Surface Engineering of 2D Carbon Nitride with Cobalt Sulfide Cocatalyst for Enhanced Photocatalytic Hydrogen Evolution

被引：8
|
作者：
Zhou, Min [1 ]
Li, Li [1 ]
Zhang, Sai [1 ]
Yi, Jianjian [1 ]
Song, Yanhua [2 ]
Li, Huaming [1 ]
Xu, Hui [1 ]
机构：
[1] Jiangsu Univ, Inst Energy Res, Sch Environm & Safety Engn, Zhenjiang 212013, Jiangsu, Peoples R China
[2] Jiangsu Univ Sci & Technol, Sch Environm & Chem Engn, Zhenjiang 212003, Jiangsu, Peoples R China
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2021年 / 218卷 / 10期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
carbon nitride; cobalt sulfide; cocatalysts; H-2; evolution; photocatalysis; Z-SCHEME; ELECTROCATALYSTS; IMPROVEMENT; REDUCTION; CATALYSIS; OXIDATION; STRATEGY; OXYGEN; WATER;
D O I：
10.1002/pssa.202100012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It is a great challenge to design efficient noble-metal-free cocatalysts used in hydrogen production under visible light irradiation. Herein, it is demonstrated that a cobalt-sulfide material (Co9S8) with the advantages of excellent functionality of charge transfer can be used as an effective cocatalyst to improve the photocatalytic hydrogen evolution of 2D graphitic carbon nitride (2D g-C3N4). Interestingly, the developed Co-N-x bonds can strengthen the interface connection and ensure effective charge migration. Finally, the photocatalytic hydrogen evolution activity can be greatly improved. The optimal catalyst (20% Co9S8/2D g-C3N4) shows 237.9 mu mol hydrogen evolution at 5 h, which is 140 times that of 2D g-C3N4. The good result indicates the positive role of the Co9S8 cocatalyst for active site engineering on 2D g-C3N4.
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收藏
页数：7
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