Efficient methylene blue removal over hydrothermally synthesized starlike BiVO4

Songmei Sun, Wenzhong Wang, Lin Zhou, Haolan Xu

Research output: Contribution to journalArticle

116 Citations (Scopus)

Abstract

Nanoplate-stacked starlike BiVO4 products have been successfully synthesized by a hydrothermal method, where a water/ethanol mixture was the solvent and ethylenediamine tetraacetic acid (EDTA) was the chelating agent. The molar ratio of EDTA to Bi3+ was found to play an important role in the formation of this morphology. These starlike BiVO4 samples exhibited a high visible-light-driven photocatalytic efficiency. For the degradation of methylene blue (MB) under visible-light irradiation (λ > 420 nm), about 91% of the MB was degraded within 25 min. This is much higher than for BiVO4 samples prepared by solid-state reaction (bulk BiVO4) and other hydrothermal synthesis methods. The reasons for the differences in the photocatalytic activities of these BiVO4 samples were further investigated.

Original languageEnglish
Pages (from-to)1735-1739
Number of pages5
JournalIndustrial and Engineering Chemistry Research
Volume48
Issue number4
DOIs
Publication statusPublished - Feb 18 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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