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TiO₂薄膜光催化剂的性能研究

Studies on the properties of TiO₂ thin film photocatalysts

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【Author】 LIU Xiuhua~1,FU Yibei~1,XU Zili~2,DENG Yi~1(1.Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,Sichuan,China;2.School of Environmental and Resources,Jilin University,Changchun 130012,Jilin,China)

【机构】中国工程物理研究院核物理与化学研究所；吉林大学环境与资源学院；中国工程物理研究院核物理与化学研究所四川绵阳621900；四川绵阳621900；吉林长春130012；

【摘要】采用溶胶-凝胶法在玻璃管上制备了透明的TiO2薄膜,并利用XRD、Raman、UV-V is和XPS技术对薄膜进行了表征。结果表明,在773 K焙烧的TiO2样品在290~330 nm处的吸收明显强于573 K焙烧的样品。在573 K焙烧的情况下,薄膜基本为非晶态,但却表现出良好的光催化活性,并随着负载层数的增加,薄膜的光催化活性逐渐增加。在573 K以上,随焙烧温度的升高,TiO2薄膜的光催化活性逐渐降低。更多还原

【Abstract】 Transparent TiO₂ thin films were prepared by sol-gel method on the surface of glass pipes and characterized by XRD,Raman, UV-Vis and XPS.The results showed that absorption（at 290-330 nm） of the samples calcined at 773 K was obviously stronger that those calcined at 573 K.The thin films calcined at 573 K were amorphous,but exhibited good photocatalytic activity,and the photocatalytic activity increased with the coated layers.For the films calcined above 573 K,the photocatalytic activity increased with rising calcination temperature.更多还原