双酚E在分子识别作用下的光催化降解  

PHOTOCATALYTIC DEGRADATION OF BISPHENOL E BASED ON MOLECULAR RECOGNITION

作　　者：王光辉[1] 吴峰[1] 邓南圣[1] 

机构地区：[1]武汉大学资源与环境学院

出　　处：《环境化学》2006年第4期458-461,共4页Environmental Chemistry

基　　金：国家自然科学基金资助项目(20477031)

摘　　要：研究了经分子识别后的双酚E在TiO2光催化体系中的光降解行为,结果表明:双酚E能与β-环糊精形成稳定的包结物,其包结常数为7.83×103L.mol-1,经β-环糊精分子识别后双酚E的光催化降解效率可以提高26%,同时研究了双酚E光降解的动力学规律及pH值和β-环糊精浓度对双酚E光降解的影响.β-环糊精对双酚E光催化降解的促进作用源于β-环糊精促进双酚E在TiO2表面的吸附.Photocatalytic degradation of bisphenol E based on molecular recognition was investigated in the system containing TiO2. The results show that BPE can form stable inclusion complex with β-cyclodextrin （β-CD） and its formation constant is 7.83 × 10^3L · mol^-1. β-CD could increase the photodegradation efficiency by about 26% for BPE because of molecular recognition interaction. The effect of pH, initial concentration of BPE and β-CD concentration were evaluated and kinetics analysis was conducted. The enhancement of photodegradation of BPE results from the enhancement of adsorption of BPE on TiO2surface.

关 键 词：双酚E 分子识别 光催化降解 β-环糊精. 

分 类 号：X132[环境科学与工程—环境科学]