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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Enhanced photocatalytic hydrogen production performance of g-C3N4 with rich carbon vacancies

Applied Surface Science, Journal Year: 2024, Volume and Issue: 657, P. 159790 - 159790

Published: Feb. 27, 2024

Language: Английский

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Establishing photocatalysis-self-Fenton system over a S-scheme Fe/Fe2O3@CuBi2O4 for enhancing TC removal via in-situ generating H2O2 and Fe/Cu dual-metal electron cycle: Radical and non-radical pathways

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128675 - 128675

Published: July 3, 2024

Language: Английский

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Photocatalytic Self-Fenton System of g-C3N4-Based for Degradation of Emerging Contaminants: A Review of Advances and Prospects

Molecules, Journal Year: 2023, Volume and Issue: 28(15), P. 5916 - 5916

Published: Aug. 6, 2023

The discharge of emerging pollutants in the industrial process poses a severe threat to ecological environment and human health. Photocatalytic self-Fenton technology combines advantages photocatalysis Fenton oxidation through situ generation hydrogen peroxide (H2O2) interaction with iron (Fe) ions generate large number strong reactive oxygen species (ROS) effectively degrade environment. Graphite carbon nitride (g-C3N4) is considered as most potential photocatalytic reduction reaction (ORR) photocatalyst for H2O2 production due its excellent chemical/thermal stability, unique electronic structure, easy manufacturing, moderate band gap (2.70 eV). Hence, this review, we briefly introduce degradation mechanisms. In addition, modification strategy g-C3N4-based system related applications environmental remediation are fully discussed summarized detail. Finally, prospects challenges discussed. We believe that review can promote construction novel efficient systems well further application other research fields.

Language: Английский

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Defective metal–organic framework derived from the waste plastic bottles for rapid and efficient nitroimidazole antibiotics removal

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 650, P. 836 - 845

Published: July 12, 2023

Language: Английский

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Synthesis of Fe2O3/g-C3N4 composite with efficient photocatalytic degradation for methyl orange

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 159, P. 111890 - 111890

Published: Dec. 10, 2023

Language: Английский

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Advances in noble metal-modified g-C3N4 heterostructures toward enhanced photocatalytic redox ability

International Journal of Minerals Metallurgy and Materials, Journal Year: 2024, Volume and Issue: 31(11), P. 2368 - 2389

Published: Oct. 9, 2024

Language: Английский

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Tailored Citric Acid-Functionalized Carbon Nitride Homojunction-Immobilized Carboxymethyl Cellulose 3D Photocatalytic Hydrogels: A Multifaceted Approach toward Environmental Remediation

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(13), P. 5169 - 5185

Published: March 15, 2024

The facile development of highly efficient visible light active metal-free homojunction photocatalysts with phenomenal photoelectron migration is emerging as a prominent method for diverse energy and environmental remediation applications. Through an effective cross-linking technique, citric acid-functionalized g-C3N4 homojunction/carboxymethyl cellulose hydrogel beads (ICN/CMC beads) were prepared. photocatalytic studies ICN/CMC exhibited 87% tetracycline degradation in 40 min under irradiation. important advantages are their ease recovery reusability up to 12 cycles. capable producing 2341 μmol hydrogen peroxide 501 μmol/h·g ammonia production 60 predominant catalytic activity due the tuned bandgap photocatalyst, which facilitated separation electron–hole pairs hindered recombination charge carriers. Thus, affordable sustainable multimodal

Language: Английский

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Hydrogen Peroxide Heterolytic Cleavage Induced Gas Phase Photo-Fenton Oxidation of Nitric Oxide

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 29, 2024

Nitric oxide (NO) is one of the major air pollutants that may cause ecological imbalance and severe human disease. However, removal NO faces challenges low efficiency, high energy consumption, production toxic

Language: Английский

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Enhanced scavenger-free photocatalysis-self-Fenton degradation performance over B-doped NVs modified g-C3N4 via promoting Fe(II)/Fe(III) cycle

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128386 - 128386

Published: June 15, 2024

Language: Английский

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