TY - JOUR
T1 - ZnIn2S4 Quantum Dot/Mo-Doped WO2.72 Nanowire Heterojunctions Boost the Photocatalytic Desulfurization of Diesel
AU - Zhao, Xinyu
AU - Xie, Suting
AU - Huang, Hengshuo
AU - Zhu, Xiaochen
AU - Li, Junyi
AU - Yang, Lixia
AU - Bai, Liangjiu
AU - Wei, Donglei
AU - Yin, Kun
AU - Yang, Huawei
AU - Chen, Hou
AU - Luo, Mingchuan
N1 - Publisher Copyright:
© 2024 American Chemical Society.
PY - 2024/5/24
Y1 - 2024/5/24
N2 - Photocatalytic aerobic oxidation desulfurization (PAODS) has emerged as a sustainable means for the desulfurization of fuels, which is, however, limited by the low efficiency of electron-hole separation in currently available catalytic systems. In this study, we report the design and synthesis of a ZnIn2S4 quantum dot (QD)/Mo-doped WO2.72 nanowire 0D/1D Z-scheme heterojunction photocatalyst for the PAODS of thiophenic sulfides. We elucidate that the incorporated Mo sites facilitate the localized surface plasmon resonance (LSPR) effect for the generation of hot electrons and also act as high-activity sites for sulfide oxidation. The integration of ZnIn2S4 QDs improves the adsorption of visible light and facilitates the separation of electron-hole pairs. The photocatalyst demonstrates outstanding activity with a mass specific activity of 3.91 mmol g-1 h-1. In particular, it successfully achieves the deep desulfurization of real diesel, effectively reducing the sulfur content to 9.4 ppm, which suggests its appealing practical potential. These findings offer valuable insights, both from a scientific and practical perspective, to develop high-performance photocatalysts for sustainable PAODS processes.
AB - Photocatalytic aerobic oxidation desulfurization (PAODS) has emerged as a sustainable means for the desulfurization of fuels, which is, however, limited by the low efficiency of electron-hole separation in currently available catalytic systems. In this study, we report the design and synthesis of a ZnIn2S4 quantum dot (QD)/Mo-doped WO2.72 nanowire 0D/1D Z-scheme heterojunction photocatalyst for the PAODS of thiophenic sulfides. We elucidate that the incorporated Mo sites facilitate the localized surface plasmon resonance (LSPR) effect for the generation of hot electrons and also act as high-activity sites for sulfide oxidation. The integration of ZnIn2S4 QDs improves the adsorption of visible light and facilitates the separation of electron-hole pairs. The photocatalyst demonstrates outstanding activity with a mass specific activity of 3.91 mmol g-1 h-1. In particular, it successfully achieves the deep desulfurization of real diesel, effectively reducing the sulfur content to 9.4 ppm, which suggests its appealing practical potential. These findings offer valuable insights, both from a scientific and practical perspective, to develop high-performance photocatalysts for sustainable PAODS processes.
KW - dibenzothiophene
KW - heterojunction
KW - indium zinc sulfide
KW - monoclinic tungsten oxide
KW - photocatalytic oxidative desulfurization
UR - http://www.scopus.com/inward/record.url?scp=85192816507&partnerID=8YFLogxK
U2 - 10.1021/acsanm.4c01367
DO - 10.1021/acsanm.4c01367
M3 - Article
AN - SCOPUS:85192816507
SN - 2574-0970
VL - 7
SP - 11767
EP - 11776
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 10
ER -