Sol-gel旋涂法制备纳米TiO2薄膜及其双亲性能研究  

Research on Preparation of TiO_2 Film by Sol-gel Process with Spin-coating Technology and Its Hydrophilic-Lipophilic Property

作　　者：戴剑锋[1,2] 李扬[1] 王青[1,2] 李维学[1,2] 吴中立[1] 

机构地区：[1]兰州理工大学理学院应用物理系,兰州730050 [2]兰州理工大学有色金属新材料省部共建国家重点实验室,兰州730050

出　　处：《材料导报》2008年第1期124-126,共3页Materials Reports

基　　金：甘肃省自然科学基金项目(3ZS062-B25-020)

摘　　要：采用溶胶-凝胶法,利用旋涂技术在玻璃表面制备了膜厚小于100nm的纳米TiO_2薄膜,以去离子水和苯作为水和油模型,利用XRD、AFM系统研究了煅烧温度、粒径及膜厚对薄膜双亲性的影响。结果表明:煅烧温度强烈影响TiO_2薄膜的双亲性,煅烧温度为550℃时双亲性最佳;减小粒径和增加膜厚都有利于TiO_2薄膜双亲性的提高,当膜厚大于85nm后双亲性趋于稳定。Nanometer scale TiO2 films are prepared on glass substrates with film thickness less than 100nm by sol-gel process combining with spin-coating technology. The photoinduced hydrophilic-lipophilic property of TiO2 film obtained is investigated by XRD and AFM with H2O and C6H6 as models. The parameters such as annealing temperature, crystal size, film thickness affecting the hydrophilic-lipophilic property are systematically studied. The results show that the annealing temperature is the important factor strongly affecting the hydrophilic-lipophilic property. The best hydrophilic-lipophilic property is obtained when the annealing temperature is 550℃. In addition, it is found that the hydrophilic-lipophilic property is improved with the decreas of the crystal size and the increase of the film thickness, and it finally goes invariable when the film thickness is over 85nm.

关 键 词：TIO2薄膜 溶胶-凝胶法 旋涂技术 双亲性 苯 

分 类 号：TQ134[化学工程—无机化工]