| TiO_2光催化降解水溶液中的4-氯苯酚 |
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| 引用本文： | 唐建军,邓爱华.TiO_2光催化降解水溶液中的4-氯苯酚[J].应用化工,2006,35(12):924-926,930. |
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| 作者姓名： | 唐建军 邓爱华 |
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| 作者单位： | 深圳职业技术学院,建筑与环境工程学院,广东,深圳,518055 |
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| 基金项目： | 广东省深圳市科技局科研项目 |
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| 摘 要： | 采用HPLC、UV-V is、IC、TOC等分析手段,研究了TiO2光催化降解水溶液中的4-氯苯酚,并对4-氯苯酚的紫外光解、光催化降解及在线臭氧协同光催化降解三者的效率进行了比较。结果表明,在光催化降解过程中,溶液中的4-氯苯酚浓度呈指数减小,TOC浓度呈线性减小,降解过程中C l-不断释放出来,生成了一些不含氯的中间产物;降解反应进行90 m in,紫外光解对溶液中的4-氯苯酚及TOC的去除率为15%和6%,光催化分别为81%和60%,而在线臭氧协同光催化则分别高达95%和72%。
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| 关 键 词： | 4-氯苯酚 在线臭氧 光催化 |
| 文章编号： | 1671-3206（2006）12-0924-03 |
| 收稿时间： | 2006-08-23 |
| 修稿时间： | 2006-08-23 |
Degradation of 4-chlorophenol by TiO2 photocatalysis |
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| TANG Jian-jun,DENG Ai-hua.Degradation of 4-chlorophenol by TiO2 photocatalysis[J].Applied chemical industry,2006,35(12):924-926,930. |
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| Authors: | TANG Jian-jun DENG Ai-hua |
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| Affiliation: | School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, China |
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| Abstract: | Photocatalysis degradation of 4-chlorophenol by HPLC,UV-Vis,IC and TOC analysis was studied in this paper,and the degradation efficiency of UV spectra,TiO_2 photocatalysis(P25/UV) and online ozone-photocatalysis(O_3/P25/UV) was also carried.The results indicated that 4-chlorophenol and TOC concentration decreased continuously in photocatalytic degradation process,and chloride ion was released out,some intermediate without chloride appeared in the degradation process.4-Chlorophenol and TOC degradation efficiency by UV were only 15% and 6% respectively,those of P25/UV were 81% and 60%,however,those of O_3/P25/UV could reach 95% and 72% respectively. |
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| Keywords: | 4-chlorophenol online ozone photocatalysis |
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