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Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies

Palm kernel shell (PKS) core fibers, an agricultural waste, were chemically modified using N-(3-chloro-2-hydroxypropyl) trimethylammonium chloride (CHMAC) as a quaternizing agent. The potential of quaternized palm kernel shell (QPKS) as an adsorbent for fluoride in an aqueous solution was then studi...

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Main Authors: Bakar, Ayu Haslija Abu, Koay, Yin Shin, Ching, Yern Chee, Abdullah, Luqman Chuah, Choong, Thomas S.Y., Alkhatib, Ma'an, Mobarekeh, Mohsen Nourouzi, Zahri, Nur Amirah Mohd
Format: Article
Published: North Carolina State University 2016
Subjects:
TA Engineering (General). Civil engineering (General)
TP Chemical technology
Online Access:http://eprints.um.edu.my/18441/
https://doi.org/10.15376/biores.11.2.4485-4511
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spelling my.um.eprints.184412019-12-06T05:58:31Z http://eprints.um.edu.my/18441/ Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies Bakar, Ayu Haslija Abu Koay, Yin Shin Ching, Yern Chee Abdullah, Luqman Chuah Choong, Thomas S.Y. Alkhatib, Ma'an Mobarekeh, Mohsen Nourouzi Zahri, Nur Amirah Mohd TA Engineering (General). Civil engineering (General) TP Chemical technology Palm kernel shell (PKS) core fibers, an agricultural waste, were chemically modified using N-(3-chloro-2-hydroxypropyl) trimethylammonium chloride (CHMAC) as a quaternizing agent. The potential of quaternized palm kernel shell (QPKS) as an adsorbent for fluoride in an aqueous solution was then studied. The quaternized palm kernel shell (QPKS) core fibers were characterized using Fourier transform infrared spectroscopy (FTIR) and a scanning electron microscope (SEM). The effect of various factors on the fluoride sequestration was also investigated. The results showed that with an increase in the adsorbent amount and contact time, the efficiency of fluoride removal was improved. The maximum fluoride uptake was obtained at pH 3 and a contact time of 4 h. The adsorption behavior was further investigated using equilibrium isotherms and kinetics studies. The results from these studies fit well into Freundlich, Redlich-Peterson, and Sips isotherm's with a coefficient of determination (R2) of 0.9716. The maximum fluoride removal was 63%. For kinetics studies, the pseudo-second order was the best fit for fluoride, with an R2 of 0.999. These results suggest that QPKS has the potential to serve as a low-cost adsorbent for fluoride removal from aqueous solutions. North Carolina State University 2016 Article PeerReviewed Bakar, Ayu Haslija Abu and Koay, Yin Shin and Ching, Yern Chee and Abdullah, Luqman Chuah and Choong, Thomas S.Y. and Alkhatib, Ma'an and Mobarekeh, Mohsen Nourouzi and Zahri, Nur Amirah Mohd (2016) Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies. BioResources, 11 (2). pp. 4485-4511. ISSN 1930-2126 https://doi.org/10.15376/biores.11.2.4485-4511 doi:10.15376/biores.11.2.4485-4511
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
TP Chemical technology
spellingShingle TA Engineering (General). Civil engineering (General)
TP Chemical technology
Bakar, Ayu Haslija Abu
Koay, Yin Shin
Ching, Yern Chee
Abdullah, Luqman Chuah
Choong, Thomas S.Y.
Alkhatib, Ma'an
Mobarekeh, Mohsen Nourouzi
Zahri, Nur Amirah Mohd
Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies
description Palm kernel shell (PKS) core fibers, an agricultural waste, were chemically modified using N-(3-chloro-2-hydroxypropyl) trimethylammonium chloride (CHMAC) as a quaternizing agent. The potential of quaternized palm kernel shell (QPKS) as an adsorbent for fluoride in an aqueous solution was then studied. The quaternized palm kernel shell (QPKS) core fibers were characterized using Fourier transform infrared spectroscopy (FTIR) and a scanning electron microscope (SEM). The effect of various factors on the fluoride sequestration was also investigated. The results showed that with an increase in the adsorbent amount and contact time, the efficiency of fluoride removal was improved. The maximum fluoride uptake was obtained at pH 3 and a contact time of 4 h. The adsorption behavior was further investigated using equilibrium isotherms and kinetics studies. The results from these studies fit well into Freundlich, Redlich-Peterson, and Sips isotherm's with a coefficient of determination (R2) of 0.9716. The maximum fluoride removal was 63%. For kinetics studies, the pseudo-second order was the best fit for fluoride, with an R2 of 0.999. These results suggest that QPKS has the potential to serve as a low-cost adsorbent for fluoride removal from aqueous solutions.
format Article
author Bakar, Ayu Haslija Abu
Koay, Yin Shin
Ching, Yern Chee
Abdullah, Luqman Chuah
Choong, Thomas S.Y.
Alkhatib, Ma'an
Mobarekeh, Mohsen Nourouzi
Zahri, Nur Amirah Mohd
author_facet Bakar, Ayu Haslija Abu
Koay, Yin Shin
Ching, Yern Chee
Abdullah, Luqman Chuah
Choong, Thomas S.Y.
Alkhatib, Ma'an
Mobarekeh, Mohsen Nourouzi
Zahri, Nur Amirah Mohd
author_sort Bakar, Ayu Haslija Abu
title Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies
title_short Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies
title_full Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies
title_fullStr Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies
title_full_unstemmed Removal of fluoride using quaternized palm kernel shell as adsorbents: Equilibrium isotherms and kinetics studies
title_sort removal of fluoride using quaternized palm kernel shell as adsorbents: equilibrium isotherms and kinetics studies
publisher North Carolina State University
publishDate 2016
url http://eprints.um.edu.my/18441/
https://doi.org/10.15376/biores.11.2.4485-4511
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score 13.211869

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