Research on Chemical Intermediates

, Volume 33, Issue 6, pp 487–500 | Cite as

Structural characterization and photocatalytic properties of novel Bi2FeVO7

  • Jingfei Luan
  • Hongling Cai
  • Xiping Hao
  • Jibiao Zhang
  • Guoyou Luan
  • Xiaoshan Wu
  • Zhigang Zou
Article

Abstract

Bi2FeVO7 was prepared by a solid-state reaction technique for the first time and the structural and photocatalytic properties of Bi2FeVO7 were studied. The results shows that this compound crystallized in the tetragonal crystal system with space group I4/mmm. Moreover, the band gap of Bi2FeVO7 was estimated to be about 2.22(6) eV. For the photocatalytic water splitting reaction, H2 or O2 evolution was observed from pure water with Bi2FeVO7 as the photocatalyst by ultraviolet light irradiation. Degradation of aqueous methylene blue (MB) dye by photocatalytic way over this compound was further studied under visible light irradiation. Bi2FeVO7 shows higher catalytic activity compared to TiO2 (P-25) for MB photocatalytic degradation under visible light irradiation. Complete removal of aqueous MB was realized after visible light irradiation for 170 min with Bi2FeVO7 as the photocatalyst. The reduction of the total organic carbon (TOC) and the formation of inorganic products, SO42− and NO3 revealed the continuous mineralization of aqueous MB during the photocatalytic course.

Keywords

Photocatalyst Bi2FeVO7 structural characterization photocatalytic properties photocatalytic water splitting reaction photocatalytic degradation 

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Copyright information

© VSP 2007

Authors and Affiliations

  • Jingfei Luan
    • 1
  • Hongling Cai
    • 2
  • Xiping Hao
    • 2
  • Jibiao Zhang
    • 1
  • Guoyou Luan
    • 3
  • Xiaoshan Wu
    • 2
  • Zhigang Zou
    • 4
  1. 1.State Key Laboratory of Pollution Control and Resource Reuse, School of the EnvironmentNanjing UniversityNanjingPeople’s Republic of China
  2. 2.National Laboratory of Solid State MicrostructuresNanjing UniversityNanjingPeople’s Republic of China
  3. 3.State Key Laboratory of Catalysis, Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianPeople’s Republic of China
  4. 4.Eco-Materials and Renewable Energy Research CenterNanjing UniversityNanjingPeople’s Republic of China

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