Optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water

© 2015 Balaban Desalination Publications. All rights reserved. The prototype photocatalytic reactor was designed and then constructed in a horizontal scheme for testing the decolorization of methylene blue (MB) as a toxic organic model by UVA irradiation. The optimization of the photocatalytic react...

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Main Authors: Wetchakun K., Wetchakun N., Phanichphant S.
Format: Journal
Published: 2017
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84928128328&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/41887
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-418872017-09-28T04:23:55Z Optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water Wetchakun K. Wetchakun N. Phanichphant S. © 2015 Balaban Desalination Publications. All rights reserved. The prototype photocatalytic reactor was designed and then constructed in a horizontal scheme for testing the decolorization of methylene blue (MB) as a toxic organic model by UVA irradiation. The optimization of the photocatalytic reactor with a recycling system using TiO 2 nanoparticles (P25) as photocatalysts was investigated in this work. The efficiencies on MB photocatalytic decolorization of three geometric photocollectors in the reactor: (i) parabolic through collector (PTC), (ii) compound parabolic collector (CPC), and (iii) flat-plate collector (FPC), including the presence and the absence of parabolic reflector cover the UVA tubular lamp as an artificial light source were compared. Excepting only the CPC, the experimental results indicate that the orientation of light rays using the reflector as a primary and the collector as a secondary, can improve on the photocatalytic efficiency of MB decolorization. In our case, the PTC with the presence of the reflector shows higher performance on the MB decolorization than the CPC with the absence of the reflector and the FPC with the presence of the reflector. The photocatalytic reaction over MB decolorization can be explained under pseudo-first-order kinetics model. For our study, the optimums of MB suspension flow rate and TiO 2 catalyst concentration were found toward 345 mL/min and 1.0 g/L, respectively. 2017-09-28T04:23:54Z 2017-09-28T04:23:54Z 2016-05-08 Journal 19443994 2-s2.0-84928128328 10.1080/19443994.2015.1036467 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84928128328&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/41887
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2015 Balaban Desalination Publications. All rights reserved. The prototype photocatalytic reactor was designed and then constructed in a horizontal scheme for testing the decolorization of methylene blue (MB) as a toxic organic model by UVA irradiation. The optimization of the photocatalytic reactor with a recycling system using TiO 2 nanoparticles (P25) as photocatalysts was investigated in this work. The efficiencies on MB photocatalytic decolorization of three geometric photocollectors in the reactor: (i) parabolic through collector (PTC), (ii) compound parabolic collector (CPC), and (iii) flat-plate collector (FPC), including the presence and the absence of parabolic reflector cover the UVA tubular lamp as an artificial light source were compared. Excepting only the CPC, the experimental results indicate that the orientation of light rays using the reflector as a primary and the collector as a secondary, can improve on the photocatalytic efficiency of MB decolorization. In our case, the PTC with the presence of the reflector shows higher performance on the MB decolorization than the CPC with the absence of the reflector and the FPC with the presence of the reflector. The photocatalytic reaction over MB decolorization can be explained under pseudo-first-order kinetics model. For our study, the optimums of MB suspension flow rate and TiO 2 catalyst concentration were found toward 345 mL/min and 1.0 g/L, respectively.
format Journal
author Wetchakun K.
Wetchakun N.
Phanichphant S.
spellingShingle Wetchakun K.
Wetchakun N.
Phanichphant S.
Optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water
author_facet Wetchakun K.
Wetchakun N.
Phanichphant S.
author_sort Wetchakun K.
title Optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water
title_short Optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water
title_full Optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water
title_fullStr Optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water
title_full_unstemmed Optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water
title_sort optimization of horizontal photocatalytic reactor for decolorization of methylene blue in water
publishDate 2017
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84928128328&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/41887
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