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Alfakeer, M.
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article
Fabrication of Cr-ZnFe2O4/S-g-C3N4 Heterojunction Enriched Charge Separation for Sunlight Responsive Photocatalytic Performance and Antibacterial Study
Abstract
<p>There has been a lot of interest in the manufacture of stable, high-efficiency photocatalysts. In this study, initially Cr doped ZnFe<sub>2</sub>O<sub>4</sub> nanoparticles (NPs) were made via surfactant-assisted hydrothermal technique. Then Cr-ZnFe<sub>2</sub>O<sub>4</sub> NPs were modified by incorporating S-g-C<sub>3</sub>N<sub>4</sub> to enhance their photocatalytic efficiency. The morphological, structural, and bonding aspects were analyzed by XRD, FTIR, and SEM techniques. The photocatalytic efficiency of the functional Cr-ZnFe<sub>2</sub>O<sub>4</sub>/S-g-C<sub>3</sub>N<sub>4</sub> (ZFG) heterostructure photocatalysts was examined against MB under sunlight. The produced ZFG-50 composite has the best photocatalytic performance, which is 2.4 and 3.5 times better than that of ZnFe<sub>2</sub>O<sub>4</sub> and S-g-C<sub>3</sub>N<sub>4</sub>, respectively. Experiments revealed that the enhanced photocatalytic activity of the ZFG nanocomposite was caused by a more effective transfer and separation of photo-induced charges. The ZFG photocatalyst can use sunlight for treating polluted water, and the proposed modification of ZnFe<sub>2</sub>O<sub>4</sub> using Cr and S-g-C<sub>3</sub>N<sub>4</sub> is efficient, affordable, and environmentally benign. Under visible light, Gram-positive and Gram-negative bacteria were employed to ZFG-50 NCs’ antimicrobial activity. These ZFG-50 NCs also exhibit excellent antibacterial potential.</p>