Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/66893
Title: Biomimetic microchannels of planar reactors for optimized photocatalytic efficiency of water purification
Authors: Liao, WX
Wang, N
Wang, TS
Xu, J
Han, XD
Liu, ZY
Zhang, XM 
Yu, WX
Issue Date: 2016
Publisher: American Institute of Physics
Source: Biomicrofluidics, Jan. 2016, v. 10, no. 1 How to cite?
Journal: Biomicrofluidics 
Abstract: This paper reports a biomimetic design of microchannels in the planar reactors with the aim to optimize the photocatalytic efficiency of water purification. Inspired from biology, a bifurcated microchannel has been designed based on the Murray's law to connect to the reaction chamber for photocatalytic reaction. The microchannels are designed to have a constant depth of 50 mu m but variable aspect ratios ranging from 0.015 to 0.125. To prove its effectiveness for photocatalytic water purification, the biomimetic planar reactors have been tested and compared with the non-biomimetic ones, showing an improvement of the degradation efficiency by 68%. By employing the finite element method, the flow process of the designed microchannel reactors has been simulated and analyzed. It is found that the biomimetic design owns a larger flow velocity fluctuation than that of the non-biomimetic one, which in turn results in a faster photocatalytic reaction speed. Such a biomimetic design paves the way for the design of more efficient planar reactors and may also find applications in other microfluidic systems that involve the use of microchannels.
Description: 5th International Conference on Optofluidics (Optofluidics), Jul 26-29, 2015, Taipei, Taiwan
URI: http://hdl.handle.net/10397/66893
EISSN: 1932-1058
DOI: 10.1063/1.4942947
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