| 太阳光/硫掺杂Tio2体系对双酚A的氧化性能研究 |
| 摘要点击 1464 全文点击 1184 投稿时间：2008-07-04 修订日期：2008-10-20 |
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| 中文关键词 太阳光催化氧化；双酚A 硫掺杂Tio2 |
| 英文关键词 solar catalyzed oxidation bisphonelA S-doped titanium dioxde |
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| 中文摘要 |
| 利用小试试验研究了太阳光和硫(s)掺杂Tio2体系对水中双酚A(BPA)的降解效能及影响因素.结果表明，太阳光/S掺杂Tio2体系对纯水中BPA的去除效能较太阳光 |
| 英文摘要 |
| ti Key faboratoo'of integrated Regulation and Resource Development Slmllow fakes，MittisW of Education，Holmi Universily，NⅢing2l()098，China；2 College of Environmental Science and Technology，Hohm U~tiversity，Nanjing 210098，China)Abstract：Removal efficiency and influencing factors of bisphenol A by the combined process of solar irradiation and S-doped TiO；were studiedin detail，in which S-doped Ti02 photo-catalyst with high activity was prepared by acid catalyzed hydrolysis method using thiourea as sulfursource Results showed that bisphenol A could be more effectively oxidized by the solar/S-doped Ti02 process than by solar/TiOe process，whose removal effect were 79％and 49％aller 30 min’s irradiation，respectively Pseado-first-order modd could be used t0 sinlulate theoxidation process in which the degradation rate coefficients were independent of the initial concentration of bisphenol A Degradation rate couldbe greatly affected by the concentration ofH2O2，and the optimum concentration for the system of solar/S-doped TiOe Was found to be 20 lng/L，which was 5 mg/L higher than that of solar/Ti02 system Lower water pH favored the degradation of bisphenol A，whose degradation ratecoefficients at pH 5.5 were about 50％higher than that at pH 8.5 Humic acids decreased both the degradation rate of the two processes'andthe iulluence could be filled by second-order equation in addition，solar/S—doped Ti02 process wos more cosily affected，for the himaic acidscould not only compete with lnolecular bisphenol—A for radicals but also adsorb part of visible sunlight which can excite radical with TiO2
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