期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 47, 期 49, 页码 21067-21118出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2022.04.247
关键词
Graphitic carbon nitride; Hydrogen production; Photocatalysis; Water splitting; CO2 conversion
资金
- King Khalid University through Research Center for Advanced Materials Science (RCAMS) [RCAMS/KKU/009/21]
- Foundation of Yangtze Delta Region Institute (Huzhou) of UESTC, China [U03210057]
Artificial photocatalysis is an appealing method for harvesting solar energy in a cost-effective, renewable, clean, and sustainable way. Non-metal graphitic carbon nitride (g-C3N4) has emerged as a new research hotspot. However, g-C3N4 faces challenges such as rapid recombination of electron-hole pairs. Therefore, the design and development of novel photocatalysts for efficient energy harvesting is crucial.
In recent years, the most appealing way to harvest solar energy via cost-effective, renewable, clean and sustainable technology is the artificial photocatalysis which has drawn multidisciplinary attention to mitigate the upcoming energy disaster and environmental issues in the arena of sustainable development of society. For this purpose, significant progress has been made, regarding the selectivity of photocatalytic energy sources for potential productivity using solar energy pathway, nonetheless it has still become a difficult task for scientists in order to make and resolve the noteworthy problem of increasing global deterioration. According to a recent literature survey, the non-metal based graphitic carbon nitride (g-C3N4) as a fascinating conjugated polymer based photo catalyst has emerged as a new research hotspot in the form of viable option related to its earth abundant elements, good stability, and ease in fabrication. Still, there are many disadvantages associated with g-C3N4, such as rapid recombination of photoexcited electron-hole pairs, which ultimately affect the photocatalytic hydrogen (H-2) and carbon dioxide (CO2) conversion under solar illumination. Previously published several reviews only emphasize the proficient use of g-C3N4 photocatalyst for overall sustainable energy production as an effective treatment strategy. But the literature has never been addressed the use of g-C3N4 with different morphological and structural characteristics for simultaneous H-2 production and carbon dioxide reduction. Therefore, the proper designing and development of novel photocatalysts with proper surface tuning and intrinsic properties towards efficient energy harvesting is of utmost interest. This review article is basically designed to properly address the existing issues and the recent progress of g-C3N4 through various strategies with the aim of obtaining a robust and resourceful photocatalyst towards sustainable energy production. In this context, we had a clear debate regarding the proper tuning of g-C3N4 based photocatalysts through various fabrication strategies, such as electronic structure via metals/non-metals doping, defects engineering, carbon dots, etc. along with Z-scheme heterojunctions, bimetallic cocatalyst, and organic metal-organic framework. At the end, this review is devoted to sufficiently summarizing the recent advancements and the possible future recommendation of the fundamental contribution of g-C3N4 in a wide variety of sustainable energy production fields. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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