Issue 5, 2014

Designed hierarchical synthesis of ring-shaped Bi2WO6@CeO2 hybrid nanoparticle aggregates for photocatalytic detoxification of cyanide

Abstract

Ring-shaped Bi2WO6@CeO2 hybrid nanoparticle aggregates are fabricated through an environmental route and subsequent facile calcinations. The synthetic parameters are regulated to control the shape of the as-prepared samples. The concentration of the cyanide ion decreased sharply from the initial 4.72 mM to 0.95 mM with the exposure time of 60 min. The intrinsic ring-shaped microstructure results in multiple reflections of light within the chamber, allowing more efficient use of the light source compared with a solid structure. The p–n junction effect can lead to enhanced charge separation and interfacial charge transfer efficiency due to the existence of an internal electric field. Therefore, it exhibits a remarkable photocatalytic detoxification of cyanide and degradation of dye under visible light.

Graphical abstract: Designed hierarchical synthesis of ring-shaped Bi2WO6@CeO2 hybrid nanoparticle aggregates for photocatalytic detoxification of cyanide

Supplementary files

Article information

Article type
Paper
Submitted
14 Jan 2014
Accepted
28 Jan 2014
First published
28 Jan 2014

Green Chem., 2014,16, 2539-2545

Author version available

Designed hierarchical synthesis of ring-shaped Bi2WO6@CeO2 hybrid nanoparticle aggregates for photocatalytic detoxification of cyanide

H. Guo, Y. Guo, L. Liu, T. Li, W. Wang, W. Chen and J. Chen, Green Chem., 2014, 16, 2539 DOI: 10.1039/C4GC00065J

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