A Comprehensive Review on the Boosted Effects of Anion Vacancies in Photocatalytic Solar Water Splitting: Focus on g-C₃N₄ with Carbon and Nitrogen Vacancies

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(10), P. 8406 - 8436

Published: May 1, 2024

As one of the best sustainable approaches for visible-light production hydrogen (H2) to meet energy demands, semiconductor-based photocatalysis has received broad interest in recent decades. The fundamental restrictions graphitic carbon nitride (g-C3N4) as a promising metal-free photocatalytic semiconductor water splitting, like insufficient harvesting and high electron–hole (e/h) pairs recombination, have limited its applications this goal. In regard, optical, charge separation, surface features g-C3N4 can be tuned via engineering C/N vacancies, which is reviewed here splitting by g-C3N4. Reports confirm that enhanced resulting from vacancies are helpful adsorption on surface, improving water-splitting kinetics. First Review, improvements structural optical characteristics introducing especially nitrogen will discussed illustrate better performance. Then, various strategies creating controlling reviewed. critical roles optimizing performance also described, finally advances defective oxidation addressed.

Language: Английский

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Optimization of Schottky barrier height and LSPR effect by dual defect induced work function changes for efficient solar-driven hydrogen production

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151822 - 151822

Published: May 1, 2024

Language: Английский

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Phosphorylated g-C3N4/sulfur self-doped g-C3N4 homojunction carboxymethyl cellulose beads: An efficient photocatalyst for H2O2 production

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 663, P. 1087 - 1098

Published: Feb. 22, 2024

Language: Английский

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Unveiling the synergistic doping and heterojunction of P-doped C3N5/CdS towards solar-driven hydrogen generation

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 101, P. 636 - 649

Published: Jan. 5, 2025

Language: Английский

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N-doped carbon layer promoted charge separation/transfer in WP/g-C3N4 heterostructures for efficient H2 evolution and 4-nitrophenol removal

Carbon, Journal Year: 2022, Volume and Issue: 202, P. 378 - 388

Published: Nov. 5, 2022

Language: Английский

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Surface-Induced Engineering: P-Induced Formation of Surface Bonding States Based on the ZIF Synthesis Strategy for Photocatalytic Hydrogen Evolution

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(32), P. 12809 - 12821

Published: Aug. 1, 2022

The development of clean energy is one the effective strategies to solve carbon peak and neutrality. severe recombination photogenerated carriers fundamental reasons that hinder photocatalysis. In this work, NiCo-MOF/ZIF was obtained by "ZIF on MOF" strategy for first time, a stable bonding state surface P(δ-)-Co/Ni(δ+)-O(δ-) formed catalyst one-step oxidation-phosphorus doping strategy. X-ray photoelectron spectroscopy technique proves phosphorus forms unique CoO-NiO. novel can effectively inhibit increase migration rate electrons, which accelerates process photocatalytic hydrogen evolution. Photocatalytic evolution kinetics verifies formation states accelerate evolution, durability verified cycling experiments. This work provides new synthesis, horizons, design catalysts

Language: Английский

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The assessment of graphitic carbon nitride (g-C3N4) materials for hydrogen evolution reaction: Effect of metallic and non-metallic modifications

Separation and Purification Technology, Journal Year: 2022, Volume and Issue: 305, P. 122413 - 122413

Published: Oct. 22, 2022

Language: Английский

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Metal–organic framework‐based heterojunction photocatalysts for organic pollutant degradation: design, construction, and performances

Journal of Chemical Technology & Biotechnology, Journal Year: 2022, Volume and Issue: 97(10), P. 2675 - 2693

Published: April 12, 2022

Abstract Heterogeneous photocatalysis has been considered one of the most attractive alternative routes to transforming naturally abundant, clean, and sustainable solar energy into chemical energy. Nowadays, popular heterogeneous photocatalyst, titanium dioxide, already found applications for water splitting produce hydrogen oxygen, degradation organic pollutants, air purification, creation self‐cleaning coatings. However, TiO 2 a significant limitation: large band gap (3.0–3.4 eV) that makes it impossible use anything other than ultraviolet illumination initiate photocatalytic processes. With focus on efficient solar‐energy utilization, development new photocatalysts are sensitive visible light is an important direction in theory practice photocatalysis. In this regard, metal–organic frameworks (MOFs) route; they have emerged as interesting class materials photoreactions due their flexible tunability composition, structure, functional properties, along with facilitated adsorption towards chemicals absorption. Moreover, can be composed semiconductors heterojunctions (e.g., type‐II, Z‐scheme, S‐scheme), whose effectiveness photogenerated charge separation proven by many examples. The present critical review reports progress over last 5 years preparation activity framework‐based heterojunction pollutants. © 2022 Society Chemical Industry (SCI).

Language: Английский

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C, N-vacancies and Br dopant co-enhanced photocatalytic H2 evolution of g-C3N4 from water and simulated seawater splitting

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 461, P. 142046 - 142046

Published: Feb. 22, 2023

Language: Английский

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Functionalized graphitic carbon nitride based catalysts in solar-to-chemical conversion for hydrogen peroxide production

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 466, P. 142931 - 142931

Published: April 12, 2023

Language: Английский

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