A Highly Efficient and Stable Visible-Light Plasmonic Photocatalyst Ag-AgCl/CeO 2
A Highly Efficient and Stable Visible-Light Plasmonic Photocatalyst Ag-AgCl/CeO 2
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DOI：
10.4236/wjnse.2011.14019
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发表时间：
2011-12
期刊：
影响因子：
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通讯作者：
Hongjuan Wang;Lini Yang;Hao Yu;F. Peng
中科院分区：
文献类型：
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作者：
Hongjuan Wang;Lini Yang;Hao Yu;F. Peng
贵金属银纳米粒子具有独特的表面等离子体共振特性，近年来在纳米材料领域引起了广泛的关注。结合纳米Ag和半导体CeO 2的优点，采用一种简单的方法制备了新型等离子体光催化剂Ag-AgCl/CeO 2。所制备的样品，其特征在于使用扫描和透射电子显微镜，X射线光电子能谱和紫外-可见扩散光谱？透射光谱学该金属-半导体纳米复合等离子体光催化剂对水中的甲基橙橙子具有较高的可见光催化活性和良好的稳定性。Ag-AgCl/CeO 2等离子体光催化剂在有机污染物降解和水净化方面具有广阔的应用前景。
Noble metal Ag nanoparticles with unique surface plasmon resonance property have attracted much attention recently in the field of photocatalysis. Based on the advantages of Ag nanoparticles and semiconductor CeO2, a novel plasmonic photocatalyst Ag-AgCl/CeO2 was prepared with a facile route. The as-prepared samples were characterized using scanning and transmission electron microscopy, X-ray photoelectron spectroscopy and UV-vis diffusion re?ection spectroscopy. This metal-semiconductor nanocomposite plasmonic photocatalyst exhibited a high visible-light photocatalytic activity and good stability for photocatalytic degradation of methyl orange in water. Ag-AgCl/CeO2 will be a potentially promising plasmonic photocatalysts for organic pollutant degradation and water purification.