Enhanced photocatalytic activity of ZnO/CuO nanocomposite for the degradation of textile dye on visible light illumination
Enhanced photocatalytic activity of ZnO/CuO nanocomposite for the degradation of textile dye on visible light illumination
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DOI：
10.1016/j.msec.2012.08.011
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发表时间：
2013-01-01
影响因子：
7.9
通讯作者：
Stephen, A.
中科院分区：
文献类型：
--
作者：
Saravanan, R.;Karthikeyan, S.;Stephen, A.
在可见光照射下，研究了不同配比的复合催化剂对亚甲基蓝、甲基橙子等有机染料的光催化降解。采用新的热分解法制备了催化剂ZnO纳米棒和不同质量比的ZnO/CuO纳米复合材料，该方法简单、成本低。采用X射线衍射、透射电子显微镜、场发射扫描电子显微镜、傅立叶变换红外光谱和紫外-可见吸收光谱等技术对催化剂进行了表征。此外，最具光催化活性的复合材料用于在可见光照射下降解真实的纺织废水。通过总有机碳和化学需氧量分析辐照样品。对催化剂的效率和光催化机理进行了详细的讨论。(c)2012爱思唯尔有限公司版权所有。
The photocatalytic degradation of organic dyes such as methylene blue and methyl orange in the presence of various percentages of composite catalyst under visible light irradiation was carried out. The catalyst ZnO nanorods and ZnO/CuO nanocomposites of different weight ratios were prepared by new thermal decomposition method, which is simple and cost effective. The prepared catalysts were characterized by different techniques such as X-ray diffraction, transmission electron microscopy, field emission scanning electron microscopy, Fourier transform infrared spectroscopy and UV-visible absorption spectroscopy. Further, the most photocatalytically active composite material was used for degradation of real textile waste water under visible light illumination. The irradiated samples were analysed by total organic carbon and chemical oxygen demand. The efficiency of the catalyst and their photocatalytic mechanism has been discussed in detail. (c) 2012 Elsevier B.V. All rights reserved.