光催化
异质结
制氢
三元运算
石墨氮化碳
材料科学
化学工程
氮化碳
催化作用
纳米颗粒
半导体
氢
氮化物
载流子
带隙
纳米技术
光电子学
化学
有机化学
计算机科学
工程类
图层(电子)
程序设计语言
作者
Chengjia Zhang,Qian Liang,Yanan Wang,Man Zhou,Xiazhang Li,Song Xu,Zhongyu Li
标识
DOI:10.1016/j.apsusc.2023.157214
摘要
The design and construction of low-cost and high-performance semiconductor is critical for the large-scale application of hydrogen energy. Hollow spherical carbon nitride (HCNS) is considered as a promising photocatalytic material due to its large inner space and appropriate band gap. Herein, 0D CdS QDs and 0D CoS nanoparticles are coated on HCNS to form a distinct double-shell structure by a facile in-situ preparation process. Based on the unique hierarchical structure, the photoinduced charge is spatially separated along the ternary catalysts to improve the electron transfer and reaction kinetics. The CoS/[email protected] shows the highest H2 generation activity under visible light irradiation (2866 μmol·g−1·h−1), which is 20.2 and 7.9 times higher than that of HCNS (142 μmol·g−1·h−1) and CdS (363 μmol·g−1·h−1), respectively. In addition, the 5%-CoS/[email protected] composite has high stability after 4 cycles of test. It provides a new strategy for exploring and manufacturing 0D/3D photocatalysts for energy and environmental applications.
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