Recent Progress on Semiconductor Heterogeneous Photocatalysts in Clean Energy Production and Environmental Remediation

Catalysts, Journal Year: 2023, Volume and Issue: 13(7), P. 1102 - 1102

Published: July 14, 2023

Semiconductor-based photocatalytic reactions are a practical class of advanced oxidation processes (AOPs) to address energy scarcity and environmental pollution. By utilizing solar as clean, abundant, renewable source, this process offers numerous advantages, including high efficiency, eco-friendliness, low cost. In review, we present several methods construct various photocatalyst systems with excellent visible light absorption efficient charge carrier separation ability through the optimization materials design reaction conditions. Then it introduces fundamentals photocatalysis in both clean generation remediation. other parts, introduce approaches enhance activity by applying different strategies, semiconductor structure modification (e.g., morphology regulation, co-catalysts decoration, doping, defect engineering, surface sensitization, heterojunction construction) tuning optimizing conditions (such concentration, initial contaminant pH, temperature, intensity, charge-carrier scavengers). Then, comparative study on performance recently examined photocatalysts applied production remediation will be discussed. To realize these goals, H2 via water splitting, CO2 reduction value-added products, dye, drug photodegradation lessen toxic chemicals, presented. Subsequently, report dual-functional for simultaneous pollutant reactions. brief discussion about industrial economical applications is described. The follows introducing application artificial intelligence machine learning selection an innovative issues. Finally, summary future research directions toward developing significantly improved efficiency stability provided.

Language: Английский

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Review of advanced oxidation processes for treating hospital sewage to achieve decontamination and disinfection

Chinese Chemical Letters, Journal Year: 2023, Volume and Issue: 35(1), P. 108714 - 108714

Published: June 21, 2023

Language: Английский

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Flexible construction of heteroatom-free g-C3N4/g-C3N4 homojunction with switching charge dynamics toward efficient photo-piezocatalytic performance

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 349, P. 123909 - 123909

Published: April 24, 2024

Language: Английский

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A review of g‐C₃N₄‐based photocatalytic materials for photocatalytic CO₂ reduction

Carbon Neutralization, Journal Year: 2024, Volume and Issue: 3(4), P. 557 - 583

Published: May 8, 2024

Abstract Currently, the concentration of carbon dioxide (CO 2 ) has exceeded 400 ppm in atmosphere. Thus, there is an urgent need to explore CO reduction and utilization technologies. Photocatalytic technology can convert valuable hydrocarbons (CH 4 , CH 3 OH, C H 5 etc.), realizing conversion solar energy chemical as well solving problems fossil fuel shortage global warming. Graphitic nitride (g‐C N ), a two‐dimensional nonmetallic semiconductor material, shows great potential field photoreduction due its moderate bandgap, easy synthesis method, low cost, visible light response properties. This review elaborates research progress g‐C ‐based photocatalysts for photocatalytic reduction. The modification strategies (e.g., morphology engineering, elemental doping, crystallinity modulation, cocatalyst modification, constructing heterojunction) application have been discussed detail. Finally, challenges development prospects materials are presented.

Language: Английский

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Regulation CN reduction of CO2 products selectivity by adjusting the number of V sites and mechanism exploration

Fuel, Journal Year: 2025, Volume and Issue: 388, P. 134509 - 134509

Published: Jan. 31, 2025

Language: Английский

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Graphene-like graphitic carbon nitride (g-C3N4) as a semiconductor photocatalyst: Properties, classification, and defects engineering approaches

Materials Today Sustainability, Journal Year: 2023, Volume and Issue: 25, P. 100633 - 100633

Published: Dec. 12, 2023

Language: Английский

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Insights on advanced g‐C₃N₄ in energy storage: Applications, challenges, and future

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(4)

Published: Feb. 5, 2024

Abstract Graphitic carbon nitride (g‐C 3 N 4 ) is a highly recognized two‐dimensional semiconductor material known for its exceptional chemical and physical stability, environmental friendliness, pollution‐free advantages. These remarkable properties have sparked extensive research in the field of energy storage. This review paper presents latest advances utilization g‐C various storage technologies, including lithium‐ion batteries, lithium‐sulfur sodium‐ion potassium‐ion supercapacitors. One key strengths lies simple preparation process along with ease optimizing structure. It possesses abundant amino Lewis basic groups, as well high density nitrogen, enabling efficient charge transfer electrolyte solution penetration. Moreover, graphite‐like layered structure presence large π bonds contribute to versatility preparing multifunctional materials different dimensions, element group doping, conjugated systems. characteristics open up possibilities expanding application devices. article comprehensively reviews progress on highlights potential future applications this field. By exploring advantages unique features , provides valuable insights into harnessing full applications.

Language: Английский

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Z-scheme based photoactive ZnO:TiO2:CdO:g-C3N4 nanocomposites for advance oxidation process

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1319, P. 139366 - 139366

Published: July 20, 2024

Language: Английский

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Exploring the Remarkably High Photocatalytic Efficiency of Ultra-Thin Porous Graphitic Carbon Nitride Nanosheets

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(1), P. 103 - 103

Published: Jan. 1, 2024

Graphitic carbon nitride (g-C3N4) is a metal-free photocatalyst used for visible-driven hydrogen production, CO2 reduction, and organic pollutant degradation. In addition to the most attractive feature of visible photoactivity, its other benefits include thermal photochemical stability, cost-effectiveness, simple easy-scale-up synthesis. However, performance still limited due low absorption at longer wavelengths in range, high charge recombination. addition, exfoliated nanosheets easily aggregate, causing reduction specific surface area, thus photoactivity. Herein, we propose use ultra-thin porous g-C3N4 overcome these limitations improve photocatalytic performance. Through optimization novel multi-step synthetic protocol, based on an initial treatment, nitric acid (HNO3), ultrasonication step, were able obtain very thin well-tuned material that yielded exceptional photodegradation methyl orange (MO) under light irradiation, without need any co-catalyst. About 96% MO was degraded as short 30 min, achieving normalized apparent reaction rate constant (k) 1.1 × 10−2 min−1mg−1. This represents highest k value ever reported using C3N4-based photocatalysts degradation, our thorough literature search. Ultrasonication not only prevents agglomeration but also tunes pore size distribution plays key role this achievement. We studied their evolution (HER), production 1842 µmol h−1 g−1. profound analysis all samples’ structure, morphology, optical properties, provide physical insight into improved optimized sample both reactions. research may serve guide improving activity two-dimensional (2D) semiconductors irradiation.

Language: Английский

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Structure and Defect Engineering Synergistically Boost Mo6+/Mo4+ Circulation of Sv-MoS2 Based Photo-Fenton-like system for Efficient Levofloxacin Degradation.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124430 - 124430

Published: July 21, 2024

Language: Английский

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