Boosted spatial charge carrier separation of binary ZnFe2O4/S-g-C3N4 heterojunction for visible-light-driven photocatalytic activity and antimicrobial performance

Abstract

A potential method for removing toxins from contaminated wastewater, especially organic pollutants, is photo-catalysis. Here, a simple technique for producing zinc ferrite nanoparticles (ZnFe2O4 NPS) with varying quantities of sulphur doped graphitic carbon nitride nanocomposites (ZnFe2O4/S-g-C3N4 NCs) has been described. Then, using X-ray diffraction (XRD), TEM, EDX, XPS, photocurrent response, EIS, and Fourier Transform Infrared spectroscopy (FT-IR), the photo-catalytic activity of the produced nanoparticles (NPs) and nanocomposites (NCs) was examined and evaluated. The photo-catalytic activity of ZnFe2O4/S-g-C3N4 NCs was compared to a model pollutant dye, methylene blue, while degradation was evaluated spectrophotometrically (MB). Solar light has been used through irradiation as a source of lighting. The photocatalytic behaviour of the ZnFe2O4/S-g-C3N4 NCs photocatalyst was superior to that of genuine ZnFe2O4 and S-g-C3N4, which was attributed to synergic effects at the ZnFe2O4/S-g-C3N4 interconnection. Antimicrobial activity of ZnFe2O4/S-g-C3N4 against Gram-positive and Gram-negative bacteria under visible light was performed. In addition, these ZnFe2O4/S-g-C3N4 NCs show a lot of promise as an antibacterial agent.

Fabrication of Cr-ZnFe2O4/S-g-C3N4 Heterojunction Enriched Charge Separation for Sunlight Responsive Photocatalytic Performance and Antibacterial Study

“…A range of ZFG-50 nanocomposites was made by incorporating 7% Cr-ZnFe 2 O 4 with different concentrations of S-g-C 3 N 4 (10, 30, 50, 60, and 70 wt. %) via surfactant-assisted hydrothermal process [ 30 , 31 ]. For the preparation of 7%Cr-ZnFe 2 O 4 /10%S-g-C 3 N 4 , four solutions A, B, C, and D were made before synthesis.…”

Photocatalyzed Oxygenation Reactions with Organic Dyes: State of the Art and Future Perspectives

“…Catalysts 2023, 13, x FOR PEER REVIEW 3 of 22 In the framework of metal-free photocatalysts, graphitic carbon nitride (g-C3N4) is emerging as an innovative alternative in heterogeneous catalysis [21,22]. However, the engineering of such photoresponsive metal-free materials needs multiple time-consuming modifications.…”

Photo-Fenton Degradation of Tetracycline and Photoelectrochemical Properties of ZnFe2O4@ZnWO4 Heterostructure Composite Coupling

“…21 Therefore, to overcome these limitations, the construction of heterojunctions has been shown to be the most hopeful method to increase the photoexcited carrier separation efficiency and photocatalytic performance. 22 For example, Iqbal et al 23 prepared ZnFe 2 O 4 /S-g-C 3 N 4 NC composites with high Gram-positive and Gram-negative bacterial inhibitory activity under visible light. Dai et al 24 synthesized ZnFe 2 O 4 /g-C 3 N 4 (ZFOCN) step heterojunctions (S-scheme), with optimum removal of U(VI) by adsorptive photoreduction of up to 1892.4 mg g −1 with a removal rate of 94.62%.…”