Insight into the influence of morphology of Bi 2 WO 6 for photocatalytic degradation of VOCs under visible light

Changjun Zhu, Yangqing Liu, Haosu Cao, Jingwen Sun, Qi Xu, Liping Wang

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

Four kinds of Bi 2 WO 6 with different morphology were prepared by facile hydrothermal method with different additives and pH. In the photocatalytic degradation of gaseous toluene under visible light irradiation (λ > 420 nm), the nest-like Bi 2 WO 6 performed the best photodegradation efficiency of 100% in only 20 min, and could be reused for at least eight times without a significant loss of catalytic activity. According to the characterization techniques, including XRD, SEM, TEM, XPS, BET, UV–vis, PL and TPR, the excellent photocatalytic activity of the nest-like Bi 2 WO 6 is ascribed to the small particle size, large photo response interval, narrow band gap, high separation efficiency of electron-hole pairs and low recombination rate of photogenerated electron holes, that result in abundant reaction active sites.

Original languageEnglish
Pages (from-to)327-333
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume568
DOIs
StatePublished - 5 May 2019
Externally publishedYes

Keywords

  • Bi WO
  • Morphology
  • Photocatalytic degradation
  • Visible light

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Fingerprint

Dive into the research topics of 'Insight into the influence of morphology of Bi 2 WO 6 for photocatalytic degradation of VOCs under visible light'. Together they form a unique fingerprint.

Cite this