TY - JOUR
T1 - Preparation and performance study of ZnWO4/TiO2/MoS2 ternary composite photocatalyst
AU - Zhang, Hanbi
AU - Liu, Xiangchun
AU - Li, Zhengguang
AU - Wang, Fei
AU - Zhang, Jie
AU - Gao, Feng
AU - Zhang, Ping
AU - Wei, Ziyao
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2024/1
Y1 - 2024/1
N2 - The ZnWO4/TiO2/MoS2 (ZTM) ternary composite catalyst was prepared based on the excellent performance binary photocatalyst semiconductor ZnWO4/TiO2 composite powder. The application potential of the photocatalyst to decolorization of methylene blue (MB) dyes under sunlight was studied. The composites were characterized by X-ray diffraction technique (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The properties of the composites were tested with BET methods, ultraviolet–visible (UV–Vis) spectrophotometer and photoluminescence (PL) techniques. The experimental results indicate that the ternary catalyst has a nanorod-like morphology, better crystallinity, and large specific surface area. The specific surface area of ZTM-0.5 semiconductor photocatalyst is 2.54 times that of pure ZnWO4 and 1.83 times that of binary semiconductor photocatalyst. Compared with pure ZnWO4, the band gap of ZnWO4 is significantly reduced, and it has excellent photocatalytic properties, and the degradation rate of MB can reach 99%. The composite of MoS2 also inhibits the composite of photogenerated electron–hole pairs, improves the concentration of photocatalytic intermediates, not only improves the photocatalytic activity, but also improves the stability of the photocatalyst. After three cycles of degradation experiments, the degradation efficiency of ZTM-0.5 photocatalyst remains at 65%. The main radical affecting the photocatalysis through the trapping agent benzoquinone test is the superoxide radicals (·O2−). Graphical abstract: Possible photocatalytic reaction mechanism of ZnWO4/TiO2/MoS2 composite. The ZnWO4/TiO2/MoS2 ternary composite catalyst was prepared based on the excellent performance binary photocatalyst semiconductor ZnWO4/TiO2 composite powder. The phase composition, microstructure, and photocatalytic properties of the molybdenum disulfide composites at different mass percentages were investigated.[Figure not available: see fulltext.]
AB - The ZnWO4/TiO2/MoS2 (ZTM) ternary composite catalyst was prepared based on the excellent performance binary photocatalyst semiconductor ZnWO4/TiO2 composite powder. The application potential of the photocatalyst to decolorization of methylene blue (MB) dyes under sunlight was studied. The composites were characterized by X-ray diffraction technique (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The properties of the composites were tested with BET methods, ultraviolet–visible (UV–Vis) spectrophotometer and photoluminescence (PL) techniques. The experimental results indicate that the ternary catalyst has a nanorod-like morphology, better crystallinity, and large specific surface area. The specific surface area of ZTM-0.5 semiconductor photocatalyst is 2.54 times that of pure ZnWO4 and 1.83 times that of binary semiconductor photocatalyst. Compared with pure ZnWO4, the band gap of ZnWO4 is significantly reduced, and it has excellent photocatalytic properties, and the degradation rate of MB can reach 99%. The composite of MoS2 also inhibits the composite of photogenerated electron–hole pairs, improves the concentration of photocatalytic intermediates, not only improves the photocatalytic activity, but also improves the stability of the photocatalyst. After three cycles of degradation experiments, the degradation efficiency of ZTM-0.5 photocatalyst remains at 65%. The main radical affecting the photocatalysis through the trapping agent benzoquinone test is the superoxide radicals (·O2−). Graphical abstract: Possible photocatalytic reaction mechanism of ZnWO4/TiO2/MoS2 composite. The ZnWO4/TiO2/MoS2 ternary composite catalyst was prepared based on the excellent performance binary photocatalyst semiconductor ZnWO4/TiO2 composite powder. The phase composition, microstructure, and photocatalytic properties of the molybdenum disulfide composites at different mass percentages were investigated.[Figure not available: see fulltext.]
UR - http://www.scopus.com/inward/record.url?scp=85180264249&partnerID=8YFLogxK
U2 - 10.1007/s10853-023-08995-2
DO - 10.1007/s10853-023-08995-2
M3 - 文章
AN - SCOPUS:85180264249
SN - 0022-2461
VL - 59
SP - 38
EP - 54
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 1
ER -