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- W4313641351 abstract "Photocatalytic selective organic transformations (SOTs) with H2 production in one reaction system represent a route with great promise for green and sustainable organic synthesis and clean fuel generation. In this work, a new La-ion engineering strategy was employed to elaborately fabricate Ni2P/CdLaS (NP/CLS) composite photocatalysts, which significantly improved the visible light-initiated alcohol oxidation-hydrogen production performance. The optimized 1.5% NP/CLS sample showed a maximum production rate of H2 (15.35 mmol·h−1·g−1) and aromatic aldehyde (15.83 mmol·h−1·g−1) under visible light illumination (λ ≥ 420 nm), which are 3.4 times higher than that of Ni2P/CdS (NP/CS) and 20 times higher than that of CLS. The apparent quantum efficiency over 1.5% NP/CLS sample could reach up to 11.22% at 450 nm. The superior performance of the photocatalytic H2 production results over 1.5% NP/CLS sample could be mainly ascribed to the following synergistic effects. Firstly, the formed intimate Ohmic contact between NP and CLS can increase the separation speed of photo-generated charge carriers, meantime, reducing the overpotential for H2 evolution. Secondly, the introduced La ions in NP/CLS effectively strengthen photogenerated electron transfer. The detailed physical and chemical characterization results, in-situ XPS analysis, and density functional theory (DFT) calculations provide effective support for the proposed photocatalytic reaction mechanism. This work shows a strategy with great promise to design noble-metal-free photocatalysts for high H2 production performance." @default.
- W4313641351 created "2023-01-07" @default.
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- W4313641351 date "2023-04-01" @default.
- W4313641351 modified "2023-09-23" @default.
- W4313641351 title "Lanthanum modified Ni2P/CdS ohmic contact for significantly enhanced photocatalytic hydrogen production performance" @default.
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- W4313641351 doi "https://doi.org/10.1016/j.ijhydene.2022.12.207" @default.
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