https://doi.org/10.1140/epjp/s13360-021-01937-4
Regular Article
Improve photocatalytic performance of ZnO through coordination of ZnO/ZnIn2S4 heterojunction and graphene oxide
1
Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, 830046, Urumqi, Xinjiang, People’s Republic of China
2
School of Physical Science and Technology, Xinjiang University, 830046, Urumqi, Xinjiang, People’s Republic of China
Received:
23
June
2021
Accepted:
2
September
2021
Published online:
23
September
2021
In order to obtain high-performance semiconductor photocatalysts, ZnO nanoparticles were adsorbed on the surface of GO/ZnIn2S4 in this study. Through the synergistic effect between GO and ZnO/ZnIn2S4 type-II heterojunction, the recombination rate of photogenerated carriers was reduced, and the light absorption performance of the photocatalyst was improved. At the same time, pure ZnO nanoparticles, pure ZnIn2S4 and GO/ZnIn2S4 were prepared for comparison. Different photocatalysts were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, high-resolution transmission electron microscope, and ultraviolet–visible spectroscopy. The photocatalytic experiments of methylene orange show that the photocatalytic kinetic coefficient of GO/ZnO/ZnIn2S4 is 5.4 times that of pure ZnO, and it is also better than other samples. Based on photoluminescence spectroscopy, the mechanism of improving the photocatalytic performance of GO/ZnO/ZnIn2S4 was explored.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
