Pd-TiO_2/ITO膜的制备及催化活性研究  

Preparation and Catalytic Activities of Pd-TiO_2/ITO Film

作　　者：谢宝平[1] 熊亚[1] 陈润铭[1] 张汉霞[1] 蔡沛祥[1] 

机构地区：[1]中山大学化学与化学工程学院,广州510275

出　　处：《广州化工》2005年第1期22-27,共6页GuangZhou Chemical Industry

基　　金：国家自然科学基金项目 (2 0 2 770 4 6);广东省自然科学基金项目 (0 4 0 0 971 3)

摘　　要：采用提拉 -光化学还原法制备了Pd -TiO2 /ITO催化膜 ,用XRD、SEM、紫外 -可见吸收光谱和光电流对Pd -TiO2 /ITO光电催化膜进行了表征 ,以甲酸为对象考察了Pd -TiO2 /ITO膜在不同条件下催化氧化有机污染物的活性。结果表明 ,与纯TiO2 /ITO膜相比 ,Pd -TiO2 /ITO膜不仅具有很高的光催化和光电催化活性 ,同时还表现出常温常压下对甲酸降解的非光催化活性。Pd-TiO 2/ITO films are preparedby a dip-coating and subsequent photo-deposition procedure. The Pd-TiO 2/ITO film is well characterized by X-ray diffraction, scanning electron microscope, UV-vis diffuse reflectance spectra and photocurrent. The catalytic activity of the composite film is investigated by using catalytic oxidation of formic acid as a model reaction. The results showed that the Pd-TiO 2/ITO film not only possess higher photocatalytic and photoelectrocatalytic activities, compared with bared ...

关 键 词：钯 二氧化钛 光催化 非光催化 光电催化 甲酸 

分 类 号：O643.3[理学—物理化学]