Ag/BiOBr film in a rotating-disk reactor containing long-afterglow phosphor for round-the-clock photocatalysis

Haibo Yin, Xiaofang Chen, Rujing Hou, Huijuan Zhu, Shiqing Li, Yuning Huo, Hexing Li

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41 Citations (Scopus)

Abstract

Ag/BiOBr film coated on the glass substrate was synthesized by a solvothermal method and a subsequent photoreduction process. Such a Ag/BiOBr film was then adhered to a hollow rotating disk filled with long-afterglow phosphor inside the chamber. The Ag/BiOBr film exhibited high photocatalytic activity for organic pollutant degradation owing to the improved visible-light harvesting and the separation of photoinduced charges. The long-afterglow phosphor could absorb the excessive daylight and emit light around 488 nm, activating the Ag/BiOBr film to realize round-the-clock photocatalysis. Because the Ag nanoparticles could extend the light absorbance of the Ag/BiOBr film to wavelengths of around 500 nm via a surface plasma resonance effect, they played a key role in realizing photocatalysis induced by long-afterglow phosphor.

Original languageEnglish
Pages (from-to)20076-20082
Number of pages7
JournalACS Applied Materials & Interfaces
Volume7
Issue number36
DOIs
Publication statusPublished - 16 Sep 2015
Externally publishedYes

Keywords

  • Ag/BiOBr film
  • long-afterglow phosphor
  • rotating-disk reactor
  • round-the-clock photocatalysis
  • visible-light photocatalyst

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