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Issue 6, 2014
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Microfluidic reactors for photocatalytic water purification

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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.

Graphical abstract: Microfluidic reactors for photocatalytic water purification

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The article was received on 01 Nov 2013, accepted on 10 Dec 2013 and first published on 11 Dec 2013

Article type: Critical Review
DOI: 10.1039/C3LC51233A
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Lab Chip, 2014,14, 1074-1082

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    Microfluidic reactors for photocatalytic water purification

    N. Wang, X. Zhang, Y. Wang, W. Yu and H. L. W. Chan, Lab Chip, 2014, 14, 1074
    DOI: 10.1039/C3LC51233A

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