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Removal of ethyl orange dye using hybrid chitosan and zinc oxide

Ethyl Orange is a type of water-soluble azo dye, which is widely used in the textile, printing, paper manufacturing, pharmaceutical and food industries. Due to a large-scale production and extensive application of azo dyes, it can cause considerable amount of polluted wastewater and can generate ser...

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Main Authors: Ngadi, Norzita, Jusoh, Mazura, A. Rahman, Roshanida, Alias, Hajar, Mahmud, Mohamad Akmal
Format: Article
Published: Penerbit UTM Press 2014
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/62442/
http://dx.doi.org/10.11113/jt.v67.1665
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spelling my.utm.624422017-06-14T01:46:21Z http://eprints.utm.my/id/eprint/62442/ Removal of ethyl orange dye using hybrid chitosan and zinc oxide Ngadi, Norzita Jusoh, Mazura A. Rahman, Roshanida Alias, Hajar Mahmud, Mohamad Akmal TP Chemical technology Ethyl Orange is a type of water-soluble azo dye, which is widely used in the textile, printing, paper manufacturing, pharmaceutical and food industries. Due to a large-scale production and extensive application of azo dyes, it can cause considerable amount of polluted wastewater and can generate serious health-risk factors. Chitosan, a low cost adsorbent has been widely used to treat azo dye. Recent studies had discovered heterogeneous photocatalysis using semiconductors such as zinc oxide is quite applicable because of its ability to decolorize dye-containing wastewater more effectively. The purpose of this research is to hybridize the low-cost adsorbent chitosan and semiconductor zinc oxide to produce an adsorbent which has high efficiency for removing azo dye. The parameters that were used in this study are pH values (pH 5.0 to 9.0), temperature (25 to 60°C) and the initial dye concentration (0.10 to 1.00 mg/L). The results obtained showed that hybrid chitosan and zinc oxide adsorbent had successfully decolorized ethyl orange dye in water. The optimum conditions for the highest removal of ethyl orange (85%) were achieved at following conditions; temperature of 60°C, using adsorbent containing 1 g of chitosan and 2.0wt % of zinc oxide, 1.0 mg/L of dye concentration, at pH 7 and 2 hours of mixing time with 130 rpm of mixing rate. In this study, the adsorption process was found to fit the Freundlich isotherm than of the Langmuir isotherm. Penerbit UTM Press 2014 Article PeerReviewed Ngadi, Norzita and Jusoh, Mazura and A. Rahman, Roshanida and Alias, Hajar and Mahmud, Mohamad Akmal (2014) Removal of ethyl orange dye using hybrid chitosan and zinc oxide. Jurnal Teknologi (Sciences and Engineering), 67 (1). pp. 47-52. ISSN 0127-9696 http://dx.doi.org/10.11113/jt.v67.1665 DOI:10.11113/jt.v67.1665
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Ngadi, Norzita
Jusoh, Mazura
A. Rahman, Roshanida
Alias, Hajar
Mahmud, Mohamad Akmal
Removal of ethyl orange dye using hybrid chitosan and zinc oxide
description Ethyl Orange is a type of water-soluble azo dye, which is widely used in the textile, printing, paper manufacturing, pharmaceutical and food industries. Due to a large-scale production and extensive application of azo dyes, it can cause considerable amount of polluted wastewater and can generate serious health-risk factors. Chitosan, a low cost adsorbent has been widely used to treat azo dye. Recent studies had discovered heterogeneous photocatalysis using semiconductors such as zinc oxide is quite applicable because of its ability to decolorize dye-containing wastewater more effectively. The purpose of this research is to hybridize the low-cost adsorbent chitosan and semiconductor zinc oxide to produce an adsorbent which has high efficiency for removing azo dye. The parameters that were used in this study are pH values (pH 5.0 to 9.0), temperature (25 to 60°C) and the initial dye concentration (0.10 to 1.00 mg/L). The results obtained showed that hybrid chitosan and zinc oxide adsorbent had successfully decolorized ethyl orange dye in water. The optimum conditions for the highest removal of ethyl orange (85%) were achieved at following conditions; temperature of 60°C, using adsorbent containing 1 g of chitosan and 2.0wt % of zinc oxide, 1.0 mg/L of dye concentration, at pH 7 and 2 hours of mixing time with 130 rpm of mixing rate. In this study, the adsorption process was found to fit the Freundlich isotherm than of the Langmuir isotherm.
format Article
author Ngadi, Norzita
Jusoh, Mazura
A. Rahman, Roshanida
Alias, Hajar
Mahmud, Mohamad Akmal
author_facet Ngadi, Norzita
Jusoh, Mazura
A. Rahman, Roshanida
Alias, Hajar
Mahmud, Mohamad Akmal
author_sort Ngadi, Norzita
title Removal of ethyl orange dye using hybrid chitosan and zinc oxide
title_short Removal of ethyl orange dye using hybrid chitosan and zinc oxide
title_full Removal of ethyl orange dye using hybrid chitosan and zinc oxide
title_fullStr Removal of ethyl orange dye using hybrid chitosan and zinc oxide
title_full_unstemmed Removal of ethyl orange dye using hybrid chitosan and zinc oxide
title_sort removal of ethyl orange dye using hybrid chitosan and zinc oxide
publisher Penerbit UTM Press
publishDate 2014
url http://eprints.utm.my/id/eprint/62442/
http://dx.doi.org/10.11113/jt.v67.1665
_version_ 1643655420435234816
score 13.211869

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