Journal of Inorganic Materials ›› 2011, Vol. 26 ›› Issue (5): 513-516.DOI: 10.3724/SP.J.1077.2011.00513

• Research Paper • Previous Articles     Next Articles

Preparation of Visible Light-driven Photocatalyst K4Ce2Nb10O30 by Polymerizable Complex Process and Its Photocatalytical Activity for Water Decomposition

TIAN Meng-Kui1, SHANGGUAN Wen-Feng2   

  1. (1. School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550003, China; 2. Research Centre for Combustion and Environmental Technology, School of Power and Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)
  • Received:2010-07-21 Revised:2010-10-13 Published:2011-05-20 Online:2011-06-07
  • Supported by:

    National Key Basic Research and Development Program (2009CB220004); Key Project for Society Development, Guizhou Province (SZ[2008]3008); Key Project of Science and Technology, Guiyang City([2008] 014); Program for Talent Induced, Guizhou Province(017[2007])

Abstract: Visible light-driven photocatalyst K4Ce2Nb10O30 was prepared by polymerizable complex (PC) process  using dissolvable niobium oxalate as precursor. Characterizations of XRD, BET, SEM and UV-Vis showed that the sample prepared from PC process presented smaller particles (20-50 nm) and higher specific surface areas than the sample from conventional high temperature solid state reaction (SSR) method. As for their photocatalytical activities for water decomposition under visible light irradiation (λ > 400 nm), the sample prepared by PC method showed higher H2 evolution activities than that of sample prepared by SSR as a result of the higher surface areas and finer crystal particles of sample prepared by PC. Moreover, the sample prepared by PC methods realized the overall pure water splitting under λ > 300 nm irradiation condition.

Key words: polymerizable complex process, visible light-driven, K4Ce2Nb10O30, water decomposition by photocatalysis

CLC Number: