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Journal ArticleDOI

Effects of Different Linear Diamines on the Performance of Photocatalysts for Hydrogen Production of Sensitized Graphene

01 Feb 2020-Journal of Molecular Catalysis (China Science Publishing & Media Ltd.)-Vol. 34, Iss: 1, pp 1-7
About: This article is published in Journal of Molecular Catalysis.The article was published on 2020-02-01 and is currently open access. It has received 2 citations till now. The article focuses on the topics: Hydrogen production & Graphene.
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Journal ArticleDOI
TL;DR: In this article, a novel metal-free plasmonic boron phosphide/graphitic carbon nitride (BP@g-C3N4) catalyst was proposed for photocatalytic overall water splitting.
Abstract: In this work, we report a novel metal-free plasmonic boron phosphide/graphitic carbon nitride (BP@g-C3N4) catalyst for photocatalytic overall water splitting. The BP@C3N4 catalyst exhibits broadened spectral adsorption in UV–vis to NIR region and shows the activity for hydrogen evolution even under 730 nm illumination, which is close to NIR region of solar irradiation. The highest H2 production rate reaches 31.5 μmol g−1 h−1 under visible light irradiation, which is 34.3 and 112.6 times higher than corresponding data of Pt/g-C3N4 and g-C3N4 catalysts respectively without noble metal loading. The finite element frequency-domain simulations indicate that the significantly improved photocatalytic water splitting performance is due to the BP plasmon resonance leading to effectively photo-induced carrier separation and transfer, which is crucially for solar energy harvesting and utilization. The metal-free earth-abundant plasmonic BP@g-C3N4 can catalyze photocatalytic overall water splitting by the plasmonic effect under visible light and near infrared irradiation efficiently.

62 citations

Journal ArticleDOI
TL;DR: In this paper, the stability and activity of the InP-based catalyst are effectively enhanced by applying an anti-corrosion SnO layer and In(OH)3 transition layer.
Abstract: InP shows a very high efficiency for solar light to electricity conversion in solar cell and may present an expectation property in photocatalytic hydrogen evolution. However, it suffers serious corrosion in water dispersion. In this paper, it is demonstrated that the stability and activity of the InP-based catalyst are effectively enhanced by applying an anti-corrosion SnO layer and In(OH)3 transition layer, which reduces the crystal mismatch between SnO and InP and increases charge transfer. The obtained Pt/SnO/In(OH)3/InP exhibits a hydrogen production rate of 144.42 µmol/g in 3 h under visible light illumination in multi-cycle tests without remarkable decay, 123 times higher than that of naked In(OH)3/InP without any electron donor under visible irradiation.

2 citations