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author:

Li, Yue-Hua (Li, Yue-Hua.) [1] | Qi, Ming-Yu (Qi, Ming-Yu.) [2] | Tang, Zi-Rong (Tang, Zi-Rong.) [3] | Xu, Yi-Jun (Xu, Yi-Jun.) [4]

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EI

Abstract:

Coupling photocatalytic hydrogen (H2) evolution with selective organic synthesis in one redox cycle showcases great potential for the coinstantaneous utilization of photoexcited electrons and holes toward sustainable production of value-added fuels and chemicals. Herein, we construct one-dimensional/two-dimensional (1D/2D) WO3/ZnIn2S4 (WO3/ZIS) hierarchical Z-scheme composites for bifunctional integrated light-driven H2 production and biomass-derived aromatic alcohol conversion. The superior photoactivity and selectivity over WO3/ZIS composites compared with that over bare WO3 nanorods (NRs) and ZIS nanosheets (NSs) can be attributed to the assembly of the Z-scheme heterostructure. The construction of WO3/ZIS direct Z-scheme composites not only facilitates the charge separation dynamics by transporting photoinduced electrons and holes to spatially separated redox sites but also steers the selectivity of targeted products by tuning the energy band potentials to endow electrons and holes with stronger reduction and oxidation abilities. The mechanistic studies combining the control experiments and electron paramagnetic resonance spectroscopy validate the free radical mechanism of the benzyl alcohol photooxidation reaction. It is anticipated that this work would offer a conducive paradigm for the ingenious design of high-performance Z-scheme heterostructured catalysts toward the solar light-driven collaborative redox of H2 production and selective organic synthesis. © Authors 2022

Keyword:

Electrons Electron spin resonance spectroscopy Free radicals Hydrogen production Nanorods Organic chemicals Paramagnetic resonance Photooxidation Redox reactions Solar energy Tungsten compounds

Community:

  • [ 1 ] [Li, Yue-Hua]College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
  • [ 2 ] [Qi, Ming-Yu]College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
  • [ 3 ] [Tang, Zi-Rong]College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
  • [ 4 ] [Xu, Yi-Jun]College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China

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Source :

Journal of Physical Chemistry C

ISSN: 1932-7447

Year: 2022

Issue: 4

Volume: 126

Page: 1872-1880

3 . 7

JCR@2022

3 . 3 0 0

JCR@2023

ESI HC Threshold:74

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 23

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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