金属卟啉类化合物特性及光催化机理与应用研究  

Properties and Photocatalytic Mechanism of Porphyrin and Metal Porphyrin

作　　者：王攀[1] 罗光富[1] 曹婷婷[1] 饶志[1] 方艳芬[1] 黄应平[1] 

机构地区：[1]三峡大学三峡库区生态环境教育部工程研究中心,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2011年第5期84-92,共9页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金(20877048);湖北省创新群体(2009CDA020);湖北省高等学校优秀中青年科技创新团队项目(T200703)

摘　　要：概述了卟啉及金属卟啉类化合物的合成、性质及相关应用,重点综述了卟啉及金属卟啉类化合物的光电特性和光电化学性质,包括光致电子转移、光激发能量转移和高价金属卟啉氧化物种形成等,归纳了其光催化作用机理,包括光致电子转移产生的对分子氧的活化机理(超氧阴离子自由基机理)、光激发能量转移导致基态三线态氧活化产生的单线态氧机理和高价氧化物种对分子氧和H2O2的活化产生具有高氧化活性自由基机理,并对异相光催化体系及光催化应用作了概括.This paper outlines the synthetic methods and some properties of porphyrins and their metal complexes;especially summarizes their principal optoelectric and photoelectrochemical properties such as photo-induced electron transfer and photo-excited energy transfer and the formation of high-valence metalloporphyrin oxygen species.The applications and the mechanisms of the photocatalysis are also generalized,namely the photo-induced electron-transfer mechanism,the activations of molecular oxygen by dye-sensitized mechanism（superoxide anion mechanism）,the photo-excited energy transfer mechanism that suggests how the triplet oxygen in ground state turns into the singlet oxygen,and the mechanism of activations of molecular oxygen and hydrogen peroxide by high-valence metal oxides in which free radicals with highly oxidative activities are supposed to be produced.Heterogeneous photocatalytic systems and applications of photocatalysis are also summarized.

关 键 词：金属卟啉 光催化 机理 综述 

分 类 号：O627[理学—有机化学] O644.1[理学—化学]