| 光催化分解活性染料及其高效催化剂 |
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| 引用本文： | 丁敦煌,曾冬铭,唐兆麒,杨松青. 光催化分解活性染料及其高效催化剂[J]. 中南大学学报(自然科学版), 2002, 33(5): 480-483 |
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| 作者姓名： | 丁敦煌 曾冬铭 唐兆麒 杨松青 |
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| 作者单位： | 1. 中南大学,化学化工学院,湖南,长沙,410083
2. 中南大学,冶金科学与工程系,湖南,长沙,410083 |
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| 摘 要： | 以太阳光为光源、活性染料活性红为主要研究对象 ,研究了用光化学催化降解有机物的新方法及其催化机理 .研究结果表明 :光可激发H2 O2 的氧化反应 ,加快活性染料的氧化褪色速度 ;TiO2 粉末的光催化作用也较显著 ;一种廉价、无毒催化剂 (CHY)具有很强的光催化性能 ,在同等光照和pH值条件下 ,该催化剂对染料的褪色速度为H2 O2 的 3倍 ,TiO2 的 15倍 ,且与H2 O2 或 (和 )TiO2 具有协同作用 ,使染料的光解褪色速度进一步加快 .高效光催化剂CHY的发现为工业上合理利用太阳能 ,实现光化学降解有机污染的产业化提供了一条可行的新途径 .
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| 关 键 词： | 光催化 染料 废水处理 |
| 文章编号： | 1005-9792(2002)05-0480-04 |
| 修稿时间： | 2002-12-17 |
Degradation of active dyes by photo-catalysis and its effective catalyst |
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| DING Dun-huang,ZENG Dong-ming,TANG Zhao-gi,YANG Song-qing. Degradation of active dyes by photo-catalysis and its effective catalyst[J]. Journal of Central South University:Science and Technology, 2002, 33(5): 480-483 |
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| Authors: | DING Dun-huang ZENG Dong-ming TANG Zhao-gi YANG Song-qing |
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| Affiliation: | DING Dun-huang1,ZENG Dong-ming1,TANG Zhao-gi1,YANG Song-qing2 |
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| Abstract: | The degradation of active dyes by photocatalysis using solar energy was investigated. The results show that the oxidation of H_2O_2 can be activized by solar energy and therefore the degradation rate of active dyes is speeded. The photocatalysis is obvious for the degradation of active dyes with TiO_2 powder. Particularly, a cheap, nontoxic and very efficient catalyst(CHY) is found. Its catalytic rate is 15, 3 times faster than that of the very popular TiO_2 and H_2O_2, respectively. In addtion, CHY has synergetic effect with TiO_2 and H_2O_2. Because it is cheap, nontoxic and without the trouble for recovery, it is possible to combine CHY with other calalysts in a more effectctive and reasonable way to treat various organic effluents. |
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| Keywords: | photocatalysis dyes pollution treatment |
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