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...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/53772/1/Removal%20of%20fluoride%20using%20quaternized%20palm%20kernel%20shell%20as%20adsorbents.pdf |
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| author | Abu Bakar, Ayu Haslija Koay, Yin Shin Ching, Yern Chee Abdullah, Luqman Chuah Choong, Thomas Shean Yaw Alkhatib, Ma'an Mobarekeh, Mohsen Nourouzi Mohd Zahri, Nur Amirah |
| author_facet | Abu Bakar, Ayu Haslija Koay, Yin Shin Ching, Yern Chee Abdullah, Luqman Chuah Choong, Thomas Shean Yaw Alkhatib, Ma'an Mobarekeh, Mohsen Nourouzi Mohd Zahri, Nur Amirah |
| author_sort | Abu Bakar, Ayu Haslija |
| collection | UPM |
| 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. |
| first_indexed | 2024-03-06T09:18:48Z |
| format | Article |
| id | upm.eprints-53772 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:18:48Z |
| publishDate | 2016 |
| publisher | North Carolina State University |
| record_format | dspace |
| spelling | upm.eprints-537722018-01-17T02:11:26Z http://psasir.upm.edu.my/id/eprint/53772/ Removal of fluoride using quaternized palm kernel shell as adsorbents: equilibrium isotherms and kinetics studies Abu Bakar, Ayu Haslija Koay, Yin Shin Ching, Yern Chee Abdullah, Luqman Chuah Choong, Thomas Shean Yaw Alkhatib, Ma'an Mobarekeh, Mohsen Nourouzi Mohd Zahri, Nur Amirah 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 application/pdf en http://psasir.upm.edu.my/id/eprint/53772/1/Removal%20of%20fluoride%20using%20quaternized%20palm%20kernel%20shell%20as%20adsorbents.pdf Abu Bakar, Ayu Haslija and Koay, Yin Shin and Ching, Yern Chee and Abdullah, Luqman Chuah and Choong, Thomas Shean Yaw and Alkhatib, Ma'an and Mobarekeh, Mohsen Nourouzi and Mohd Zahri, Nur Amirah (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 http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_2_4485_Abu_Bakar_Fluoride_Palm_Kernel_Shell |
| spellingShingle | Abu Bakar, Ayu Haslija Koay, Yin Shin Ching, Yern Chee Abdullah, Luqman Chuah Choong, Thomas Shean Yaw Alkhatib, Ma'an Mobarekeh, Mohsen Nourouzi Mohd Zahri, Nur Amirah Removal of fluoride using quaternized palm kernel shell as adsorbents: equilibrium isotherms and kinetics studies |
| title | 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_short | 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 |
| url | http://psasir.upm.edu.my/id/eprint/53772/1/Removal%20of%20fluoride%20using%20quaternized%20palm%20kernel%20shell%20as%20adsorbents.pdf |
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