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NiCo 2 O 4 /g‐C 3 N 4 Heterojunction Photocatalyst for Efficient H 2 Generation
Author(s) -
Fan Yanyun,
Chen Hongmei,
Cui Danfeng,
Fan Zheng,
Xue Chenyang
Publication year - 2021
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202000973
Subject(s) - photocatalysis , heterojunction , materials science , bimetal , hydrogen production , visible spectrum , hydrogen , oxide , absorption (acoustics) , photochemistry , catalysis , optoelectronics , chemistry , organic chemistry , composite material , metallurgy
Herein, a novel NiCo 2 O 4 /g‐C 3 N 4 heterojunction photocatalyst is synthesized, which shows excellent photocatalytic activity. Photocatalysis studies reveal that the hydrogen generation rate of the 5%‐NiCo 2 O 4 /g‐C 3 N 4 composite photocatalyst can reach 1041.9 μmol g −1 h −1 . NiCo 2 O 4 and g‐C 3 N 4 form a heterojunction, which enhances the absorption capacity of visible light, promotes the separation of charges, and inhibits the recombination of carriers, consequently, improving the performance of photocatalytic hydrogen generation. The photocatalytic reaction mechanism of the NiCo 2 O 4 /g‐C 3 N 4 heterojunction composite is discussed, which provides a method for studying bimetal oxide‐based photocatalysts.