Tuning of graphitic carbon nitride (g-C3N4) for photocatalysis: A critical review

Arabian Journal of Chemistry, Journal Year: 2023, Volume and Issue: 16(3), P. 104542 - 104542

Published: Jan. 5, 2023

Graphitic carbon nitride (g-C3N4) is a remarkable semiconductor catalyst that has attracted widespread attention as visible light photo-responsive, metal-free, low-cost photocatalytic material. Pristine g-C3N4 suffers fast recombination of photogenerated electron-hole pairs, low surface area, and insufficient absorption, resulting in efficiency. This review presents the recent progress, perspectives, persistent challenges development g-C3N4-based materials. Several approaches employed to improve absorption materials including metal non-metal doping, co-doping, heterojunction engineering have been extensively discussed. These approaches, general, were found decrease material's bandgap, increase reduce charge carrier recombination, promote thereby enhancing overall performance. The material widely used for different applications such hydrogen production, water splitting, CO2 conversion, purification. work also identified various limitations weaknesses associated with hinders its maximum utilization under illumination presented state-of-the-art solutions reported recently. summary this would add an invaluable contribution photocatalysis research facilitate efficient light-responsive semiconducting

Language: Английский

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Applying a novel advanced oxidation process of biochar activated periodate for the efficient degradation of bisphenol A: Two nonradical pathways

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 453, P. 139889 - 139889

Published: Oct. 19, 2022

Language: Английский

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A metal-organic framework (MOF) and graphene oxide (GO) based peroxymonosulfate (PMS) activator applied in pollutant removal

Process Safety and Environmental Protection, Journal Year: 2023, Volume and Issue: 171, P. 847 - 858

Published: Feb. 3, 2023

Language: Английский

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Construction of Tri‐Functional HOFs Material for Efficient Selective Adsorption and Photodegradation of Bisphenol A and Hydrogen Production

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(28)

Published: April 22, 2023

Abstract This study proposes the construction of porous nanomaterial (HOFs@Fe 3+ ) which anchors non‐noble metal ions Fe onto nanoscale rod‐like hydrogen‐bonded organic frameworks (HOFs) by electrostatic and coordination interactions. The high specific surface area abundance hydrogen‐bond adsorption active sites in pore structure HOFs@Fe facilitate strong interactions with double OH bisphenol A (BPA), resulting highest saturation BPA that has been reported so far (452 mg g ‐1 ). In addition, ordered conjugate stacking framework hydrogen bond variable valence properties create new pathways for efficient separation photogenerated carriers. results show can completely adsorb photodegrade 50 ppm within 20 min, owing to abundant acts both as accelerate mass transfer process catalytic ensure photodegradation be matched synergistically. Meanwhile, efficiency photocatalytic H 2 production reaches 21.55 mmol h co‐catalyst. tri‐functional material capacity, efficiency, activity successfully used solve long‐standing conflict between environment energy.

Language: Английский

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Boosting H2O2 production over carboxymethyl cellulose modified g-C3N4 via hydrogen-bonding-assisted charge transfer

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 478, P. 147509 - 147509

Published: Nov. 19, 2023

Language: Английский

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Metal‐Free Modification Overcomes the Photocatalytic Limitations of Graphitic Carbon Nitride: Efficient Production and In Situ Application of Hydrogen Peroxide

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(39)

Published: July 22, 2024

Abstract Graphitic carbon nitride (g‐C 3 N 4 ) assisted photocatalytic production of hydrogen peroxide (H 2 O has already attracted the interest many researchers due to its environmental sustainability. Nevertheless, inherent drawbacks g‐C limit progress. Metal‐free modification strategies, including nanostructure design, defect introduction, doping, and heterojunction construction, have been developed improve efficiency H production. Compared metal modification, metal‐free strategies avoid use precious metals leaching heavy ions, which advantages good stability friendliness. However, a comprehensive review from modified by is still lacking. This first recaps mechanism , photoexcitation, carrier separation redox reactions. Then, perspective advances in photocatalysts are presented, with special focus on kernel connection between different based pivotal stages Subsequently, recent applications ‐based for situ generated mainly water purification organic synthesis, briefly discussed. Finally, prospects envisioned hope that it will “something do” field

Language: Английский

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Revealing electron numbers-binding energy relationships in heterojunctions via in-situ irradiated XPS

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 356, P. 124223 - 124223

Published: May 22, 2024

Language: Английский

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Carbon nitride- and graphene-based materials for the photocatalytic degradation of emerging water pollutants

Materials Advances, Journal Year: 2024, Volume and Issue: 5(7), P. 2668 - 2688

Published: Jan. 1, 2024

This review highlights several advantages and improvement strategies for carbon nitride as a visible light-active photocatalyst graphene derivatives supporting material the photocatalytic degradation of emerging water pollutants.

Language: Английский

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Oxygen vacancy-induced hydroxyl dipole reorientation in hydroxyapatite for enhanced piezocatalytic activity

Nano Energy, Journal Year: 2022, Volume and Issue: 100, P. 107473 - 107473

Published: June 8, 2022

Language: Английский

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Iron-tungsten oxides modified oxygen-rich carbon nitride with defects S-scheme heterojunction for boosting photo-Fenton like removal of pollutants

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 451, P. 138629 - 138629

Published: Aug. 13, 2022

Language: Английский

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