| 几种环境激素酞酸酯的光催化降解研究 |
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| 引用本文： | 费学宁,吕岩,张天永.几种环境激素酞酸酯的光催化降解研究[J].环境化学,2006,25(5):567-571. |
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| 作者姓名： | 费学宁 吕岩 张天永 |
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| 作者单位： | 天津城市建设学院环境工程系,天津,300384;天津大学化工学院,天津,300072 |
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| 基金项目： | 天津市自然科学基金
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建设部科技攻关项目 |
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| 摘 要： | 在紫外光照射下,以TiO2为催化剂,研究邻苯二甲酸二丁酯(DBP)、邻苯二甲酸二环己酯(DCHP)和邻苯二甲酸丁基苄基酯(BBP)水溶液的光催化降解规律,不同结构特征的酞酸酯在降解过程中pH值均表现为先升高,再降低的趋势.降解为表观一级反应.采用色质联用技术(GC-MS)分别对上述物质降解过程中生成的中间体进行分析,提出了可能的降解机理.
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| 关 键 词： | 酞酸酯 二氧化钛 光催化降解 环境激素 |
| 收稿时间： | 2005-11-18 |
| 修稿时间： | 2005-11-18 |
STUDY ON PHOTOCATALYTIC DEGRADATION OF SOME ENVIRONMENTAL HORMONE PAE |
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| FEI Xue-ning,LU Yan,ZHANG Tian-yong.STUDY ON PHOTOCATALYTIC DEGRADATION OF SOME ENVIRONMENTAL HORMONE PAE[J].Environmental Chemistry,2006,25(5):567-571. |
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| Authors: | FEI Xue-ning LU Yan ZHANG Tian-yong |
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| Institution: | 1. Department of Municipal and Environmental Engineering, TIUC, Tianjin, 300384 China; 2. School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072 China |
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| Abstract: | The photocatalytic degradation rules of phthalic acid esters(PAE)such as DBP(dibutyl phthalate),DCHP(dicyclohexyl phthalate) and BBP(butyl benzyl phthalate) were studied in aqueous TiO_(2) dispersions under UV irradiation.The pH shows ascending firstly then falling in every photocatalytic reaction system.The experiment shows that the photocatalytic degradation of PAE was pseudo first-order reaction kinetics.The(intermediates) of degradation were analyzed by GCMS and the possible degradation mechanism was proposed. |
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| Keywords: | phthalic acid esters TiO2 photocatalytic degradation environmental hormone |
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