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β-环糊精强化二氧化钛光催化降解双酚F研究
Enhancement of β-cyclodextrin on Photocatalytic Degradation of Bisphenol F
【摘要】 研究了双酚F在β-环糊精存在的TiO2光催化体系中的光降解行为,结果表明:双酚F能与β-环糊精形成1:1稳定的包结物,其包结常数为6.33×103L/mol,β-环糊精可以使双酚F的光催化降解效率可以提高21%,同时研究了双酚F光降解的动力学规律及pH、β-环糊精浓度、双酚F初始浓度对双酚F的光催化降解的影响。β-环糊精对双酚F光催化降解的强化作用源于β-环糊精促进双酚F在TiO2表面的吸附。
【Abstract】 TiO2 photocatalytic degradation of bisphenol F(BPF)in the presence ofβ-cyclodextrin(β-CD)was investigated.Results showed that BPF can form 1:1 inclusion complex withβ-CD,with formation constant of 6.33×103L/mol.β-CD can increase photodegradation efficiency by about 21%.The effect of pH value,initial concentration of BPF and concentration ofβ-CD as well as kinetics analysis was studied, and the enhancement of photodegradation of BFP mainly resulted from the enhancement of adsorption of BPF on TiO2 surface.
【关键词】 双酚F;
β-环糊精;
光催化降解;
强化;
【Key words】 bisphenol F(BPF); β-cyclodextrin(β-CD); photocatalytic degradation; enhancement;
【Key words】 bisphenol F(BPF); β-cyclodextrin(β-CD); photocatalytic degradation; enhancement;
【基金】 江西省教育厅资助项目(赣教技字[2006]212号)
- 【文献出处】 环境科学与技术 ,Environmental Science & Technology , 编辑部邮箱 ,2007年09期
- 【分类号】X132
- 【被引频次】2
- 【下载频次】381