Premium
Surface Engineering of 2D Carbon Nitride with Cobalt Sulfide Cocatalyst for Enhanced Photocatalytic Hydrogen Evolution
Author(s) -
Zhou Min,
Li Li,
Zhang Sai,
Yi Jianjian,
Song Yanhua,
Li Huaming,
Xu Hui
Publication year - 2021
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.202100012
Subject(s) - photocatalysis , cobalt , materials science , carbon nitride , graphitic carbon nitride , hydrogen production , nitride , catalysis , cobalt sulfide , sulfide , hydrogen , carbon fibers , water splitting , chemical engineering , nanotechnology , chemistry , metallurgy , composite number , composite material , organic chemistry , electrochemistry , electrode , layer (electronics) , engineering
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 (Co 9 S 8 ) 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‐C 3 N 4 ). Interestingly, the developed CoN 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% Co 9 S 8 /2D g‐C 3 N 4 ) shows 237.9 μmol hydrogen evolution at 5 h, which is 140 times that of 2D g‐C 3 N 4 . The good result indicates the positive role of the Co 9 S 8 cocatalyst for active site engineering on 2D g‐C 3 N 4 .
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom