| 菲在TiO2催化下的光降解研究 |
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| 引用本文： | 文晟,赵进才,盛国英,傅家谟,彭平安.菲在TiO2催化下的光降解研究[J].影像科学与光化学,2002,20(6):405-410. |
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| 作者姓名： | 文晟 赵进才 盛国英 傅家谟 彭平安 |
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| 作者单位： | 1. 中国科学院, 广州地球化学研究所, 有机地球化学国家重点实验室, 广东省环境资源利用与保护重点实验室, 广州, 510640;2. 中国科学院, 化学研究所, 北京, 100080 |
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| 基金项目： | 国家自然科学基金，国家重点实验室基金 |
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| 摘 要： | 以汞灯为光源,TiO2为催化剂,对菲的光催化降解途径进行了研究.将水溶性极小的菲预先吸附到TiO2上之后,菲可以在紫外线的照射下发生快速、完全的矿化.通过GC-MS手段检测到一些中间产物,给出了菲光催化降解的详细途径.另外,研究了菲在表面活性剂十六烷基三甲基溴化铵(HTAB)的助溶下TiO2催化的光降解过程,探讨了表面活性剂的浓度和溶液pH值对反应速率的影响.
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| 关 键 词： | 菲 TiO2 光降解 十六烷基三甲基溴化铵 |
| 收稿时间： | 2002-03-18 |
PHOTODEGRADATION OF PHENANTHRENE CATALYZED BY TIO2 |
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| WEN Sheng,ZHAO Jin-cai,SHENG Guo-ying,FU Jia-mo,PENG Ping-an.PHOTODEGRADATION OF PHENANTHRENE CATALYZED BY TIO2[J].Imaging Science and Photochemistry,2002,20(6):405-410. |
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| Authors: | WEN Sheng ZHAO Jin-cai SHENG Guo-ying FU Jia-mo PENG Ping-an |
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| Institution: | 1. State Key Laboratory of Organic Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guangdong Key Lab of Environment Protection and Resources Utilization, Guangzhou 510640, P. R. China;2. Laboratory of Photochemistry, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China |
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| Abstract: | The photocatalytic oxidation of phenanthrene was investigated in aqueous TiO 2 suspensions under UV light irradiation.The phenanthrene was preadsorbed on TiO 2 and underwent a fast and complete mineralization.In the process,some intermediate products were detected by GC MS,the pathway of phenanthrene degradation was described.In another system,a cationic surfactant hexadecytrimethylammonium bromide(HTAB) was used to increase the solubility of phenanthrene and to accelerate the photooxidation of phenanthrene,the effect of concentration of HTAB and pH was also studied. |
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| Keywords: | TiO2 |
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