Synthesis and characterization of Ce-BiOBr/Bi2S3 catalyst with enhanced catalytic activity for organic dye reduction under dark

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113383 - 113383

Published: June 20, 2024

Language: Английский

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Cellulose‐Supported SnW(S,O)₄ Bimetal Sulfo‐Oxide Catalysts for the Catalytic Reduction of Pollutants in the Dark

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 1, 2025

Abstract In this paper, cellulose‐supported SnW(S,O) 4 bimetal sulfo‐oxide catalysts (labeled as SnWSO‐C or SW@C) with exceptional catalytic performance in the reduction of MB, RhB, and Cr(VI) presence NaBH under dark conditions were synthesized via an in‐situ hydrolysis method. The catalyst system diverse tree species Pinus massoniana (Pm), Populus tomentosa Carrière (Ptc), Rice hull (Rh), Phyllostachys edulis (Pe) was investigated. 100 mL solutions MB (20 ppm), RhB (50 ppm) completely reduced by SW@Cotton, SW@Pe, SW@Rh, SW@Ptc, SW@Pm within 10, 7, 13, 4, min for MB; 8, RhB; 5, 8 Cr(VI), respectively. Among them, SW@Pe exhibits highest efficiency excellent stability, maintaining a removal rate 96% after six cycles. superior attributed unique properties cellulose, characterized low crystallinity (53.25%), minimal ash content (0.15%), lowest degree polymerization (1267). These features facilitated improved dispersion SnWSO sulfo‐oxide, leading to smaller crystal size, lower electrochemical impedance (2.24 Ω), larger electrochemically active surface area (21.86 mF/cm 2 ). This study demonstrates potential wastewater treatment, which is significant advancing future research on environmental pollution management using biomass‐based materials.

Language: Английский

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Mn/S co-doped BiOCl regulated with a hydrophobic-to-superhydrophilic transition and oxygen-vacancy defects for assisting photocatalytic hydrogen evolution

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161621 - 161621

Published: March 1, 2025

Language: Английский

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Synergistic Tuning of Heterovalent States and Oxygen-Vacancy Defect Engineering in Hydrophilic W-Doped Sb₂OS₂ for Enhanced Nitrogen Photoreduction to Ammonia

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(43), P. 58764 - 58779

Published: Oct. 16, 2024

Nitrogen fixation reaction via photocatalysis offers a green and promising strategy for renewable NH3 synthesis, catalysts with high-efficiency photocatalytic properties are essential to the process. Herein, we demonstrate W-doped Sb2OS2 bimetal oxysulfide catalyst (labeled as SbWOS) abundant oxygen vacancies, heterovalent metal states, hydrophilic surfaces nitrogen photoreduction ammonia. The SbWOS-3 suitable W-doping exhibited excellent activity of 408.08 μmol·g-1·h-1 an apparent quantum efficiency (AQE) 1.88% at 420 nm solar-to-ammonia (STA) conversion 0.082% in pure water under AM1.5G light irradiation. not only transforms hydrophobic into catalyst, making it easier H2O molecules adsorbed on SbWOS surface catalyzed protons, but also endows rich acting active sites trapping activating N2 molecule, produce protons reduction reaction. hydrazine drives which acts photogenerate electrons quickly hopping between W5+ W6+ transfer This study provides feasible scheme applying vacancy defects, hydrophobic-to-hydrophilic wetting engineering

Language: Английский

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Hydrazine-driven cation valence regulation and oxygen defect engineering in sulfur-doped CoMoO4·0.9H2O for highly efficient reduction of toxic organics and hexavalent chromium under dark

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 37, P. 102028 - 102028

Published: April 1, 2024

Language: Английский

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Synergistic engineering of heterovalent states and sulfur-vacancy defects in Co/O co-doped ZnS for enhanced photocatalytic hydrogen evolution

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 98, P. 944 - 956

Published: Dec. 13, 2024

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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Ternary-heterojunction In2S3/Bi2S3/BiOBr catalyst with interfacial effect to enhance the photocatalytic degradation of organic dyes

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 107050 - 107050

Published: Jan. 21, 2025

Language: Английский

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B@LGTs of Nd, Eu, Er, and Yb lanthanides with physicochemical interfacing for enhanced photocatalytic reduction of fluorescent dyes, transition metal ions, and quinonoid phenolphthalein

RSC Advances, Journal Year: 2025, Volume and Issue: 15(9), P. 6593 - 6633

Published: Jan. 1, 2025

(a) Anodic B@LGTs and (b) cathodic BBR electronic flow through thinly adhered water dipoles with robust FRET for PCR supported (c) zero UV absorbance, (d) recycling wastewater via photocatalysis (e) extended morphology from LSNRs to B@LGTs.

Language: Английский

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Synergistic Hydrogen Peroxide‐Driven Cation Valence Regulation and La/O Co‐Doped SnS‐Based Oxysulfide Catalyst for Efficient Catalytic Reduction of Toxic Organics and Cr(VI) Under Dark

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Abstract A novel La/O co‐doped SnS oxysulfide catalyst (labeled SnLaOS) with heterovalent tin states and sulfur vacancy defects is successfully synthesized for effective catalytic reduction of toxic organics heavy metal ions NaBH 4 in the dark. hydrogen peroxide‐driven SnLaOS suitable Sn 2+ /Sn 4+ exhibited excellent capability. The 100 mL 20 ppm 4‐nitrophenol (4‐NP) 50 rhodamine‐B (RhB), methylene blue (MB), methyl orange (MO), Cr(VI) solution are entirely reduced by 5 mg SnLaOS‐3 within 10, 12, 16, 14 min, respectively, durable stability. Synergistic transition La 3+ ‐cation O 2− ‐anion adjusted energy bandgap introduced defects, regulated ratio. vacancies provide active sites adsorbed proton pollutants reduction, facilitates electrons efficient transfer through electron hopping between reduction. This study provides a water treatment.

Language: Английский

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