TiO_2纳晶多孔薄膜的制备及性能研究  

Preparation and Performance of Nano-crystal TiO_2 Porous Film

作　　者：于大勇[1] 

机构地区：[1]辽宁石油化工大学石油化工学院,抚顺113001

出　　处：《精细石油化工进展》2005年第6期41-43,48,共4页Advances in Fine Petrochemicals

摘　　要：以钛酸四丁酯和二乙醇胺为原料,无水乙醇为溶剂,采用溶胶-凝胶法制备了TiO_2纳晶多孔薄膜,考察了制备过程中水加量和焙烧温度等因素对TiO_2纳晶多孔薄膜性能和结构的影响。以邻苯二甲酸酐与金属锶盐为原料,钼酸铵为催化剂,合成了酞菁锶及其磺化物。用磺化酞菁锶敏化TiO_2纳晶多孔薄膜并用紫外-可见光谱进行表征,结果表明,敏化后的TiO_2薄膜的吸收峰覆盖了整个可见光区,从而大大提高太阳光的利用率。Nano-crystal TiO_2 porous film was prepared by sol-gel method,using tetra-n-butyl titanate and diethanolamine as materials and absolute alcohol as solvent.The effects of amount of water and roasting temperature on the performance and structure of the TiO_2 film were investigated.Phthalocyanine strontium (SrPC) and its sul- fonated derivative (SrTSPC) were synthesized from phthalic anhydride and strontium salt using ammonium molybdate as catasyst. The TiO_2 film was sensitized with SrTSPC and was characterized by UV-visible light spectroscopy.The results showed that the absorbing apices of the sensitized TiO_2 film covered the whole visible light zone and the utilizing effi- ciency of solar energy was improved.

关 键 词：TiO2纳晶多孔薄膜 制备方法 溶胶-凝胶法 半导体纳米结构材料 量子尺寸效应 比表面积 高度多孔性 

分 类 号：TQ134.11[化学工程—无机化工]