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Journal of Nanomaterials
Volume 2015, Article ID 724942, 7 pages
Research Article

Synthesis of the ZnGa2S4 Nanocrystals and Their Visible-Light Photocatalytic Degradation Property

1Department of Chemistry, Changchun Normal University, Changchun 130032, China
2College of Environment and Resources, Jilin University, Changchun 130023, China
3Northeast Coal Industry Environmental Research Ltd of Jilin, Changchun 130062, China

Received 21 July 2014; Accepted 8 September 2014

Academic Editor: Weihang Zhou

Copyright © 2015 Ding Peng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Nanostructured ZnGa2S4 with indirect band gap was prepared by a simple thiourea reduction method. As-prepared samples were characterized by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), and UV-Vis diffuse reflectance spectra (UV-Vis). The visible-light photocatalytic activity of the ZnGa2S4 was evaluated by the degradation of methylene blue (MB) aqueous solution. The high photoactivities of ZnGa2S4 can be attributed to the small band gap and large surface area, which is beneficial for degradation of pollutants and enhancement of transfer of photogenerated carriers.