Biohydrogen production with utilisation of magnetite nanoparticles embedded in granular activated carbon from coconut shell

Mohd Jamaludin, Nina Farhana and Jamali, Nur Syakina and Abdullah, Luqman Chuah and Engliman, Nurul Sakinah and Abdul, Peer Mohamed (2023) Biohydrogen production with utilisation of magnetite nanoparticles embedded in granular activated carbon from coconut shell. International Journal of Hydrogen Energy, 48. pp. 11695-11708. ISSN 0360-3199

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Abstract

This study aims to utilize magnetite nanoparticles (MNP) embedded in granular activated carbon (GAC) originating from coconut shells as microbial support carriers in thermophilic biohydrogen production. MNP can facilitate intracellular electron transportation while providing essential nutrition for microbial growth. Response Surface Methodology (RSM) with a Central Composite Design was used to investigate the simultaneous effect of three variables; Ni:Fe (0.25e0.80), MNP:GAC (0.01e0.03) and type of GAC (GAC-O or GAC-C) on the hydrogen productivity rate (HPR). Biohydrogen content in the biogas to range from 22.25 to 64.71%. The quadratic model was well fitted (R-squared>0.80) with a confidence level higher than 90%. The optimum magnetite GAC was GAC-O as the preferred GAC at Ni:Fe (0.53) and MNP:GAC (0.02), with HPR of 20.33 ± 0.32 ml H2/L.h. Magnetite GAC exhibited a better biohydrogen productivity rate by 63.99% compared to non-magnetite GAC. The developed magnetite GAC shown a high potential to improve biohydrogen production.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Optimisation Dark fermentation Biohydrogen production Response surface methodology Magnetite granular activated carbon Coconut shell
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TP Chemical technology T Technology > TP Chemical technology > TP500 Fermentation industries. Beverages. Alcohol
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr Nurul Sakinah Engliman
Date Deposited:	22 Nov 2023 17:53
Last Modified:	08 Jan 2024 08:31
URI:	http://irep.iium.edu.my/id/eprint/107821

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