J. Mater. Sci. Technol. ›› 2024, Vol. 179: 155-165.DOI: 10.1016/j.jmst.2023.08.009

• Research Article • Previous Articles     Next Articles

An embedded ReS2@MAPbBr3 heterostructure with downhill interfacial charge transfer for photocatalytic upgrading of biomass-derived alcohols to aldehydes and H2

Tao Shana, Yanbo Lia, Sunzai Kea, Bo Sub, Lijuan Shena,*, Sibo Wangb,*, Xuhui Yanga, Min-Quan Yanga,*   

  1. aCollege of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou 350117, China;
    bState Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, China
  • Received:2023-07-30 Revised:2023-08-19 Accepted:2023-08-21 Published:2024-04-20 Online:2024-04-15
  • Contact: *E-mail addresses: ljshen@fjnu.edu.cn (L. Shen), sibowang@fzu.edu.cn (S. Wang), yangmq@fjnu.edu.cn (M.-Q. Yang).
  • About author:1 These authors contributed equally to this work.

Abstract: Solar-driven selective upgrading of lignocellulosic biomass-derived alcohols to value-added chemicals and clean fuel hydrogen (H2) shows great potential for tackling the energy crisis and environmental pollution issues. Here, we construct a MAPbBr3/ReS2 heterostructure by embedding distorted tetragonal (1T) phase ReS2 nanoflowers into large-sized MAPbBr3 for green value-added utilization of biomass-derived alcohols. The embedded structure effectively enlarges the contact interface between the ReS2 and the MAPbBr3, and importantly, induces a strong built-in electric field aligned between the spatially well-defined MAPbBr3 and ReS2 nanoflowers. Moreover, the distorted 1T phase ReS2 with low work function well matches the energy band of MAPbBr3, forming a heterostructure with a downward band bending at the interface. These features empower the MAPbBr3/ReS2 photocatalyst with high capability to promote charge separation and expedite the surface redox reaction. Consequently, optimal BAD and H2 production rates of about 1220 μmol h-1 g-1 are realized over a MAPbBr3/ReS2 2% sample, which are approximately 9 times greater than those of blank MAPbBr3. This work demonstrates the great potential of constructing an embedded transition metal dichalcogenide@metal halide perovskites heterostructure with downhill interfacial charge transfer for photocatalytic upgrading of biomass-derived alcohols.

Key words: Heterostructure, Downhill interface, Biomass-derived alcohols, ReS2, MAPbBr3, H2 evolution