Enhanced visible light photocatalytic degradation of Rhodamine B by Bi/Bi2MoO6 hollow microsphere composites

被引：29

作者：

Li, Jinliang ^{[1
]}

Liu, Xinjuan ^{[2
]}

Pan, Likun ^{[1
]}

Qin, Wei ^{[1
]}

Sun, Zhuo ^{[1
]}

机构：

[1] E China Normal Univ, Dept Phys, Shanghai Key Lab Magnet Resonance, Engn Res Ctr Nanophoton & Adv Instrument,Minist E, Shanghai 200062, Peoples R China

[2] China Jiliang Univ, Coll Mat Sci & Engn, Ctr Coordinat Bond & Elect Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

RSC ADVANCES | 2014年 / 4卷 / 107期

基金：

中国国家自然科学基金;

关键词：

GRAPHENE OXIDE COMPOSITES; MICROWAVE-ASSISTED SYNTHESIS; ONE-STEP SYNTHESIS; HIERARCHICAL HETEROSTRUCTURES; PARTICLE-SIZE; SPHERES; BI2MOO6; TIO2; PERFORMANCE; SCATTERING;

D O I：

10.1039/c4ra09830g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bi/Bi2MoO6 hollow microsphere (BMO-HMS) composites were successfully synthesized via a microwave-assisted reaction of a Bi2MoO6 precursor in an ethylene glycol solution using a microwave synthesis system and subsequent annealing in a nitrogen atmosphere. The morphology, structure and photocatalytic performance of the composites in the degradation of Rhodamine B (RhB) were characterized by scanning electron microscopy, X-ray diffraction, electrochemical impedance spectra, UV-vis absorption spectroscopy, Raman spectroscopy and nitrogen adsorption-desorption, respectively. The results show that the BMO-HMS composites exhibit enhanced photocatalytic performance in the degradation of RhB with a maximum degradation rate of 91% under visible light irradiation compared with the pure Bi2MoO6. The improved photocatalytic performance is ascribed to the enhanced light absorption and the reduced electron-hole pair recombination with the presence of Bi in the composites.

引用

页码：62387 / 62392

页数：6

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