Microfluidic reactors for photocatalytic water purification

Ning Wang, Xuming Zhang, Yu Wang, Weixing Yu, Helen L.W. Chan

Research output: Journal article publicationReview articleAcademic researchpeer-review

94 Citations (Scopus)

Abstract

Photocatalytic water purification utilizes light to degrade the contaminants in water and may enjoy many merits of microfluidics technology such as fine flow control, large surface-area-to-volume ratio and self-refreshing of reaction surface. Although a number of microfluidic reactors have been reported for photocatalysis, there is still a lack of a comprehensive review. This article aims to identify the physical mechanisms that underpin the synergy of microfluidics and photocatalysis, and, based on which, to review the reported microfluidic photocatalytic reactors. These microreactors help overcome different problems in bulk reactors such as photon transfer limitation, mass transfer limitation, oxygen deficiency, and lack of reaction pathway control. They may be scaled up for large-throughput industrial applications of water processing and may also find niche applications in rapid screening and standardized tests of photocatalysts.
Original languageEnglish
Pages (from-to)1074-1082
Number of pages9
JournalLab on a Chip
Volume14
Issue number6
DOIs
Publication statusPublished - 21 Mar 2014

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Chemistry(all)
  • Biomedical Engineering

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