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Surface Engineering for Extremely Enhanced Charge Separation and Photocatalytic Hydrogen Evolution on g‐C 3 N 4
Author(s) -
Yu Yu,
Yan Wei,
Wang Xiaofang,
Li Pei,
Gao Wenyu,
Zou Haihan,
Wu Songmei,
Ding Kejian
Publication year - 2018
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201705060
Subject(s) - photocatalysis , materials science , graphitic carbon nitride , carbon nitride , surface engineering , doping , hydrogen , nitride , electron , carbon fibers , charge carrier , nanotechnology , band gap , chemical engineering , hydrogen fuel , optoelectronics , catalysis , organic chemistry , composite material , chemistry , physics , layer (electronics) , quantum mechanics , composite number , engineering
Reinforcing the carrier separation is the key issue to maximize the photocatalytic hydrogen evolution (PHE) efficiency of graphitic carbon nitride (g‐C 3 N 4 ). By a surface engineering of gradual doping of graphited carbon rings within g‐C 3 N 4 , suitable energy band structures and built‐in electric fields are established. Photoinduced electrons and holes are impelled into diverse directions, leading to a 21‐fold improvement in the PHE rate.