Innovations in metal oxides-biochar nanoparticles for dye removal

Nano-Structures & Nano-Objects, Journal Year: 2024, Volume and Issue: 39, P. 101269 - 101269

Published: July 24, 2024

Language: Английский

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Efficient hydrogen evolution from g-C3N4 under visible light by in situ loading Ag2Se nanoparticles as co-catalysts

Catalysis Communications, Journal Year: 2023, Volume and Issue: 186, P. 106837 - 106837

Published: Dec. 31, 2023

The low charge separation and transfer of g-C3N4 hinders its industrial application in photocatalytic hydrogen evolution. Here, we design a novel co-catalyst strategy to integrate Ag2Se nanoparticles situ on the surface g-C3N4. optimized photocatalyst, 15% Ag2Se/g-C3N4, demonstrates remarkable efficiency evolution rate, reaching 1102.8 μmol·g−1·h−1, 7 times higher than To further elucidate activity present possible mechanism based various characterizations density functional theory calculations. This research offers potential insights for future development silver chalcogenide composites photocatalysis.

Language: Английский

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V‐/O‐Doping to Endow Ag₂S‐based Bimetal Oxysulfide with Sulfur Vacancies and Heterovalent States for Rapid Reduction of Organic and Cr(VI) Pollutants in the Dark

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Abstract A novel AgVOS oxysulfide catalyst for rapid catalytic reduction of toxic organic substances and Cr(VI) under dark is synthesized by a facile method. With the V/O co‐doping, doped Ag 2 S has effectively regulated electron transfer performance, hydrazine‐driven V 5+ ‐to‐V 4+ to disturb charge equilibrium, formed sulfur vacancy balanced oxygen doping maintain equilibrium. The acts as active site electrophilic nucleophilic reaction, while orbital hybridization O 2p 3p stabilizes valence state 2− . suitable ratio n (V /V ) during synthesis facilitate enhance reaction. co‐doped AgVOS‐3 prepared hydrazine content exhibits super performance 4‐NP (4‐nitrophenol), MB (methyl blue), MO orange), RhB (Rhodamine B, 20 ppm, 100 mL) dyes, which are completely reduced within 8, 10, 8 min, respectively. In comparison, Cr 6+ (50 also 6 min AgVOS‐3, indicating its good activity inorganic mixture pollutants. Furthermore, stability after cyclic tests efficiency 96.5%. Therefore, shows promising application industrial wastewater treatment.

Language: Английский

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Ag2S/TiO2 Z-scheme heterojunction under magnetic field: Enhanced photocatalytic degradation of tetracycline

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177752 - 177752

Published: Nov. 1, 2024

Language: Английский

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