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

Arabian Journal of Chemistry, Год журнала: 2023, Номер 16(3), С. 104542 - 104542

Опубликована: Янв. 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

Язык: Английский

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Ferrocene-Mediated Photocatalytic Annulation of N-Sulfonyl Ketimines on a Polycrystalline WSe₂ Semiconductor Photocatalyst

ACS Catalysis, Год журнала: 2023, Номер 13(19), С. 13071 - 13076

Опубликована: Сен. 22, 2023

A merger of heterogeneous polycrystalline WSe2 semiconductor photocatalysis and homogeneous ferrocene redox catalysis for the cascade radical coupling-annulation reactions was established. In redox-mediated photocatalysis, can improve separation photogenerated hole–electron pairs on by consuming hole via formation a cation, which triggered molecular transformations. Various benzo[e]imidazo[1,5-c][1,2,3]oxathiazine 5,5-dioxides were formed through semiheterogeneous three-component reaction N-sulfonyl ketimines, N-arylglycines, formaldehyde.

Язык: Английский

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Semi-heterogeneous g-C₃N₄/NaI dual catalytic C–C bond formation under visible light

Green Chemistry, Год журнала: 2023, Номер 25(8), С. 3292 - 3296

Опубликована: Янв. 1, 2023

The semi-heterogeneous g-C 3 N 4 /NaI dual catalytic system driven C–C bond formation between quinoxalin-2(1 H )-ones and arylhydrazines under blue light irradiation is reported for the first time.

Язык: Английский

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Recent advances in semiconductor heterojunctions: a detailed review of the fundamentals of photocatalysis, charge transfer mechanism and materials

RSC Applied Interfaces, Год журнала: 2023, Номер 1(1), С. 43 - 69

Опубликована: Сен. 27, 2023

Semiconductor heterojunctions are pivotal in determining the overall photocatalytic efficiency. This review explores recent advances diverse heterojunction types, charge transfer mechanisms and materials.

Язык: Английский

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Covalent organic frameworks and their composites as multifunctional photocatalysts for efficient visible-light induced organic transformations

Coordination Chemistry Reviews, Год журнала: 2022, Номер 472, С. 214774 - 214774

Опубликована: Авг. 23, 2022

Язык: Английский

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Copper-decorated covalent organic framework as a heterogeneous photocatalyst for phosphorylation of terminal alkynes

Green Chemistry, Год журнала: 2022, Номер 24(10), С. 4071 - 4081

Опубликована: Янв. 1, 2022

A copper decorated covalent organic framework has been prepared and identified as an efficient heterogeneous photocatalyst for the phosphorylation of terminal alkynes.

Язык: Английский

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Graphitic carbon nitride-based nanostructures as emergent catalysts for carbon monoxide (CO) oxidation

Green Chemistry, Год журнала: 2023, Номер 25(4), С. 1276 - 1310

Опубликована: Янв. 1, 2023

This is the first review that emphasizes engineering of carbon nitride-based catalysts for thermal, electrochemical, and photoelectrochemical CO oxidation reactions experimentally theoretically.

Язык: Английский

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Structural Motifs in Covalent Organic Frameworks for Photocatalysis

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Март 10, 2024

Abstract Covalent organic frameworks (COFs) attract significant attention due to their ordered, crystalline, porous, metal‐free, and predictable structures. These unique characteristics offer great opportunities for the diffusion transmission of photogenerated charges during photocatalysis. Currently, a considerable number COFs are used as metal‐free semiconductor photocatalysts. This review aims understand relationships between structure photocatalysis performance provides in‐depth insight into synthetic strategy improve performance. Subsequently, focuses on structural motif in sustainable photocatalytic hydrogen evolution, carbon dioxide reduction, peroxide generation, compound transformations. Last, conjunction with progress achieved challenges yet be overcome, candid discussion is undertaken regarding field COF photocatalysis, accompanied by presentation potential research avenues future directions. seeks provide readers comprehensive understanding pivotal role robust guidance innovative utilization

Язык: Английский

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Visible light-driven C–H arylation of heteroarenes with aryl diazonium salts in water catalyzed by a Z-scheme CuInS₂/K-C₃N₄ heterojunction

Green Chemistry, Год журнала: 2024, Номер 26(8), С. 4803 - 4810

Опубликована: Янв. 1, 2024

Z-scheme CuInS 2 /K-C 3 N 4 heterojunction has been designed and confirmed as efficient heterogeneous photocatalyst for arylation of heteroarenes with aryl diazonium salts in water under visible light irradiation to give arylated high yields.

Язык: Английский

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N‐Hydroxyphthalimide/TiO2 Catalyzed Addition of Ethers, Alkylarenes and Aldehydes to Azodicarboxylates under Visible Light

Chemistry - A European Journal, Год журнала: 2025, Номер unknown

Опубликована: Янв. 31, 2025

The addition of carbon-centered radicals to double bonds is one the most atom-efficient approaches formation new C-C or C-heteroatom bonds. Existing for generation often require elevated temperatures, UV radiation expensive transition metal catalysts. In this work, a photocatalytic system based on heterogeneous TiO2 catalyst and redox organocatalyst N-hydroxyphthalimide proposed from C(sp3)-H substrates aldehydes at room temperature under visible light irradiation. developed approach was successfully applied ethers, alkylarenes azodicarboxylates. Titanium oxide acts as photocatalyst, producing phthalimide-N-oxyl N-hydroxyphthalimide, thereby enabling organocatalytic process in solution. Phthalimide-N-oxyl act catalytically active species that cleave C-H form radicals.

Язык: Английский

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