论文部分内容阅读
用溶胶-凝胶法在FTO(SnO_2:F)低辐射(low-e)镀膜玻璃衬底上旋涂制备TiO_2薄膜,获得FTO/TiO_2双层结构复合薄膜,采用扫描电镜(SEM)、X射线衍射(XRD)、紫外可见光谱(UV-Vis)、傅里叶变换红外光谱(FTIR)等手段分析样品。结果表明,当TiO_2薄膜的厚度为210nm左右时,FTO/TiO_2复合薄膜具有最佳的光催化活性。FTO/TiO_2复合薄膜与水滴的接触角随着紫外线照射时间的增加逐渐降低,表明复合薄膜在紫外线照射后具有较好的亲水性。TiO_2薄膜对FTO基底起到保护作用,热处理后的复合薄膜仍具有较好的低辐射性能。当FTO/TiO_2复合薄膜的TiO_2层厚度为210nm时,复合薄膜同时具有较好的自清洁性能和低辐射性能。
TiO 2 thin films were spin-coated on FTO (SnO 2: F) low-e coated glass substrates by sol-gel method to obtain double-layer structure of FTO / TiO 2 composite films. Scanning electron microscopy XRD, UV-Vis, FTIR and so on. The results show that when the thickness of TiO_2 film is about 210nm, the FTO / TiO_2 composite film has the best photocatalytic activity. The contact angle of FTO / TiO 2 composite film with water drops gradually decreases with the increase of UV irradiation time, indicating that the composite film has good hydrophilicity after UV irradiation. TiO 2 film plays a protective role on the FTO substrate, and the heat-treated composite film still has good low-emissivity properties. When the thickness of the TiO 2 layer of the FTO / TiO 2 composite film is 210 nm, the composite film has good self-cleaning property and low radiation performance at the same time.