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Comparison between the photocatalytic degradation of single and binary azo dyes in TiO2 suspensions under solar light irradiation

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Main Authors: Min, Ohm Mar, Ho, Li Ngee, Ong, Soon-An, Wong, Yee Shian
Other Authors: yswong@unimap.edu.my
Format: Article
Language:English
Published: IWA Publishing 2016
Subjects:
Adsorption capacity
Azo dyes
Mineralization
Photocatalytic degradation
Solar light
Titanium dioxide
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41178
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spelling my.unimap-411782017-11-29T07:01:01Z Comparison between the photocatalytic degradation of single and binary azo dyes in TiO2 suspensions under solar light irradiation Min, Ohm Mar Ho, Li Ngee Ong, Soon-An Wong, Yee Shian yswong@unimap.edu.my Adsorption capacity Azo dyes Mineralization Photocatalytic degradation Solar light Titanium dioxide Link to publisher's homepage at http://jwrd.iwaponline.com/ Textile industries discharge a large quantity of colored wastewater which is harmful to the ecosystem. In this study, two kinds of dyes were investigated: the mono azo Acid Orange 7 (AO7) and diazo Reactive Green 19 (RG19). The photocatalytic degradation of single (AO7, RG19) azo dye and binary (AO7 and RG19 mixture) azo dye aqueous solutions was photocatalyzed by commercial titanium dioxide (TiO2, P25) under solar light irradiation. The objectives of this study are to compare the photocatalytic degradation between single and binary azo dye aqueous solution and to study the various parameters such as the effect of different initial azo dye concentrations, different initial azo dye pH values, and compare the adsorption capacity of azo dyes with and without solar light irradiation, which influences the photocatalytic activities of single and binary azo dye aqueous solutions in a TiO2 suspension. The results showed that photocatalytic degradation of AO7 and RG19 in a single azo dye aqueous solution was faster than a binary azo dye solution under the solar light irradiation process. Chemical oxygen demand results revealed that complete mineralization could be achieved for both AO7 and RG19 azo dyes under solar light irradiation within 22 hours. 2016-03-22T03:01:34Z 2016-03-22T03:01:34Z 2015-12 Article Journal of Water Reuse and Desalination, vol.5 (4), 2015, pages 579-591 2220-1319 http://jwrd.iwaponline.com/content/5/4/579 http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41178 10.2166/wrd.2015.022 en IWA Publishing
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Adsorption capacity
Azo dyes
Mineralization
Photocatalytic degradation
Solar light
Titanium dioxide
spellingShingle Adsorption capacity
Azo dyes
Mineralization
Photocatalytic degradation
Solar light
Titanium dioxide
Min, Ohm Mar
Ho, Li Ngee
Ong, Soon-An
Wong, Yee Shian
Comparison between the photocatalytic degradation of single and binary azo dyes in TiO2 suspensions under solar light irradiation
description Link to publisher's homepage at http://jwrd.iwaponline.com/
author2 yswong@unimap.edu.my
author_facet yswong@unimap.edu.my
Min, Ohm Mar
Ho, Li Ngee
Ong, Soon-An
Wong, Yee Shian
format Article
author Min, Ohm Mar
Ho, Li Ngee
Ong, Soon-An
Wong, Yee Shian
author_sort Min, Ohm Mar
title Comparison between the photocatalytic degradation of single and binary azo dyes in TiO2 suspensions under solar light irradiation
title_short Comparison between the photocatalytic degradation of single and binary azo dyes in TiO2 suspensions under solar light irradiation
title_full Comparison between the photocatalytic degradation of single and binary azo dyes in TiO2 suspensions under solar light irradiation
title_fullStr Comparison between the photocatalytic degradation of single and binary azo dyes in TiO2 suspensions under solar light irradiation
title_full_unstemmed Comparison between the photocatalytic degradation of single and binary azo dyes in TiO2 suspensions under solar light irradiation
title_sort comparison between the photocatalytic degradation of single and binary azo dyes in tio2 suspensions under solar light irradiation
publisher IWA Publishing
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41178
_version_ 1643802777444417536
score 13.214268

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