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Mechanism of Photo-Fenton Degradation of Ethanol and PVA 被引量：2

Mechanism of Photo-Fenton Degradation of Ethanol and PVA
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摘要 Contrast degradation experiments between ethanol and polyvinyl alcohol (PVA) were conducted during H2O2, UV/H2O2, Fenton, and Photo-Fenton processes in this study. UV/VIS spectra showed' that complexes between Fe(Ⅲ) and organics were easily formed and degraded within reaction time. Compared with ,the degradation of complex, hydroxyl radicals acted weakly in Fenton or Photo-Fenton process. Hydroxyl radi'cals involved in Photo-Fenton process were deemed to be generated from the split decomposition of H2O2, photolysis of Fe_aq^3+, and degradation of hydrated Fe(Ⅳ)-complex but not traditional Fenton reaction. Experimental evidence to support this point was presented in this paper. Contrast degradation experiments between ethanol and polyvinyl alcohol (PVA) were conducted during H2O2, UV/H2O2, Fenton, and Photo-Fenton processes in this study. UV/VIS spectra showed: that complexes between Fe(Ⅲ) and organics were easily formed and degraded within reaction time. Compared with.the degradation of complex, hydroxyl radicals acted weakly in Fenton or Photo-Fenton process. Hydroxyl radicals involved in Photo-Fenton process were deemed to be generated from the split decomposition of H202, photolysis of Feaq^3+, and degradation of hydrated Fe(IV)-complex but not traditional Fenton reaction. Experimental evidence to support this point was presented in this paper.
作者 雷乐成 沈学优 何锋
机构地区 Department of Environmental Engineering
出处 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2003年第5期577-582,共6页 中国化学工程学报（英文版）
基金 National Natural Science Foundation of China(No.20176053)
关键词 MECHANISM Fenton reaction OXIDATION 乙醇 PVA Fenton反应 降解机理 聚氯乙烯 废水处理 氢氧自由基 有机化合物 铁 催化剂
分类号 O621 [理学—有机化学]
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Chinese Journal of Chemical Engineering
2003年 第5期

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