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

Recent Advancement in Electrocatalytic Water Splitting Facilitated by the Sulfide Oxidation Reaction

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 27, 2025

Language: Английский