Staff View: Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water

Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water

The presence of diclofenac sodium (DCF) residues in water streams poses significant risks to aquatic ecosystems and human health. The ecotoxicity of pharmaceutical contaminants can be mitigated by developing advanced materials to supplement conventional wastewater treatment methods. This study aims...

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Main Authors:	Saiful Adlee, Siti Aisyah, Abdul Rahman, Nur Nabihah, Ahmad, Mohammad Norazmi, Ahmad Noorden, Ahmad Fakhrurrazi, Iqbal, Anwar, Abdul Majid, Zaiton, Danial, Wan Hazman
Format:	Article
Language:	English English
Published:	Elsevier 2024
Subjects:	QD Chemistry
Online Access:	http://irep.iium.edu.my/118054/7/118054_Preparation%2C%20characterization%2C%20and%20adsorption%20mechanism.pdf http://irep.iium.edu.my/118054/8/118054_Preparation%2C%20characterization%2C%20and%20adsorption%20mechanism_Scopus.pdf http://irep.iium.edu.my/118054/ https://www.sciencedirect.com/science/article/abs/pii/S0167732224028216
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spelling	my.iium.irep.1180542025-01-03T12:17:12Z http://irep.iium.edu.my/118054/ Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water Saiful Adlee, Siti Aisyah Abdul Rahman, Nur Nabihah Ahmad, Mohammad Norazmi Ahmad Noorden, Ahmad Fakhrurrazi Iqbal, Anwar Abdul Majid, Zaiton Danial, Wan Hazman QD Chemistry The presence of diclofenac sodium (DCF) residues in water streams poses significant risks to aquatic ecosystems and human health. The ecotoxicity of pharmaceutical contaminants can be mitigated by developing advanced materials to supplement conventional wastewater treatment methods. This study aims to prepare and characterize the physicochemical properties of cogon grass-based cellulose nanofibers/graphene nanoplatelets (CNF/GnP) aerogels for the removal of DCF residues from aqueous solutions. CNF was successfully isolated from cogon grass through a series of processes, including bleaching, alkaline treatment, and TEMPO-mediated oxidation, followed by mechanical disintegration. Fourier Transform Infrared Spectroscopy (FTIR) revealed the composition of CNF and indicated the presence of physical crosslinking with GnP. Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) confirmed CNF diameters ranging from 1.1 to 5.3 nm. Thermogravimetric analysis (TGA) demonstrated an increase in thermal stability from raw cellulose (269.94 °C) to CNF aerogel (296.96 °C) and CNF/GnP aerogel (309.45 °C). Both CNF aerogel and CNF/GnP aerogel were applied for the adsorption of DCF. The adsorption capacity and removal efficiency of CNF/GnP aerogel (219.3 mg/g and 95.47 %) were comparable to those of CNF aerogel (204.2 mg/g and 88.81 %) under optimal conditions: pH 4, 0.045 g adsorbent dosage, and an initial DCF concentration of 10 mg/L, indicating that the CNF matrix plays a significant role in the adsorption process. The adsorption behaviour followed the Langmuir isotherm and pseudo-second-order kinetic models. This study demonstrates the potential of CNF aerogel and CNF/GnP aerogel as sustainable adsorbents for DCF removal, contributing to the development of green technologies in alignment with Sustainable Development Goals. Elsevier 2024-12-20 Article PeerReviewed application/pdf en http://irep.iium.edu.my/118054/7/118054_Preparation%2C%20characterization%2C%20and%20adsorption%20mechanism.pdf application/pdf en http://irep.iium.edu.my/118054/8/118054_Preparation%2C%20characterization%2C%20and%20adsorption%20mechanism_Scopus.pdf Saiful Adlee, Siti Aisyah and Abdul Rahman, Nur Nabihah and Ahmad, Mohammad Norazmi and Ahmad Noorden, Ahmad Fakhrurrazi and Iqbal, Anwar and Abdul Majid, Zaiton and Danial, Wan Hazman (2024) Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water. Journal of Molecular Liquids, 419. pp. 1-14. ISSN 0167-7322 E-ISSN 1873-3166 https://www.sciencedirect.com/science/article/abs/pii/S0167732224028216 10.1016/j.molliq.2024.126760
