Photocatalytic activity of CuO nanoparticles for organic and inorganic pollutants removal in wastewater remediation

Sibhatu, Assefu Kassegn and Weldegebrieal, Getu Kassegn and Sagadevan, Suresh and Tran, Nam Nghiep and Hessel, Volker (2022) Photocatalytic activity of CuO nanoparticles for organic and inorganic pollutants removal in wastewater remediation. Chemosphere, 300. ISSN 0045-6535, DOI https://doi.org/10.1016/j.chemosphere.2022.134623.

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Abstract

Heterogeneous photocatalysis is a promising technology for eradicating organic, inorganic, and microbial pollutants in water and wastewater remediation. It is a more preferable method to other conventional wastewater treatment approaches on account of its low cost, environmental benignity, ability to proceed at ambient temperature and pressure conditions, and capability to completely degrade pollutants under appropriate conditions into environmentally safe products. In heterogeneous photocatalysis, pollutant removal is mainly induced by in-situ generated reactive radicals and their subsequent attack when energetic radiation impinges on the semiconductor catalyst. As such, for the effective and economical removal of wastewater pollutants, the employed catalyst should have high photonic efficiency, less toxic, abundant, chemically and photochemically stableand visible light active. Copper (II) oxide (CuO) is one among such promising compounds and its photocatalytic performance has been hampered primarily by rapid recombination and slow mobility of photogenerated charge carriers. So, this review provides an overview of the strategies adopted to mitigate the aforementioned drawbacks and also other operational parameters to boost its catalytic activity towards the elimination of toxic organic and inorganic metal ion contaminants in an aqueous media.

Item Type: Article
Funders: Universiti Malaya [RU003-2021], ERC Synergy Grant Surface-Confined fast modulated Plasma for process and Energy intensification (SCOPE) from the European Commission [810182]
Uncontrolled Keywords: Cupric oxide; Heterogeneous photocatalysis; Organic pollutants; Toxic heavy metal ions; Wastewater remediation
Subjects: Q Science > QD Chemistry
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 29 Aug 2023 02:57
Last Modified: 29 Aug 2023 02:57
URI: http://eprints.um.edu.my/id/eprint/40991

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