高纯金属酞菁的制备及其对TiO_2光催化性能的影响研究

Effect on photocatalysed property of TiO_2 thin film by the preparation of high-purity metal phthalocyanin

通过简易的溶液沉淀分离方法制得了纯度>97%的高纯金属酞菁的二甲基亚砜(DMSO)溶液。应用制得产物对TiO2 薄膜进行敏化,发现经酞菁铁(FePc)、酞菁钴(CoPc)、双核酞菁钴铁(CoFePc)敏化的TiO2 薄膜的光催化性能分别较未经敏化的TiO2薄膜提高67.3%、63.0%、16.1%,并通过一系列的对比实验解释了双核酞菁钴铁催化效率低于前两者的原因,为后继利用酞菁敏化TiO2 及其它光催化材料提供借鉴。

A simple method was provided to purify the metal phthalocyanin. FePc, CoPc and CoFePc with purity higher than 97% were obtained by using DMSO as the solvent. The metal phthalocyanin sensitized TiO2 films exhibited higher photocatalytic activity than that of TiO2 film without phthalocyanin sensitization. Furthermore, dicaryon phthalocyanine sensitized TiO2 films showed lower photocatalytic activity that that of mononuclear phthalocyanin, which can be ascribed to their poor electron transfer ability.