Development of FeMnO3@Ag perovskite via sol-gel combustion for superior photocatalytic degradation of methyl orange under visible light irradiation

Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown, P. 130819 - 130819

Published: March 1, 2025

Language: Английский

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Synthesis and Characterization of a Novel Sol–Gel-Derived Ni-Doped TiO2 Photocatalyst for Rapid Visible Light-Driven Mineralization of Paracetamol

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(7), P. 530 - 530

Published: March 31, 2025

The increasing presence of pharmaceutical contaminants, such as paracetamol, in water sources necessitates the development efficient and sustainable treatment technologies. This study investigates photocatalytic degradation mineralization paracetamol under visible light using nickel-doped titanium dioxide (Ni–TiO2) catalysts synthesized via sol-gel method. were characterized through Raman spectroscopy, UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), surface area measurements. Ni doping enhanced absorption TiO2, reducing its band gap from 3.11 eV (undoped) to 2.49 at 0.20 wt.% loading, while analysis confirmed incorporation with anatase predominant phase. Ni(0.1%)-TiO2 catalyst exhibited highest activity, achieving 88% total organic carbon (TOC) removal (5 ppm) after 180 min optimal conditions (catalyst dosage, 3 g L−1). Stability tests demonstrated 84% retained efficiency over five cycles, a kinetic rate constant 0.010 min−1. Hydroxyl radicals identified main reactive species. maintained high performance tap water, 78.8% TOC removal. These findings highlight potential cost-effective, light-active photocatalyst for pollutants, promising scalability industrial applications.

Language: Английский

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Heterogeneous Photocatalysis for Advanced Water Treatment: Materials, Mechanisms, Reactor Configurations, and Emerging Applications

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(10), P. 5681 - 5681

Published: May 19, 2025

Heterogeneous photocatalysis has emerged as a versatile and sustainable technology for the degradation of emerging contaminants in water. This review highlights recent advancements photocatalysts design, including band gap engineering, heterojunction formation, plasmonic enhancement to enable visible-light activation. Various reactor configurations, such slurry, immobilized, annular, flat plate, membrane-based systems, are examined terms their efficiency, scalability, operational challenges. Hybrid systems combining with membrane filtration, adsorption, Fenton processes, biological treatments demonstrate improved removal efficiency broader applicability. Energy performance metrics quantum yield electrical energy per order discussed essential tools evaluating system feasibility. Special attention is given solar-driven reactors smart responsive materials, which enhance adaptability sustainability. Additionally, artificial intelligence machine learning approaches explored accelerators catalyst discovery process optimization. Altogether, these advances position key component future water treatment strategies, particularly decentralized low-resource contexts. The integration material innovation, data-driven optimization underlines potential contribute global efforts environmental protection development.

Language: Английский

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Methyl Orange Degradation Using Ag-Doped TiO₂, H₂O₂, and Hydrodynamic Cavitation

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

Language: Английский

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