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Journal of Nanomaterials
Volume 2015, Article ID 821986, 7 pages
Research Article

Synthesis, Characterization, and Photocatalytic Activity of g-C3N4/KTaO3 Composites under Visible Light Irradiation

1TU-NIMS Joint Research Center and Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China
2Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 92 Weijin Road, Nankai District, Tianjin 300072, China
3Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Received 2 October 2014; Accepted 3 December 2014

Academic Editor: Chee Kiang Ivan Tan

Copyright © 2015 Zhiqing Yong 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.


Novel graphitic carbon nitride/KTaO3 (g-C3N4/KTaO3) nanocomposite photocatalysts have been successfully synthesized via a facile and simple ultrasonic dispersion method. Compared to either g-C3N4 or KTaO3, the composite photocatalysts show significantly increased photocatalytic activity for degradation of Rhodamine B (RhB) under visible light irradiation. The increased photocatalytic performance of the composite could be attributed to the enhanced photogenerated charge carrier separation capacity. Moreover, it is observed that is the main active species in the photocatalytic degradation of RhB using the g-C3N4/KTaO3 composite photocatalysts.