城231400

出　　处：《太原学院学报（自然科学版）》2019年第1期10-13,共4页Journal of TaiYuan University:Natural Science Edition

基　　金：安徽省质量工程教学研究重点项目(2016jyxm1046);桐城师范高等专科学校校级质量工程教学研究重点项目(XJY2017A05)

摘　　要：采用四氯化钛水解法和液相沉积法对二氧化钛纳米管进行了表面修饰,以期制备出具有更好光电流响应的电极材料,考察了水解时间和液相沉积时间对纳米管表面微观形貌和光催化性能的影响。结果表明,光电流并没有随着水解时间的延长而呈现单调递增的特征,在水解时间为30min时的光电流提高幅度最大;在沉积时间为30min、60min和90min时,饱和光电流相较于30min和15min水解修饰二氧化钛纳米管电极的都有所降低,饱和光电流基本都在25μA以下;经过30min水解修饰的二氧化钛纳米管具有最佳的光催化性能,在葡萄糖溶液中的化学需氧量(COD)测试极限为230mg/L。Titanium tetrachloride hydrolysis method and liquid phase deposition method were used to modify the surface of titanium dioxide nanotubes in order to prepare better photocurrent response electrode materials. The effects of hydrolysis time and liquid phase deposition time on the surface morphology and photocatalytic properties of nanotubes were investigated. The results showed that the photocurrent did not increase monotonously with the prolongation of hydrolysis time. The photocurrent increased most when the hydrolysis time was 30 min, 60 min and 90 min. The saturated photocurrent decreased compared with the 30 min and 15 min hydrolysis modified titanium dioxide nanotube electrodes, and the saturated photocurrent was basically below 25 μA after 30 min, 60 min and 90 min. Hydrolysis-modified titanium dioxide nanotubes have the best photocatalytic activity, and the COD limit in glucose solution is 230 mg/L.

关 键 词：二氧化钛 纳米管 水解法 液相沉积法 修饰 

分 类 号：TQ134.11[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]