| 1-(2-吡啶偶氮)-2-萘酚化学修饰TiO2的可见光活性研究 |
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| 引用本文： | 刘建华,王海军,廖义涛. 1-(2-吡啶偶氮)-2-萘酚化学修饰TiO2的可见光活性研究[J]. 广州化工, 2010, 38(5): 134-136 |
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| 作者姓名： | 刘建华 王海军 廖义涛 |
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| 作者单位： | 宜宾学院化学与化工系,四川,宜宾,644000;江南大学化工与材料工程学院,江苏,无锡,214122;江南大学化工与材料工程学院,江苏,无锡,214122;宜宾学院化学与化工系,四川,宜宾,644000 |
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| 摘 要： | 在低温(80℃)回流条件下制备1-(2-吡啶偶氮)-2-萘酚化学修饰的TiO2光催化剂。以偶氮染料刚果红溶液为降解体系,以太阳光为光源,探讨其光催化性能。结果证明:在太阳光照射下,1-(2-吡啶偶氮)-2-萘酚化学修饰的TiO2作为光催化剂,降解时间为5小时,刚果红的降解能达到70%以上。光催化制备过程中1-(2-吡啶偶氮)-2-萘酚、水量、pH值及温度对催化剂的光催化性能均有影响;该催化剂经过5次重复使用光催化效果仍保持较高。1-(2-吡啶偶氮)-2-萘酚化学修饰二氧化钛可以成功地实现了可见光下对有机污染物的光降解。
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| 关 键 词： | 低温制备 化学修饰 光催化 可见光 刚果红 |
Photocatalytic Performance of A Visible Light TiO2 Photocatalyst Prepared by Surface Chemical Modification Process with 1-(2-Pyridylazo)-2-Naphthol |
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| LIU Jian-hua,WANG Hai-jun,LIAO Yi-tao. Photocatalytic Performance of A Visible Light TiO2 Photocatalyst Prepared by Surface Chemical Modification Process with 1-(2-Pyridylazo)-2-Naphthol[J]. GuangZhou Chemical Industry and Technology, 2010, 38(5): 134-136 |
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| Authors: | LIU Jian-hua WANG Hai-jun LIAO Yi-tao |
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| Affiliation: | 1 Key Laboratory of Yangtze River Water Environment,Ministry of Education,Yibin University,Sichuan Yibin 644000;2 Department of Chemical and Material Engineering,Jiangnan University,Jiangsu Wuxi 214122,China) |
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| Abstract: | A visible light TiO2 photocatalyst was prepared by a surface chemical modification process with 1-（2-Pyridylazo）-2-Naphthol（PAN） at low temperature 80℃.Using the congo red as the model pollutant for dye wastewater,the decolorization efficiency and effects of the photocatalyst were studied.Results showed that the decolorization rate of congo red solution was more than 70% after 5h treatment.During the preparation of the TiO2 photo catalyst,the quantity of the PAN and water,the pH value and the temperature were very important,and the TiO2-PAN remained high catalytic activity after being reused and regenerated for 5 times.TiO2 modified with PAN can be used to achieve the photocatalytic degradation of coexiting organics under visible light irradiation. |
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| Keywords: | low temperature preparation chemical modification photocatalysis visible light congo red |
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