Photocatalytic CO2 Reduction by Modified g-C3N4

IF 13.5 2区化学 Q1 CHEMISTRY, PHYSICAL 物理化学学报 Pub Date : 2024-12-01 Epub Date: 2024-09-30 DOI:10.3866/PKU.WHXB202408005

Xuejiao Wang , Suiying Dong , Kezhen Qi , Vadim Popkov , Xianglin Xiang

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Abstract

The use of carbon-based fuels causes a significant increase in CO₂ emissions, posing a serious threat to the environment. This review explores the potential application of graphitic carbon nitride (g-C₃N₄) in photocatalytic CO₂ reduction as a strategy to mitigate global warming. The effectiveness of g-C₃N₄ (gCN) in this process is hindered by several factors, including rapid exciton recombination, limited solar light absorption, and a lack of active sites for conducting the reduction. To address these challenges, various amendment techniques have been executed, such as adjusting the morphology of g-C₃N₄, doping it with different atoms, and forming heterojunctions with other semiconductors. This review highlights the role of S-scheme heterojunctions in expanding the photocatalytic activity of g-C₃N₄ and emphasizes that, despite its potential as a photocatalyst for CO₂ reduction, further research and innovation are essential to overcome its current limitations.

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改性g-C3N4光催化还原CO2

碳基燃料的使用导致二氧化碳排放量显著增加，对环境构成严重威胁。本文综述了氮化石墨碳（g-C3N4）在光催化CO2还原中的潜在应用，作为减缓全球变暖的策略。g-C3N4 （gCN）在这一过程中的有效性受到几个因素的阻碍，包括快速的激子重组，有限的太阳光吸收，以及缺乏进行还原的活性位点。为了解决这些挑战，已经执行了各种修正技术，例如调整g-C3N4的形态，掺杂不同的原子，以及与其他半导体形成异质结。这篇综述强调了s型异质结在扩大g-C3N4光催化活性方面的作用，并强调，尽管它有潜力成为二氧化碳还原光催化剂，但需要进一步的研究和创新来克服其目前的局限性。下载：下载高清图片（108KB）下载：下载全尺寸图片

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