Ni^(2+)掺杂对TiO_2薄膜光催化性能和亲水性的影响  

Ni^(2+) Doped TiO_2 Thin Films and Its Photocatalysis and Hydrophilic Properties

作　　者：高松华[1] 高立华[1] 

机构地区：[1]三明学院物理与机电工程系,福建三明365004

出　　处：《三明学院学报》2011年第2期32-36,共5页Journal of Sanming University

基　　金：福建省教育厅自然科学基金项目(JA10268);三明市科技计划项目(2009-G-4)

摘　　要：采用sol-gel法制备了锐钛矿型TiO2薄膜与Ni2+掺杂TiO2薄膜。通过XRD、AFM表征了薄膜的晶相和形貌特征,用接触角测定仪测定接触角以评估薄膜的亲水性,以甲基橙作为有机污染物研究了薄膜的光催化性能。实验结果发现:少量Ni2+掺杂提高了TiO2薄膜的亲水性和光致亲水性。但Ni2+掺杂却使TiO2光催化性能有所降低。结果表明,TiO2薄膜表面的光致亲水性与光催化特性无正相关性。TiO2 anatase and Ni2＋ doped TiO2 thin films were prepared by sol-gel processing.The effects of Ni2＋ doped TiO2 thin films content on the photocatalysis and hydrophilic properties were studied by analyzing XRD,AFM,contact angle and the degradation rate of methyl orange.It was found that the optimal photo-induced hydrophilicity properties were obtained by containing 2.0% Ni2＋,but it decreased the photocatalysis properties.The results indicate that there is no positive correlation between the photo-induced hydrophilicity and the photocatalysis of TiO2 thin films.

关 键 词：TIO2薄膜 光催化性能 光致亲水性 

分 类 号：O484[理学—固体物理]