Please use this identifier to cite or link to this item:
PIRA download icon_1.1View/Download Full Text
Title: Optofluidics-based membrane microreactor for wastewater treatment by photocatalytic ozonation
Authors: He, X
Chen, R
Zhu, X
Liao, Q
An, L 
Cheng, X
Li, L
Issue Date: 10-Aug-2016
Source: Industrial and engineering chemistry research, 10 Aug. 2016, v. 55, no. 31, p. 8627-8635
Abstract: Conventional photocatalytic ozonation usually suffers from the mass transport issue associated with low specific surface area and gas/liquid interface and liquid film. To address this issue, a new membrane microreactor based on optofluidics was developed for wastewater treatment by the photocatalytic ozonation in this work. The key component of the photocatalytic membrane was prepared by coating TiO2 onto carbon paper followed by the hydrophobic treatment with polytetrafluoroethylene. Such design offered several advantages such as large surface-area-to-volume ratio, enhanced mass transport, intense and uniform light irradiation, efficient separation of the liquid/gas phases, and good gas permeability. The performance of the developed microreactor was evaluated by methylene blue degradation, and the products were analyzed by the ion chromatography. Experimental results showed that because of these advantages, the optofluidic membrane microreactor not only yielded better performance but also showed more complete oxidation as compared to photocatalysis and ozonation. Parametric studies indicated that increasing the residence time and decreasing the methylene blue concentration could improve the degradation efficiency. High light intensity benefited photocatalytic ozonation. The obtained results demonstrate that the developed optofluidic membrane microreactor is feasible for wastewater treatment by photocatalytic ozonation. Besides, this new type of microreactor can also be applied to other photocatalytic systems.
Publisher: American Chemical Society
Journal: Industrial and engineering chemistry research 
ISSN: 0888-5885
DOI: 10.1021/acs.iecr.6b00562
Rights: © 2016 American Chemical Society
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Industrial & Engineering Chemistry Research, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
An_Optofluidics-Based_Membrane_Microreactor.pdf1.17 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Final Accepted Manuscript
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

Last Week
Last month
Citations as of Sep 24, 2023


Citations as of Sep 24, 2023


Last Week
Last month
Citations as of Sep 28, 2023


Last Week
Last month
Citations as of Sep 28, 2023

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.