【摘要】 采用改进的溶胶-凝胶法令TiO2在普通玻璃载玻片表面浸渍提拉成膜,再经150℃热处理15min。用阶梯厚度仪、XRD、SEM、XPS、AFM、UV-vis吸收光谱和降解亚甲基蓝实验对所成薄膜的厚度、晶粒大小、表面形貌、吸光性和光催化性能进行了表征。研究结果表明:薄膜为类微晶玻璃态,其纳米粒子晶型为单一锐钛矿型,粒径在10~50nm,薄膜表面均匀、致密,具有良好紫外-可见吸收性和光催化活性。更多还原

【Abstract】 The TiO2 thin film prepared by an improved sol-gel processing and then dip-coating on a glass substrate was sintered at 150℃ for 15min.The grain size,the thickness,the surface property,and the absorbency in UV-vis spectra of the film were characterized by a surface profile and methods of X-ray diffraction,scanning electron microscopy,atomic force microscopy,X-ray photoelectron spectroscopy,UV-vis spectrophotometry and decomposition of methylene bule.The film is identified as pure anatase,the grain size is around 10-50nm and the surface of the film is even and compact,the film shows high light absorption in UV-vis spectra and has high photocatalytic decomposition rates of methylene bule.更多还原