SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER

The goal of this study was to produce graphene oxide (GO) from sago hampas for the removal of lead (II) ions in water. The utilisation of sago hampas may promote sustainable practices for GO production using renewable biomass, thus reducing carbon footprint. The GO was made using a modified Hummers...

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Main Authors: Dayang Norafizan, Awang Chee, Nur Afiqah, Kamaludin, Lucy, Sylvester, Muhammad Shamil, Soffian, Faezrul Zackry, Abdul Halim, Claudeareena Garlding, Malien, Mohamed Afizal, Mohamed Amin
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Language:English
Published: UMT Press 2025
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Online Access:http://ir.unimas.my/id/eprint/47646/1/JSSM.pdf
http://ir.unimas.my/id/eprint/47646/
https://jssm.umt.edu.my/wp-content/uploads/2025/02/JSSM-V20-N2-Article-7-Draf-2.pdf
http://doi.org/10.46754/jssm.2025.02.007
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Institution: Universiti Malaysia Sarawak
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spelling my.unimas.ir-476462025-02-24T02:23:15Z http://ir.unimas.my/id/eprint/47646/ SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER Dayang Norafizan, Awang Chee Nur Afiqah, Kamaludin Lucy, Sylvester Muhammad Shamil, Soffian Faezrul Zackry, Abdul Halim Claudeareena Garlding, Malien Mohamed Afizal, Mohamed Amin QD Chemistry The goal of this study was to produce graphene oxide (GO) from sago hampas for the removal of lead (II) ions in water. The utilisation of sago hampas may promote sustainable practices for GO production using renewable biomass, thus reducing carbon footprint. The GO was made using a modified Hummers’ technique, which resulted in a highly oxidised material with many functional groups. The synthesised GO was characterised using Fourier-transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Batch adsorption tests were performed to evaluate the removal efficiency. The effect of pH, contact time, and initial Pb concentration was investigated during the optimisation process. The outcomes showed that GO had exceptional adsorption capabilities, eliminating over 95% of the Pb at its maximum efficiency. The adsorption kinetics pseudo-second-order model with a regression coefficient of R2 = 0.9999 illustrated a chemical adsorption mechanism. A monolayer adsorption mechanism is suggested by the equilibrium data’s good fit to the Langmuir isotherm (R2 = 0.9588). With its large surface area, abundance of functional groups, and strong adsorption affinity, the synthesised GO showed promising properties as an adsorbent for removing Pb from wastewater. This work provides critical knowledge for developing effective and ecologically responsible heavy metal removal adsorbents. UMT Press 2025-02 Article PeerReviewed text en http://ir.unimas.my/id/eprint/47646/1/JSSM.pdf Dayang Norafizan, Awang Chee and Nur Afiqah, Kamaludin and Lucy, Sylvester and Muhammad Shamil, Soffian and Faezrul Zackry, Abdul Halim and Claudeareena Garlding, Malien and Mohamed Afizal, Mohamed Amin (2025) SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER. Journal of Sustainability Science and Management, 20 (2). pp. 297-313. ISSN 2672-7226 https://jssm.umt.edu.my/wp-content/uploads/2025/02/JSSM-V20-N2-Article-7-Draf-2.pdf http://doi.org/10.46754/jssm.2025.02.007
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Dayang Norafizan, Awang Chee
Nur Afiqah, Kamaludin
Lucy, Sylvester
Muhammad Shamil, Soffian
Faezrul Zackry, Abdul Halim
Claudeareena Garlding, Malien
Mohamed Afizal, Mohamed Amin
SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER
description The goal of this study was to produce graphene oxide (GO) from sago hampas for the removal of lead (II) ions in water. The utilisation of sago hampas may promote sustainable practices for GO production using renewable biomass, thus reducing carbon footprint. The GO was made using a modified Hummers’ technique, which resulted in a highly oxidised material with many functional groups. The synthesised GO was characterised using Fourier-transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Batch adsorption tests were performed to evaluate the removal efficiency. The effect of pH, contact time, and initial Pb concentration was investigated during the optimisation process. The outcomes showed that GO had exceptional adsorption capabilities, eliminating over 95% of the Pb at its maximum efficiency. The adsorption kinetics pseudo-second-order model with a regression coefficient of R2 = 0.9999 illustrated a chemical adsorption mechanism. A monolayer adsorption mechanism is suggested by the equilibrium data’s good fit to the Langmuir isotherm (R2 = 0.9588). With its large surface area, abundance of functional groups, and strong adsorption affinity, the synthesised GO showed promising properties as an adsorbent for removing Pb from wastewater. This work provides critical knowledge for developing effective and ecologically responsible heavy metal removal adsorbents.
format Article
author Dayang Norafizan, Awang Chee
Nur Afiqah, Kamaludin
Lucy, Sylvester
Muhammad Shamil, Soffian
Faezrul Zackry, Abdul Halim
Claudeareena Garlding, Malien
Mohamed Afizal, Mohamed Amin
author_facet Dayang Norafizan, Awang Chee
Nur Afiqah, Kamaludin
Lucy, Sylvester
Muhammad Shamil, Soffian
Faezrul Zackry, Abdul Halim
Claudeareena Garlding, Malien
Mohamed Afizal, Mohamed Amin
author_sort Dayang Norafizan, Awang Chee
title SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER
title_short SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER
title_full SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER
title_fullStr SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER
title_full_unstemmed SYNTHESIS OF GRAPHENE OXIDE FROM SAGO WASTE FOR REMOVAL OF LEAD(II) IONS IN WATER
title_sort synthesis of graphene oxide from sago waste for removal of lead(ii) ions in water
publisher UMT Press
publishDate 2025
url http://ir.unimas.my/id/eprint/47646/1/JSSM.pdf
http://ir.unimas.my/id/eprint/47646/
https://jssm.umt.edu.my/wp-content/uploads/2025/02/JSSM-V20-N2-Article-7-Draf-2.pdf
http://doi.org/10.46754/jssm.2025.02.007
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