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.
出处
《环境化学》
CAS
CSCD
北大核心
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)
关键词
双酚E
分子识别
光催化降解
β-环糊精.
bisphenol E, photocatalytic degradation, β-cyclodextrin, molecular recognition.
