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Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture

Amino acids-functionalized solid porous materials are promising adsorbents for CO2 capture but could not be considered economically viable for large scale application. This study investigated the feasibility of utilizing egg white as an alternative cheap source to commercial amino acids, as a surfac...

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Main Authors:	Nur Syahirah, Mohamed Hatta , Farihahusnah, Hussin , Gew, Lai Ti , Mohamed, Kheireddine Aroua
Format:	Article
Published:	Elsevier 2023
Subjects:	QD Chemistry QP Physiology TD Environmental technology. Sanitary engineering
Online Access:	http://eprints.sunway.edu.my/2677/ https://doi.org/10.1016/j.seppur.2023.123468
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spelling	my.sunway.eprints.26772024-06-24T01:00:00Z http://eprints.sunway.edu.my/2677/ Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture Nur Syahirah, Mohamed Hatta * Farihahusnah, Hussin * Gew, Lai Ti * Mohamed, Kheireddine Aroua * QD Chemistry QP Physiology TD Environmental technology. Sanitary engineering Amino acids-functionalized solid porous materials are promising adsorbents for CO2 capture but could not be considered economically viable for large scale application. This study investigated the feasibility of utilizing egg white as an alternative cheap source to commercial amino acids, as a surface modifier to enhance the adsorption capacity of palm shell activated carbon. The adsorbent was successfully prepared via facile activation process and was evaluated for its CO2 adsorption capacity using a fixed-bed column system. The effects of egg white loading, impregnation ratio, adsorption temperature, feed gas flow rate and CO2 inlet concentration were examined. The best sample prepared with 10 wt.% of egg white (ACEW-10) exhibited remarkable CO2 uptake enhancement by 76%, at 25 °C and 1 atm. Characterization study performed using scanning electron microscope, surface area and pore volume analyzer, elemental analyzer, Fourier transform infrared spectroscopy, temperature programmed desorption and thermogravimetric analysis evidently showed that increase in CO2 adsorption capacity was attributed to the introduction of amide functional group of egg white on the surfaces of activated carbon. The adsorbent demonstrated good recyclability over five consecutive adsorption–desorption cycles with >93% regeneration efficiency. All findings indicate that egg white-impregnated activated carbon is a promising green adsorbent for CO2 capture which further allows for potential reutilization of egg white industrial wastes. This research also aims to attract more researchers to explore on other possible natural sources of amino acids for the development of low-cost, sustainable and eco-friendly CO2 adsorbents. Elsevier 2023 Article PeerReviewed Nur Syahirah, Mohamed Hatta * and Farihahusnah, Hussin * and Gew, Lai Ti * and Mohamed, Kheireddine Aroua * (2023) Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture. Separation and Purification Technology, 313. ISSN 1873-3794 https://doi.org/10.1016/j.seppur.2023.123468 10.1016/j.seppur.2023.123468
institution	Sunway University
building	Sunway Campus Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Sunway University
content_source	Sunway Institutional Repository
url_provider	http://eprints.sunway.edu.my/
topic	QD Chemistry QP Physiology TD Environmental technology. Sanitary engineering
spellingShingle	QD Chemistry QP Physiology TD Environmental technology. Sanitary engineering Nur Syahirah, Mohamed Hatta * Farihahusnah, Hussin * Gew, Lai Ti * Mohamed, Kheireddine Aroua * Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture
description	Amino acids-functionalized solid porous materials are promising adsorbents for CO2 capture but could not be considered economically viable for large scale application. This study investigated the feasibility of utilizing egg white as an alternative cheap source to commercial amino acids, as a surface modifier to enhance the adsorption capacity of palm shell activated carbon. The adsorbent was successfully prepared via facile activation process and was evaluated for its CO2 adsorption capacity using a fixed-bed column system. The effects of egg white loading, impregnation ratio, adsorption temperature, feed gas flow rate and CO2 inlet concentration were examined. The best sample prepared with 10 wt.% of egg white (ACEW-10) exhibited remarkable CO2 uptake enhancement by 76%, at 25 °C and 1 atm. Characterization study performed using scanning electron microscope, surface area and pore volume analyzer, elemental analyzer, Fourier transform infrared spectroscopy, temperature programmed desorption and thermogravimetric analysis evidently showed that increase in CO2 adsorption capacity was attributed to the introduction of amide functional group of egg white on the surfaces of activated carbon. The adsorbent demonstrated good recyclability over five consecutive adsorption–desorption cycles with >93% regeneration efficiency. All findings indicate that egg white-impregnated activated carbon is a promising green adsorbent for CO2 capture which further allows for potential reutilization of egg white industrial wastes. This research also aims to attract more researchers to explore on other possible natural sources of amino acids for the development of low-cost, sustainable and eco-friendly CO2 adsorbents.
format	Article
author	Nur Syahirah, Mohamed Hatta * Farihahusnah, Hussin * Gew, Lai Ti * Mohamed, Kheireddine Aroua *
author_facet	Nur Syahirah, Mohamed Hatta * Farihahusnah, Hussin * Gew, Lai Ti * Mohamed, Kheireddine Aroua *
author_sort	Nur Syahirah, Mohamed Hatta *
title	Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture
title_short	Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture
title_full	Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture
title_fullStr	Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture
title_full_unstemmed	Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture
title_sort	enhancing surface functionalization of activated carbon using amino acids from natural source for co2 capture
publisher	Elsevier
publishDate	2023
url	http://eprints.sunway.edu.my/2677/ https://doi.org/10.1016/j.seppur.2023.123468
_version_	1802980691996049408
score	13.211869

Enhancing surface functionalization of activated carbon using amino acids from natural source for CO2 capture

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