S-scheme heterojunction photocatalysts: Mechanism, challenges and opportunities

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 521, P. 216177 - 216177

Published: Aug. 29, 2024

Language: Английский

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Empowering wastewater treatment with step scheme heterojunction ternary nanocomposites for photocatalytic degradation of nitrophenol

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 26, 2025

The ongoing challenge of water pollution necessitates innovative approaches to remove organic contaminants from wastewater. In this work, new two-dimensional S-scheme heterojunction photocatalysts Bi2O3/CdS and MoS2/Bi2O3/CdS that are intended for the effective photocatalytic destruction 4-nitrophenol, a dangerous pollutant, synthesized characterized. Utilizing solvothermal method, successfully generated these ternary nanocomposites, which were characterized through various techniques including X-ray diffraction (XRD), scanning electron microscopy (SEM), photoelectron spectroscopy (XPS), high resolution transmission electronmicroscopy (HRTEM), Brunauer-Emmett-Telle (BET) diffuse reflectance (DRS). Our results demonstrated achieved an 86% degradation rate while composite exhibited exceptional performance, achieving nearly complete (99%) within 120 min under visible light irradiation. Most importantly improved activity originated release internal electric field in heterojunction. This enhanced is attributable synergistic effects heterojunctions facilitate more charge separation generation with OP RP confirmed synthesis using S-scheme. further by XPS, DRS, XPS-VB photocurrent response. These findings highlight promising application advanced real-world wastewater treatment processes, offering sustainable solution combat pollution.

Language: Английский

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Photocatalysis for Sustainable Nitrogen Fixation: Fundamentals, Catalyst Design, Nanoarchitectonics, Applications, and Future Prospects

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

Published: Feb. 5, 2025

Abstract Photocatalytic nitrogen fixation has evolved as potential sustainable technique for producing ammonia in contrast to Haber‐Bosch (HB) process. In this process, semiconductor‐based materials are utilized the presence of light and water, thereby making it less energy‐intensive more eco‐friendly. However, photocatalytic have several disadvantages, including limited chemisorption activation nitrogen, low absorption, rapid charge recombination, sluggish kinetics. To overcome these issues, design catalyst tailoring active surface sites vital so that enhanced performance can be achieved. Also, there is debate about correct determination due interference by nitrogenous impurities. Taking all factors into consideration, review examines recent reports on defects modified (vacancy doping), facet‐engineered, heterojunction‐based catalysts fixation. The different quantification techniques like Nessler's reagent, indophenol method, ion chromatography (IC), etc. been discussed detail along with issues associated them. Finally, existing challenges outlook emerging technology presented. It expected will assist researchers understanding current state field effectively implementing pave way future advancements.

Language: Английский

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Unveiling the potential of step-scheme and Type II photocatalysts in dinitrogen reduction to ammonia

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 957, P. 177903 - 177903

Published: Dec. 1, 2024

Language: Английский

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Recent insights on Z-scheme and S-scheme photocatalysts for nitrogen conversion to ammonia: A review

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 28, P. 101043 - 101043

Published: Nov. 17, 2024

Language: Английский

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Modification strategies of Bi-based photocatalysts for nitrogen fixation: A mini review

Materials Science in Semiconductor Processing, Journal Year: 2024, Volume and Issue: 188, P. 109249 - 109249

Published: Dec. 29, 2024

Language: Английский

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