| 非离子表面活性剂存在下光催化降解有机颜料 |
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| 引用本文： | 张天永,扈娟,柴义,张友兰,赵进才. 非离子表面活性剂存在下光催化降解有机颜料[J]. 分子催化, 2007, 21(2): 149-154 |
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| 作者姓名： | 张天永 扈娟 柴义 张友兰 赵进才 |
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| 作者单位： | 1. 天津大学,化工学院,天津,300072
2. 中国科学院化学研究所,分子科学中心光化学重点实验室,北京,100080 |
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| 基金项目： | 教育部留学回国人员科研启动基金(教外司留[2002]247)，中国科学院化学研究所光化学重点实验室开放基金，天津市自然科学基金(033604711). |
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| 摘 要： | 研究了加入非离子表面活性剂OP-10时有机颜料光催化降解过程,实验选用的颜料为艳红6B(C.I.Pigment Red482),以高压汞灯为光源,TiO2为催化剂.通过改变水溶液的pH值和OP-10的浓度,考察了颜料和OP-10各自的降解特性.实验结果表明,酸性条件下,OP-10的存在明显加快了颜料的降解,碱性条件下反而抑制了颜料的降解.中性条件下,OP-10的增溶对体系的降解有一定影响,浓度为0.126g/L(2.5cmc)时,颜料和OP-10降解效果最好.
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| 关 键 词： | 光催化氧化 有机颜料 二氧化钛 紫外光 OP-10 |
| 文章编号： | 1001-3555(2007)02-0149-06 |
| 修稿时间： | 2006-01-09 |
Study of Photocatalytic Degradation of Organic Pigment in the Presence of Nonionic Surfactant |
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| ZHANG Tian-yong,HU Juan,CHAI Yi,ZHANG You-lan,ZHAO Jin-cai. Study of Photocatalytic Degradation of Organic Pigment in the Presence of Nonionic Surfactant[J]. Journal of Molecular Catalysis (China), 2007, 21(2): 149-154 |
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| Authors: | ZHANG Tian-yong HU Juan CHAI Yi ZHANG You-lan ZHAO Jin-cai |
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| Affiliation: | 1. School of Chemical Engineering and Technology, Tianfin University, Tianjin 300072, China; 2. Key Laboratory of Photochemistry, Center for Molecular Science, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | The present thesis is related to the photocatalytic degradation process of an organic pigment, for example, C. I. Pigment Red 48: 2(R6B), in the presence of photo catalyst TiO2 under irradiation of high pressure Hg lamp. Added with nonionic surfactant OP-10, the experiments were mainly focused on the effects of pH in aqueous solution, concentration of OP-10 on the degradation process of R6B and OP-10. The experimental results showed that OP-10 improved remarkably the degradation rate of R6B in acidic media while lowered the degradation rate in alkaline media. In neutral conditions, OP-10 enhanced the solubility of R6B/TiO2 system, which sightly affected the degradation process. Especially in case of 0.126 g/L (2.5 cmc), a better conversion trend of R6B and OP-10 occurred. |
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| Keywords: | Photocatalytic oxidation Organic pigment Titanium dioxide Ultraviolet light OP-10 |
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