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
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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.
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关键词:
- 双酚E,分子识别,光催化降解 /
- β-环糊精
Abstract: 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 7.83×103L·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.-
Key words:
- bisphenol E /
- photocatalytic degradation
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