α-Fe2O3/Pt hybrid nanorings and their enhanced photocatalytic activities

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	α-Fe2O3/Pt hybrid nanorings and their enhanced photocatalytic activities
	Liang, Hanfeng ; Jiang, Xinde ; Chen, Wei ; Wang, Shiqiang ; Xu, Binbin ; Wang, Zhoucheng ; Chen W(陈伟) ; Wang ZC(王周成)
刊名	http://dx.doi.org/10.1016/j.ceramint.2013.11.001
	2014
关键词	Azo dyes Degradation Hybrid systems Nanostructured materials Photocatalysis Platinum Redox reactions Transmission electron microscopy
英文摘要	In this paper, α-Fe2O3 nanorings were synthesized and used as a support to further synthesize hybrid Pt/α-Fe2O3 nanorings. Transmission electron microscopy (TEM) analyses clearly suggest that Pt nanoparticles are deposited on the surface of α-Fe2O3 nanorings in a well-dispersed state. This metal-semiconductor hybrid system is expected to show high photocatalytic activity towards the degradation of environmental pollutants. Because of the Schottky contact between semiconductor and metal particles, the holes prefer to localize in energetically lower semiconductor, whereas the electrons can move through the heterointerface. This interfacial charge transfer and separation facilitate the redox reactions, results in a high photocatalytic activity. In our case, the as obtained α-Fe 2O3/Pt hybrids exhibit enhanced photocatalytic performance with a degradation rate of 86.7% for methyl orange, which is much higher than that of pure α-Fe2O3 (33.2%). ? 2013 Elsevier Ltd and Techna Group S.r.l.
语种	英语
出版者	ELSEVIER SCI LTD
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89680]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Liang, Hanfeng,Jiang, Xinde,Chen, Wei,et al. α-Fe2O3/Pt hybrid nanorings and their enhanced photocatalytic activities[J]. http://dx.doi.org/10.1016/j.ceramint.2013.11.001,2014.
APA	Liang, Hanfeng.,Jiang, Xinde.,Chen, Wei.,Wang, Shiqiang.,Xu, Binbin.,...&王周成.(2014).α-Fe2O3/Pt hybrid nanorings and their enhanced photocatalytic activities.http://dx.doi.org/10.1016/j.ceramint.2013.11.001.
MLA	Liang, Hanfeng,et al."α-Fe2O3/Pt hybrid nanorings and their enhanced photocatalytic activities".http://dx.doi.org/10.1016/j.ceramint.2013.11.001 (2014).