光催化
石墨氮化碳
量子点
材料科学
可重用性
吸收(声学)
带隙
可见光谱
纳米技术
光电子学
化学工程
催化作用
复合材料
计算机科学
化学
有机化学
工程类
程序设计语言
软件
作者
Yongxi Chen,Min Cheng,Cui Lai,Zhen Wei,Gaoxia Zhang,Ling Li,Chensi Tang,Li Du,Wenjun Wang,Hongda Liu
出处
期刊:Small
[Wiley]
日期:2023-01-02
卷期号:19 (14)
被引量:49
标识
DOI:10.1002/smll.202205902
摘要
Recently, graphitic carbon nitride (g-C3 N4 ) has attracted increasing interest due to its visible light absorption, suitable energy band structure, and excellent stability. However, low specific surface area, finite visible light response range (<460 nm), and rapid photogenerated electron-hole (e- -h+ ) pairs recombination of the pristine g-C3 N4 limit its practical applications. The small size of quantum dots (QDs) endows the properties of abundant active sites, wide absorption spectrum, and adjustable bandgap, but inevitable aggregation. Studies have confirmed that the integration of g-C3 N4 and QDs not only overcomes these limitations of individual component, but also successfully inherits each advantage. Encouraged by these advantages, the synthetic strategies and the fundamental of QDs/g-C3 N4 composites are briefly elaborated in this review. Particularly, the synergistic effects of QDs/g-C3 N4 composites are analyzed comprehensively, including the enhancement of the photocatalytic performance and the avoidance of aggregation. Then, the photocatalytic applications of QDs/g-C3 N4 composites in the fields of environment and energy are described and further combined with DFT calculation to further reveal the reaction mechanisms. Moreover, the stability and reusability of QDs/g-C3 N4 composites are analyzed. Finally, the future development of these composites and the solution of existing problems are prospected.
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