Fast photocatalytic degradation of rhodamine B over [Mo6Br8(N3)6]2- cluster units under sun light irradiation

被引:78
作者
Barras, Alexandre [1 ]
Cordier, Stephane [2 ]
Boukherroub, Rabah [1 ]
机构
[1] Univ Lille 1, IRI, CNRS, USR 3078, F-59658 Villeneuve Dascq, France
[2] Univ Rennes 1, Inst Sci Chim Rennes, CNRS, Equipe Chim Solide & Mat,UR1 6226,CS 74205, F-35042 Rennes, France
关键词
Mo(6)Br8(N-3)(6)](2-) cluster unit; Rhodamine B; Photodegradation; Sun light; PHOTOASSISTED DEGRADATION; METALLIC CLUSTERS; HALIDE CLUSTERS; DYE POLLUTANTS; NANOPARTICLES; DEETHYLATION; ADSORPTION; ELECTRODE;
D O I
10.1016/j.apcatb.2012.04.006
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The paper reports on the high photocatalytic activity of [Mo6Br8(N-3)(6)](2-) cluster units for the degradation of rhodamine B under UV, visible or sun light irradiation. Water soluble Na-2[Mo6Br8(N-3)(6)] inorganic compound built up from [Mo6Br8(N-3)(6)](2-) anionic cluster units associated with Na+ counter cations investigated in this work is prepared in high yield by the interaction of Mo6Br12 with sodium azide in methanol. The high photocatalytic performance of the molybdenum cluster is demonstrated under real solar light excitation, suggesting that the photocatalyst could be used in broad daylight hours. Furthermore, the cluster is still highly active after ten successive cycling runs under UV or visible light irradiation without any apparent loss of its efficiency. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 8
页数:8
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