Nanocomposite Fiber Based on Natural Material for Water Disinfection under Visible Light Irradiation


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Output type: Journal article

UM6P affiliated Publication?: Yes

Author list: Aziz, Faissal; El Achaby, Mounir; Aziz, Khalid; Ouazzani, Naaila; Mandi, Laila; Ghazzal, Mohamed Nawfal

Publisher: MDPI

Publication year: 2020

Journal: Nanomaterials (2079-4991)

Volume number: 10

Issue number: 6

ISSN: 2079-4991

eISSN: 2079-4991

Languages: English (EN-GB)


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Abstract

In the last decade, pathogenic bacteria and organic micropollutants have become a major issue in the water purification process. Heterogeneous photocatalysis is a low-cost and an ecofriendly process, which provides a sustainable solution for water treatment and its utilization in rural areas. In this context, we studied the generation and the surface engineering of polyacrylonitrile (PAN)/goethite composite nanofibers for photocatalytic water remediation under visible-light illumination. The photocatalytic activity was evaluated for dye (methylene blue) degradation and bacteria inactivation, as contaminant models, of the composite nanofibers. The PAN/goethite nanofibers were elaborated by an electrospinning technique, and the morphology and the composition, before and after spin coating, were investigated by Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray (EDX). The results showed partially intercalated structures of the PAN/goethite Composite-nano-fiber (CNF) were identified by SEM and EDX analysis. The composite nanofibers exhibited high photoefficiency upon dye bleaching (only 10% left after 5 h of illumination) and bacterial deactivationEscherichia coliandClostridium perfringens(4.4- and 3.5-fold, respectively, in less than 5 h). The steadiness and pliancy of the generated nanofibers provide a promising application in the continuous flow system.


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Last updated on 2021-22-06 at 23:19