institution	Universiti Islam Antarabangsa Malaysia
building	IIUM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	International Islamic University Malaysia
content_source	IIUM Repository (IREP)
url_provider	http://irep.iium.edu.my/
language	English English
topic	QD Chemistry
spellingShingle	QD Chemistry Saiful Adlee, Siti Aisyah Abdul Rahman, Nur Nabihah Ahmad, Mohammad Norazmi Ahmad Noorden, Ahmad Fakhrurrazi Iqbal, Anwar Abdul Majid, Zaiton Danial, Wan Hazman Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water
description	The presence of diclofenac sodium (DCF) residues in water streams poses significant risks to aquatic ecosystems and human health. The ecotoxicity of pharmaceutical contaminants can be mitigated by developing advanced materials to supplement conventional wastewater treatment methods. This study aims to prepare and characterize the physicochemical properties of cogon grass-based cellulose nanofibers/graphene nanoplatelets (CNF/GnP) aerogels for the removal of DCF residues from aqueous solutions. CNF was successfully isolated from cogon grass through a series of processes, including bleaching, alkaline treatment, and TEMPO-mediated oxidation, followed by mechanical disintegration. Fourier Transform Infrared Spectroscopy (FTIR) revealed the composition of CNF and indicated the presence of physical crosslinking with GnP. Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) confirmed CNF diameters ranging from 1.1 to 5.3 nm. Thermogravimetric analysis (TGA) demonstrated an increase in thermal stability from raw cellulose (269.94 °C) to CNF aerogel (296.96 °C) and CNF/GnP aerogel (309.45 °C). Both CNF aerogel and CNF/GnP aerogel were applied for the adsorption of DCF. The adsorption capacity and removal efficiency of CNF/GnP aerogel (219.3 mg/g and 95.47 %) were comparable to those of CNF aerogel (204.2 mg/g and 88.81 %) under optimal conditions: pH 4, 0.045 g adsorbent dosage, and an initial DCF concentration of 10 mg/L, indicating that the CNF matrix plays a significant role in the adsorption process. The adsorption behaviour followed the Langmuir isotherm and pseudo-second-order kinetic models. This study demonstrates the potential of CNF aerogel and CNF/GnP aerogel as sustainable adsorbents for DCF removal, contributing to the development of green technologies in alignment with Sustainable Development Goals.
format	Article
author	Saiful Adlee, Siti Aisyah Abdul Rahman, Nur Nabihah Ahmad, Mohammad Norazmi Ahmad Noorden, Ahmad Fakhrurrazi Iqbal, Anwar Abdul Majid, Zaiton Danial, Wan Hazman
author_facet	Saiful Adlee, Siti Aisyah Abdul Rahman, Nur Nabihah Ahmad, Mohammad Norazmi Ahmad Noorden, Ahmad Fakhrurrazi Iqbal, Anwar Abdul Majid, Zaiton Danial, Wan Hazman
author_sort	Saiful Adlee, Siti Aisyah
title	Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water
title_short	Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water
title_full	Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water
title_fullStr	Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water
title_full_unstemmed	Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water
title_sort	preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water
publisher	Elsevier
publishDate	2024
url	http://irep.iium.edu.my/118054/7/118054_Preparation%2C%20characterization%2C%20and%20adsorption%20mechanism.pdf http://irep.iium.edu.my/118054/8/118054_Preparation%2C%20characterization%2C%20and%20adsorption%20mechanism_Scopus.pdf http://irep.iium.edu.my/118054/ https://www.sciencedirect.com/science/article/abs/pii/S0167732224028216
_version_	1821105175754964992
score	13.226497

Preparation, characterization, and adsorption mechanism of cogon grass-derived cellulose nanofibers/graphene nanoplatelets aerogels for diclofenac sodium removal from water

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