Unveiling S-scheme charge migration mechanism in La2O3/g-C3N5 heterojunction for excellent photocatalytic H2 production under simulated sunlight irradiation

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 103, С. 456 - 466

Опубликована: Янв. 21, 2025

Язык: Английский

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Synthesis, Characterization, and Roles of Vacancy Defects in Polymer and Graphitized Carbon Nitride Photocatalysts: A Comprehensive Review

Polymers, Год журнала: 2025, Номер 17(3), С. 334 - 334

Опубликована: Янв. 26, 2025

Vacancy defect graphitic carbon nitride (g-C3N4) and conjugated polyimide (PI) polymer photocatalysts have become increasingly recognized as metal-free featuring an appropriate bandgap. The narrow absorption spectrum of visible light the rapid recombination rate photoexcited charge carriers in PI polymers g-C3N4 impede its photocatalytic performance. presence oxygen vacancies (OVs) photocatalysts, well nitrogen (NVs) (CVs) g-C3N4, can significantly enhance migration photogenerated electrons. Adding to improve electronic structure band gap width greatly efficiency g-C3N4. Defect engineering is important for increasing ability PI-polymer There remains a notable absence thorough review papers covering synthesis, characterization, applications vacancy-rich photocatalysis. This paper examines roles OVs PI-polymer, NVs, CVs thoroughly summarizes preparation approaches employed before after, during polymerization. scrutinizes spectroscopic characterization techniques, such EPR, XPS, PAS, XRD, FTIR, NMR, vacancy analysis. We also reviewed role vacancies, which include absorption, carrier separation, transfer dynamics. could serve comprehensive understanding, vacancy-engineered design framework, practical guide synthesizing characterizing.

Язык: Английский

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Carbon dioxide, global boiling, and climate carnage, from generation to assimilation, photocatalytic conversion to renewable fuels, and mechanism

The Science of The Total Environment, Год журнала: 2025, Номер 965, С. 178629 - 178629

Опубликована: Янв. 28, 2025

Язык: Английский

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Tunable nitrogen vacancies on g-C3N4 for efficient photocatalytic CO2 reduction and H2 production

Environmental Research, Год журнала: 2025, Номер 274, С. 121302 - 121302

Опубликована: Март 5, 2025

Язык: Английский

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Lignocellulosic biomass-driven biohydrogen production: Innovations, challenges, and future prospects for a sustainable green hydrogen economy

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 132, С. 51 - 74

Опубликована: Апрель 29, 2025

Язык: Английский

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