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Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin

Environmental pollution caused by untreated discharge containing heavy metal is alarming due to the toxicity. Continuous efforts in producing an economical, robust, and efficient sorbent for a variety of water pollutants such as dyes, heavy metals, microorganisms are actively being pursued. In this...

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Main Author: Nordin, Mohamad Izzat Arif
Format: Student Project
Language:English
Published: 2023
Subjects:
Physical and theoretical chemistry
Flocculation, precipitation, adsorption, etc. Coagulation
Online Access:https://ir.uitm.edu.my/id/eprint/96255/1/96255.pdf
https://ir.uitm.edu.my/id/eprint/96255/
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spelling my.uitm.ir.962552024-05-31T09:33:24Z https://ir.uitm.edu.my/id/eprint/96255/ Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin Nordin, Mohamad Izzat Arif Physical and theoretical chemistry Flocculation, precipitation, adsorption, etc. Coagulation Environmental pollution caused by untreated discharge containing heavy metal is alarming due to the toxicity. Continuous efforts in producing an economical, robust, and efficient sorbent for a variety of water pollutants such as dyes, heavy metals, microorganisms are actively being pursued. In this study, a double network polymer network consisting poly(1-vinylimidazole-co-acrylic acid)/poly(vinyl alcohol) (P(VI-co-AA)/PVA adsorbent were successfully synthesized as functional polymer adsorbent via in-situ free-radical polymerization followed by cyclic freeze-thaw. P(VI-co-AA)/PVA was characterized by using NMR, FTIR, FESEM and TGA. As a double polymer network, the swelling behaviour of P(VI-co-AA)/PVA adsorbent was slower and more controlled in deionized water and phosphate buffer solution at pH 7 compared to dramatic swelling of the single polymer network, P(VI-co-AA), which showed tendency to rupture after several hours of swelling in the aqueous media. Batch adsorption of Cu2+ and Pb2+ by the P(VI-co-AA)/PVA adsorbent was conducted under ambient conditions, at pH 6 and initial metal ion concentration of 100 ppm using two different adsorbent dosages until adsorption equilibria were achieved. The metal ions adsorption efficiencies of the P(VI-co-AA)/PVA adsorbent were compared with the single polymer networks, which were P(VI-co-AA) and PVA, where were prepared through similar experimental conditions. High removal efficiencies (>90%) for both Cu2+ and Pb2+ were reported for the P(VI-co-AA)/PVA and P(VI-co-AA) adsorbents at for the 1 g/L and 2 g/L adsorbents dosages, however, the P(VI-co-AA) network ruptured due to high osmotic pressure after several hours of adsorption. The P(VI-co-AA)/PVA adsorbents recorded 98 – 100 mg/g adsorption capacities (Cu2+ and Pb2+) at 1 g/L dosage, and the adsorption capacities for these metal ions significantly reduced by ̴ 50% when the adsorbent dosage was doubled whilst maintaining the initial metal ion concentration at 100 ppm. Therefore, the P(VI-co-AA)/PVA double-network adsorbent demonstrated enhanced mechanical properties compared to the P(VI-co-AA) single-network adsorbent and high adsorption capacities for Cu2+ and Pb2+, making it as a suitable as a functional adsorbent candidate to adsorb metal ions from wastewaters. 2023 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/96255/1/96255.pdf Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin. (2023) [Student Project] (Unpublished)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Physical and theoretical chemistry
Flocculation, precipitation, adsorption, etc. Coagulation
spellingShingle Physical and theoretical chemistry
Flocculation, precipitation, adsorption, etc. Coagulation
Nordin, Mohamad Izzat Arif
Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin
description Environmental pollution caused by untreated discharge containing heavy metal is alarming due to the toxicity. Continuous efforts in producing an economical, robust, and efficient sorbent for a variety of water pollutants such as dyes, heavy metals, microorganisms are actively being pursued. In this study, a double network polymer network consisting poly(1-vinylimidazole-co-acrylic acid)/poly(vinyl alcohol) (P(VI-co-AA)/PVA adsorbent were successfully synthesized as functional polymer adsorbent via in-situ free-radical polymerization followed by cyclic freeze-thaw. P(VI-co-AA)/PVA was characterized by using NMR, FTIR, FESEM and TGA. As a double polymer network, the swelling behaviour of P(VI-co-AA)/PVA adsorbent was slower and more controlled in deionized water and phosphate buffer solution at pH 7 compared to dramatic swelling of the single polymer network, P(VI-co-AA), which showed tendency to rupture after several hours of swelling in the aqueous media. Batch adsorption of Cu2+ and Pb2+ by the P(VI-co-AA)/PVA adsorbent was conducted under ambient conditions, at pH 6 and initial metal ion concentration of 100 ppm using two different adsorbent dosages until adsorption equilibria were achieved. The metal ions adsorption efficiencies of the P(VI-co-AA)/PVA adsorbent were compared with the single polymer networks, which were P(VI-co-AA) and PVA, where were prepared through similar experimental conditions. High removal efficiencies (>90%) for both Cu2+ and Pb2+ were reported for the P(VI-co-AA)/PVA and P(VI-co-AA) adsorbents at for the 1 g/L and 2 g/L adsorbents dosages, however, the P(VI-co-AA) network ruptured due to high osmotic pressure after several hours of adsorption. The P(VI-co-AA)/PVA adsorbents recorded 98 – 100 mg/g adsorption capacities (Cu2+ and Pb2+) at 1 g/L dosage, and the adsorption capacities for these metal ions significantly reduced by ̴ 50% when the adsorbent dosage was doubled whilst maintaining the initial metal ion concentration at 100 ppm. Therefore, the P(VI-co-AA)/PVA double-network adsorbent demonstrated enhanced mechanical properties compared to the P(VI-co-AA) single-network adsorbent and high adsorption capacities for Cu2+ and Pb2+, making it as a suitable as a functional adsorbent candidate to adsorb metal ions from wastewaters.
format Student Project
author Nordin, Mohamad Izzat Arif
author_facet Nordin, Mohamad Izzat Arif
author_sort Nordin, Mohamad Izzat Arif
title Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin
title_short Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin
title_full Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin
title_fullStr Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin
title_full_unstemmed Adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / Mohamad Izzat Arif Nordin
title_sort adsorption of heavy metal ions from aqueous solutions using a functional polymer adsorbent / mohamad izzat arif nordin
publishDate 2023
url https://ir.uitm.edu.my/id/eprint/96255/1/96255.pdf
https://ir.uitm.edu.my/id/eprint/96255/
_version_ 1800726772186087424
score 13.211869

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