Black Phosphorus and Polymeric Carbon Nitride Heterostructure for Photoinduced Molecular Oxygen Activation

被引:412
|
作者
Zheng, Yun [1 ,2 ]
Yu, Zihao [1 ]
Ou, Honghui [1 ]
Asiri, Abdullah M. [3 ]
Chen, Yilin [2 ]
Wang, Xinchen [1 ]
机构
[1] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China
[2] Huaqiao Univ, Coll Mat Sci & Engn, Key Lab Funct Mat Fujian Higher Educ, Xiamen 361021, Peoples R China
[3] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia
基金
中国国家自然科学基金;
关键词
black phosphorus; carbon nitride; molecular oxygen activation; photocatalysis; reactive oxygen species; PHOTOCATALYTIC HYDROGEN EVOLUTION; VISIBLE-LIGHT IRRADIATION; H2O2; PRODUCTION; PEROXIDE PRODUCTION; WATER; G-C3N4; SURFACE; GENERATION; NANOSHEETS; O-2;
D O I
10.1002/adfm.201705407
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Metal-free heterostructure photocatalysts composed of black phosphorus (BP) and polymeric carbon nitride (CN) are successfully synthesized via a one-step liquid exfoliation method assisted by sonication. The combination of BP with CN strengthens the visible-light harvesting ability, facilitates the charge separation in the photocatalytic process, and renders promoted activity of photoinduced molecular oxygen activation, such as superoxide radicals (center dot O-2(-)) evolution and H2O2 production. This work highlights that coupling semiconductors with well-matched band levels provide a flexible route to enhance the performance of photocatalysts for producing reactive oxygen species, and gives ideas for the design of highly active and metal-free materials toward sustainable solar-to-chemical energy conversion and environmental remediation.
引用
收藏
页数:9
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