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 pollu-tion 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.
基金项目
National Natural Science Foundation of China(22178057)
National Natural Science Foundation of China(21905049)
Natural Science Foundation of Fujian Province(2020J01201)
Natural Science Foundation of Fujian Province(2021J01197)
Research Foundation of the Academy of Carbon Neutrality of Fujian Normal University(TZH2022-07)
Award Program for Minjiang Scholar Professorship()
NETL
NSTL
万方数据