锐钛矿型TiO_2纳米棒薄膜的溶胶-凝胶法制备研究  

Preparation and Characterization of Anatase TiO_2 Nanorods by Sol-Gel Method

作　　者：那日苏[1] 周炳卿[1] 郝丽媛[1] 王立娟[1] 韩兵[1] 

机构地区：[1]内蒙古师范大学物理与电子信息学院功能材料物理与化学自治区重点实验室,呼和浩特010022

出　　处：《材料导报（纳米与新材料专辑）》2011年第1期104-106,共3页

基　　金：国家自然科学基金资助项目(50662003);内蒙古自然科学基金资助项目(2009MS0806)

摘　　要：以钛酸丁酯Ti(OC_4H_9)_4、冰醋酸、去离子水和聚乙二醇(PEG)1000为原料,采用溶胶-凝胶法和旋转涂膜工艺,在玻璃衬底上制备出锐钛矿型TiO_2纳米棒。利用X射线衍射仪(XRD)、SEM和紫外可见光谱(UV/Vis)对TiO_2纳米棒薄膜进行了表征。结果表明,实验制备的TiO_2纳米棒为锐钛矿晶型,在TiO_2反应体系中,胶体粒子在加热过程中偶联在一起,1h后形成了TiO_2纳米棒,其直径为30～50nm,长度为100～200nm。同时,在42mL钛的胶体溶液中添加0.30g PEG(1000)后,纳米TiO_2薄膜的可见光透射峰值降低,TiO_2薄膜表面孔径为20～50nm。Using [Ti（OC4H9）4], CH3COOH, H20 and PEG（1000） as raw materials, anatase TiO2 nanorods were prepared on glass substrate by sol-gel method. The anatase TiO2 nanorods were characterized by XRD, SEM and UV-Vis spectra. The results show that the prepared titanium dioxide nanorods are the anatase crystal phase. In the TiO2 reacting system, after heating the particles couple together and then form TiO2 nanorods after lb. The diameter and length of TiOz nanord is 30-50nrn and 100-200nm approximately, respectively. At the same time, after adding 0. 30g PEG to the 42mL titanium colloidal solution, the visible absorption peak of nanometer TiO2 thin film increases, and the surface aperture scope of titanium dioxide thin film reach 20-50nm.

关 键 词：纳米二氧化钛 纳米棒 溶胶-凝胶法 

分 类 号：TB383[一般工业技术—材料科学与工程]