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Titania-coated plastic optical fiber fabrics for remote photocatalytic degradation of aqueous pollutants

Title
Titania-coated plastic optical fiber fabrics for remote photocatalytic degradation of aqueous pollutants
Authors
Kim, S.[Kim, S.]Kim, M.[Kim, M.]Lim, S.K.[Lim, S.K.]Park, Y.[Park, Y.]
DGIST Authors
Kim, S.[Kim, S.]; Kim, M.[Kim, M.]; Lim, S.K.[Lim, S.K.]; Park, Y.[Park, Y.]
Issue Date
2017
Citation
Journal of Environmental Chemical Engineering, 5(2), 1899-1905
Type
Article
Article Type
Article
Keywords
4 Chlorophenol (4 Cp)Advanced Oxidation ProcessesAromatic CompoundsChromium CompoundsContaminated SoilsDip Coating MethodsFiber Optic SensorsFibersGroundwaterGroundwater PollutionIncreasing SolutionsOptical FibersOxidationPhoto Catalytic DegradationPhoto Catalytic OxidationsPhotodegradationPhotolysisPlastic CoatingsPlastic Optical FiberPlastic Optical FibersPlasticsRedox ReactionsRemediationRemote Photocatalytic OxidationSide IlluminationSoil PollutionTitaniaTitanium DioxideWeaving
ISSN
2213-3437
Abstract
Plastic optical fiber fabrics are widely utilized as efficient support materials owing to their high flexibility. In this study, we have investigated a remote photocatalysis system using modified plastic optical fiber fabrics. We successfully deposited TiO2 onto a modified plastic optical fiber fabric using the dip-coating method. The drying temperature was fixed at 50 °C in order to inhibit the decomposition of the fabric. The TiO2-coated woven plastic optical fiber fabric was applied to the photocatalytic degradation of methylene blue (MB) and the simultaneous oxidation of 4-chlorophenol (4-CP) and reduction of Cr(VI). The degradation of MB by direct photolysis, or through dark reactions of the adsorbed MB on the surface of the fabric, was not observed. MB degradation increased with increasing TiO2 loading, Pt deposition, increasing solution pH, and decreasing initial MB concentration. Repeated testing in the above-mentioned degradation and simultaneous redox reactions revealed that the TiO2-coated woven plastic optical fiber fabrics retain good activity after multiple cycles. On the basis of these results, we propose that plastic optical fiber fabrics together with photocatalysts are suitable for remote (in situ) advanced oxidation process useful for the remediation of contaminated soil or groundwater. © 2017 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/4261
DOI
10.1016/j.jece.2017.03.036
Publisher
Elsevier Ltd
Files:
There are no files associated with this item.
Collection:
Division of Nano∙Energy Convergence Research1. Journal Articles


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