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Utilization of superparamagnetic iron oxide nanoparticles (SPIONs) impregnated activated carbon for removal of hexavalent chromium


Citation

Farhana, Aisha and Selvarani, A. Jenifer and Samrot, Anthony V. and Alsrhani, Abdullah and Mok, Pooi Ling (2022) Utilization of superparamagnetic iron oxide nanoparticles (SPIONs) impregnated activated carbon for removal of hexavalent chromium. Journal of Nanomaterials, 2022. art. no. 4326939. pp. 1-13. ISSN 1687-4110; ESSN: 1687-4129

Abstract

Chromium (Cr) is a toxic heavy metal present in industrial effluent which could cause degenerative diseases on ingestion. Therefore, elimination of Cr from contaminated water becomes essential to preserve and sustain the quality of life. In this study, superparamagnetic iron oxide nanoparticles (SPIONs) were impregnated on activated carbon and checked for enhanced removal of Cr(VI). Thus, granular activated carbon (N-GAC) of mesh size 8 ∗ 20 was impregnated with SPIONs to produce SPIONs impregnated activated carbon (Sp-GAC) and characterized using UV-VIS spectrophotometer, FT-IR, SEM-EDX, XRD, and VSM. Sp-GAC was found to be possessing superparamagnetic behavior, and it was used in batch adsorption study where the adsorption parameters like pH, concentration of adsorbent, and adsorbent-adsorbate were optimized. It was found that Cr(VI) adsorption was predominant at acidic pH (pH 3) for both cases; moreover, N-GAC showed better adsorption comparatively. Both the N-GAC and Sp-GAC adsorption were found to be obeying to Langmuir.


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Official URL or Download Paper: https://www.hindawi.com/journals/jnm/2022/4326939/

Additional Metadata

Item Type: Article
Divisions: Faculty of Medicine and Health Science
DOI Number: https://doi.org/10.1155/2022/4326939
Publisher: Hindawi Limited
Keywords: Superparamagnetic iron oxide nanoparticles; SPIONs; Activated carbon; Hexavalent chromium; Chromium removal; Water pollution; Environmental remediation; Adsorption; Adsorbent concentration; Nanoparticle impregnation; Water treatment; Wastewater remediation; Heavy metal removal; Adsorption isotherms; Surface area; Water purification; Sustainable remediation; Chitosan-coated SPIONs; Impregnation method; Adsorption efficiency; Clean water and sanitation
Depositing User: Mr. Mohamad Syahrul Nizam Md Ishak
Date Deposited: 21 Feb 2024 10:04
Last Modified: 21 Feb 2024 10:04
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1155/2022/4326939
URI: http://psasir.upm.edu.my/id/eprint/102570
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