ZnMn2O4 nanostructures: Synthesis via two different chemical methods, characterization, and photocatalytic applications for the degradation of new dyes

Heliyon, Journal Year: 2023, Volume and Issue: 9(11), P. e21979 - e21979

Published: Nov. 1, 2023

Water pollution have become contentious among researchers. By increasing industrialization, the availability of clean water has been reduced. Industrial dyestuffs contribute to escalation environmental and are largest group organic compounds. The aim present work is synthesis nanostructures that accelerate removal dyes from water. To reach this aim, first, ZnMn2O4 were synthesized by hydrothermal co-precipitation methods using maleic acid phenylalanine as a capping agent. Second, characterized. XRD analysis revealed formation with diameters about 32.3 nm. SEM showed agglomerated spherical lower than 50 EDX confirmed purity prepared samples presence Zn, Mn, O. FT-IR bonding between Mn O at 620 cm-1. antiferromagnetic behaviors due super-exchange interactions manganese ions. Finally, photocatalytic behavior was investigated for degradation anionic cationic dyes. results tests two as-prepared via different similar. exhibit promising activity in 0.03 g photocatalyst dye solution 10 ppm concentration. We introduced these conditions optimum achieved maximum decolorization (92.43 %) MV after 90 min. Also, we repeated six consecutive reaction cycles observed little loss reactions. related result high stability photocatalyst. performed scavenging experiments evaluate active species involved process plausible mechanisms. decreased TBA BQ, respectively. This decrease indicated OH° O2°- radicals important process.

Language: Английский

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Light-absorption-driven photocatalysis and antimicrobial potential of PVP-capped zinc oxide nanoparticles

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Aug. 24, 2023

Toxic dyes in water bodies and bacterial pathogens pose serious global challenges to human health the environment. Zinc oxide nanoparticles (ZnO NPs) demonstrate remarkable photocatalytic antibacterial potency against reactive strains. In this work, PVP-ZnO NPs have been prepared via co-precipitation method using polyvinylpyrrolidone (PVP) as a surfactant. The NPs' microstructure morphology were studied X-ray diffraction (XRD), having size of 22.13 nm. High-resolution transmission electron microscope (HR-TEM) field emission scanning microscopy (FESEM) analysis showed spherical-shaped with sizer ranging from 20 30 Fourier Transform Infrared Spectroscopy (FT-IR) confirmed hybrid nature NPs, UV-Vis spectroscopy an absorption peak at 367 exhibited high activity, achieving 88% nearly 95% degradation red-141 azo dye 10 mg catalyst dosages, respectively. properties demonstrated Escherichia coli Bacillus subtilis, inhibition zones 24 mm mm, These findings suggest that can be effectively used for treatment, targeting both pathogenic contaminants.

Language: Английский

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Ultrasound and defect engineering-enhanced nanozyme with high laccase-like activity for oxidation and detection of phenolic compounds and adrenaline

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133126 - 133126

Published: Dec. 5, 2023

Language: Английский

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Construction of visible light-driven Eu-doped BiOBr hierarchical microflowers for ameliorated photocatalytic 2,4-dichlorophenol and pathogens decomposition with synchronized hexavalent chromium reduction

Materials Today Sustainability, Journal Year: 2023, Volume and Issue: 22, P. 100340 - 100340

Published: Feb. 2, 2023

Language: Английский

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Fabrication of CuO/ZnO heterojunction photocatalyst for efficient photocatalytic degradation of tetracycline and ciprofloxacin under direct sun light

Environmental Nanotechnology Monitoring & Management, Journal Year: 2023, Volume and Issue: 20, P. 100863 - 100863

Published: Aug. 7, 2023

Language: Английский

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