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- W4383815066 abstract "Photocatalytic H2 evolution from organics dehydrogenation has sparked tremendous research attention. Metal halide perovskites (MHPs) with unique photoelectrical properties are deemed as a promising new-generation photocatalysts. Here, FAPbBr3-wrapped MoS2 heterostructure photocatalysts are in-situ constructed by an anti-solvent method for photocatalytic dehydrogenation of aromatic alcohols, which realizes a co-production of clean H2 fuel and value-added aldehydes. Experimental characterizations and theoretical calculations disclose that the introduction of MoS2 decreases the size of the FAPbBr3, and forms a built-in electric field in the composite, which synergistically inhibit the electron-hole pairs recombination and enhance the charge separation. Meanwhile, the MoS2 with low hydrogen binding energy provides abundant reduction sites to accelerate the kinetic of H2 evolution. As a consequence, the optimal FAPbBr3/MoS2-7 composite exhibits a H2 evolution rate of 1150 μmol g-1 h-1 and a benzyl aldehyde (BAD) generation rate of 1040 μmol g-1 h-1 under visible light irradiation, which is about 6 times of blank FAPbBr3. The activity is comparable to the reported value of H2 production from photocatalytic haloid acid splitting using MHPs-based catalysts. Electron paramagnetic resonance (EPR) measurement reveals that carbon-centered radical of •CH(OH)Ph is the primary intermediate for the photocatalytic dehydrogenation of aromatic alcohols." @default.
- W4383815066 created "2023-07-11" @default.
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- W4383815066 date "2023-11-01" @default.
- W4383815066 modified "2023-10-16" @default.
- W4383815066 title "In-situ construction of FAPbBr3-wrapped MoS2 heterostructure for photocatalytic H2 evolution from dehydrogenation of aromatic alcohols" @default.
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- W4383815066 doi "https://doi.org/10.1016/j.apsusc.2023.158004" @default.
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