| TiO_2可见光催化H_2O_2降解水中的有机污染物 |
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| 引用本文： | 唐建军,范小江,邹原,刘淑君,周康根. TiO_2可见光催化H_2O_2降解水中的有机污染物[J]. 中国有色金属学报, 2011, 0(8) |
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| 作者姓名： | 唐建军 范小江 邹原 刘淑君 周康根 |
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| 作者单位： | 深圳职业技术学院深圳市工业节水与城市污水资源化技术重点实验室;中南大学冶金科学与工程学院; |
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| 基金项目： | 广东省自然科学基金资助项目(2409K3080018); 深圳市科技计划资助项目(07K164D0) |
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| 摘 要： | 以活性艳红X-3B及苯酚作模型污染物,研究催化剂晶型(锐钛矿和金红石)及H2O2对TiO2可见光催化性能的影响,并研究Fe3+在这一反应体系中的协同效应。结果表明:在H2O2存在条件下,锐钛矿和金红石TiO2均能可见光催化降解活性艳红X-3B,且TOC的去除率达65%,反应并不限于发色基团的破坏,但当TiO2的吸附点位吸附CO32?达到饱和后,则对活性艳红X-3B基本无降解效果;TiO2能可见光催化H2O2降解苯酚,金红石TiO2显示出较锐钛矿TiO2更高的催化活性,反应120 min后,对苯酚的降解率达80%,且反应体系生成的环状中间产物的浓度明显较锐钛矿TiO2的高;以Fe3+协同TiO2可见光催化H2O2降解苯酚时,反应效率显著加快,经20 min反应,对苯酚的降解率可达100%,而金红石TiO2显示更为明显的协同效应。
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| 关 键 词： | 可见光催化 二氧化钛 过氧化氢 协同效应 活性艳红X-3B 苯酚 |
Degradation of organic pollutants with H_2O_2 photocatalyzed by TiO_2 under visible irradiation |
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| TANG Jian-jun,FAN Xiao-jiang,ZOU Yuan,LIU Shu-jun,ZHOU Kang-gen. Degradation of organic pollutants with H_2O_2 photocatalyzed by TiO_2 under visible irradiation[J]. The Chinese Journal of Nonferrous Metals, 2011, 0(8) |
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| Authors: | TANG Jian-jun FAN Xiao-jiang ZOU Yuan LIU Shu-jun ZHOU Kang-gen |
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| Affiliation: | TANG Jian-jun1,FAN Xiao-jiang2,ZOU Yuan1,LIU Shu-jun2,ZHOU Kang-gen2(1.Shenzhen Key Laboratory of Industrial Water Conservation and Municipal Wastewater Resources Technology,Shenzhen Polytechnic,Shenzhen 518055,China,2.School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | The effects of crystalline structure(anatase and rutile) and H2O2 on TiO2 visible-light photocatalysis were studied,and the synergistic effect of Fe3+ in the reaction system was also studied using the reactive red X-3B and phenol as model pollutants.The results indicate that reactive brilliant red X-3B can be photocatalytic degradated by anatase or rutile TiO2 under visible-irradiation with H2O2 addition,the TOC removal rate can reach 65%,and the degradation process is not limited to the broke down of chrom... |
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| Keywords: | visible light photocatalysis titanium dioxide hydrogen peroxide synergistic effect reactive brilliant red X-3B phenol |
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