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Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions

This study was conducted to analyze the adsorption efficiency of lignin/alginate/hydroxyapatite composite beads for the removal of copper Cu(II) and nickel Ni(II) ions from an aqueous solution. For this purpose, lignin, alginate and hydroxyapatite (HAp) composite was prepared in the form of lignin/a...

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Main Authors: Naseer, A., Hamid, A., Ghauri, M., Nasrullah, A., Iqbal, J., Shah, N.S., Rafiq, S., Irfan, M., Muhammad, N.
Format: Article
Published: Desalination Publications 2020
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85086320670&doi=10.5004%2fdwt.2020.25356&partnerID=40&md5=fe156b7bbe25725f927626a0e5335142
http://eprints.utp.edu.my/23436/
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spelling my.utp.eprints.234362021-08-19T07:20:18Z Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions Naseer, A. Hamid, A. Ghauri, M. Nasrullah, A. Iqbal, J. Shah, N.S. Rafiq, S. Irfan, M. Muhammad, N. This study was conducted to analyze the adsorption efficiency of lignin/alginate/hydroxyapatite composite beads for the removal of copper Cu(II) and nickel Ni(II) ions from an aqueous solution. For this purpose, lignin, alginate and hydroxyapatite (HAp) composite was prepared in the form of lignin/alginate/hydroxyapatite composite beads. Adsorbents were synthesized in three different ratios by mixing lignin/alginate/hydroxyapatite and sodium alginate in distilled water (25�30 ml) which was then added dropwise to the calcium chloride (CaCl2) solution to form its lignin/alginate/ hydroxyapatite composite beads. Synthesized beads were characterized using X-ray powder diffrac-tion, Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The effect of various experimental parameters such as contact time, pH, the initial concentration of Cu(II) and Ni(II) and adsorbent dose on adsorption capacity was investigated. Kinetic and isotherm data confirmed that the pseudo-first-order model and Langmuir isotherm were best fitted to experimental data. An increase in the adsorption capacity of heavy metals from an aqueous solution was observed with the increase in lignin percentage in beads. The maximum adsorption capacity for Cu(II) and Ni(II) was 79.67 and 71.18 mg/g, respectively for C3 (60) lignin Reusability study of lignin/alginate/hydroxyapatite beads showed 79 removal efficacy after four successive adsorp-tion-desorption cycles. The results showed that lignin/alginate/hydroxyapatite composite beads can be used as promising environmentally benign adsorbent for the removal of heavy metal ions from an aqueous solution. © 2020 Desalination Publications. All rights reserved. Desalination Publications 2020 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85086320670&doi=10.5004%2fdwt.2020.25356&partnerID=40&md5=fe156b7bbe25725f927626a0e5335142 Naseer, A. and Hamid, A. and Ghauri, M. and Nasrullah, A. and Iqbal, J. and Shah, N.S. and Rafiq, S. and Irfan, M. and Muhammad, N. (2020) Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions. Desalination and Water Treatment, 184 . pp. 199-213. http://eprints.utp.edu.my/23436/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description This study was conducted to analyze the adsorption efficiency of lignin/alginate/hydroxyapatite composite beads for the removal of copper Cu(II) and nickel Ni(II) ions from an aqueous solution. For this purpose, lignin, alginate and hydroxyapatite (HAp) composite was prepared in the form of lignin/alginate/hydroxyapatite composite beads. Adsorbents were synthesized in three different ratios by mixing lignin/alginate/hydroxyapatite and sodium alginate in distilled water (25�30 ml) which was then added dropwise to the calcium chloride (CaCl2) solution to form its lignin/alginate/ hydroxyapatite composite beads. Synthesized beads were characterized using X-ray powder diffrac-tion, Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The effect of various experimental parameters such as contact time, pH, the initial concentration of Cu(II) and Ni(II) and adsorbent dose on adsorption capacity was investigated. Kinetic and isotherm data confirmed that the pseudo-first-order model and Langmuir isotherm were best fitted to experimental data. An increase in the adsorption capacity of heavy metals from an aqueous solution was observed with the increase in lignin percentage in beads. The maximum adsorption capacity for Cu(II) and Ni(II) was 79.67 and 71.18 mg/g, respectively for C3 (60) lignin Reusability study of lignin/alginate/hydroxyapatite beads showed 79 removal efficacy after four successive adsorp-tion-desorption cycles. The results showed that lignin/alginate/hydroxyapatite composite beads can be used as promising environmentally benign adsorbent for the removal of heavy metal ions from an aqueous solution. © 2020 Desalination Publications. All rights reserved.
format Article
author Naseer, A.
Hamid, A.
Ghauri, M.
Nasrullah, A.
Iqbal, J.
Shah, N.S.
Rafiq, S.
Irfan, M.
Muhammad, N.
spellingShingle Naseer, A.
Hamid, A.
Ghauri, M.
Nasrullah, A.
Iqbal, J.
Shah, N.S.
Rafiq, S.
Irfan, M.
Muhammad, N.
Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions
author_facet Naseer, A.
Hamid, A.
Ghauri, M.
Nasrullah, A.
Iqbal, J.
Shah, N.S.
Rafiq, S.
Irfan, M.
Muhammad, N.
author_sort Naseer, A.
title Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions
title_short Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions
title_full Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions
title_fullStr Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions
title_full_unstemmed Lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions
title_sort lignin/alginate/hydroxyapatite composite beads for the efficient removal of copper and nickel ions from aqueous solutions
publisher Desalination Publications
publishDate 2020
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85086320670&doi=10.5004%2fdwt.2020.25356&partnerID=40&md5=fe156b7bbe25725f927626a0e5335142
http://eprints.utp.edu.my/23436/
_version_ 1738656471724326912
score 13.211869

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