The layered g-C3N4 was synthesized by pyrolysis-chemical stripping method,and a series of MoS2/g-C3N4 composite photocatalysts with different mass ratio were prepared by hydrothermal method.The microstructure and optical properties of the samples were characterized by field emission scanning electron microscopy (SEM),elemental mapping,X-ray diffraction (XRD),and UV-Vis absorption spectroscopy (UV-Vis).The photodegradation of organic dyes and photocatalytic split water for hydrogen production were studied under visible light irradiation.When the concentration of photocatalyst was 0.2g/L,the degradation rates of RhB and MB were 78.8% and 94.6% after 180min,and the reaction constants are 38.2 and 21.5 times than those of MoS2 and g-C3N4,respectively.The maximum rate of photocatalytic hydrogen evolution was 151.4μmol/(g·h) under visible light.
Zhang Hongzhong, Zhou Hanghang, Wang Lan, Song Yali, Zhang Huan, Qian Xuhui, Liu Shuaixia
. Study on preparation and performance of MoS2/g-C3N4 composite photocatalyst[J]. New Chemical Materials, 2021
, 49(1)
: 199
-203
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.01.044
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