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Surface Modification of Carbon Nitride Polymers by Core–Shell Nickel/Nickel Oxide Cocatalysts for Hydrogen Evolution Photocatalysis
Author(s) -
Zhang Guigang,
Li Guosheng,
Wang Xinchen
Publication year - 2015
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201500069
Subject(s) - photocatalysis , materials science , x ray photoelectron spectroscopy , graphitic carbon nitride , carbon nitride , chemical engineering , nickel , diffuse reflectance infrared fourier transform , raman spectroscopy , non blocking i/o , chemistry , catalysis , organic chemistry , metallurgy , physics , optics , engineering
Ni/NiO core–shell cocatalysts have been prepared on the surface of graphitic carbon nitride by a facile in situ immersion strategy to promote photocatalytic H 2 evolution activity under the light irradiation of the conjugated polymer. The physicochemical properties of the as‐prepared hybridized materials were characterized by several techniques, which include XRD, UV‐Raman spectroscopy, diffuse reflectance spectroscopy, photoluminescence spectroscopy, X‐ray photoelectron spectroscopy, and high‐resolution transmission electron microscopy, to investigate the composition, texture, surface properties, and optical properties of the samples. In comparison with an unmodified carbon nitride polymer, the Ni/NiO‐decorated sample shows an increased photocatalytic H 2 evolution rate and good durability because of the promoted surface kinetics that increase the charge‐transfer rate and reduce the overpotential for H 2 evolution dramatically.