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Title: Water-soluble MoS3 nanoparticles for photocatalytic H2 evolution
Authors: Zhang, Wei
Zhou, Tianhua
Zheng, Jianwei
Hong, Jindui
Pan, Yunxiang
Xu, Rong
Keywords: DRNTU::Science::Chemistry
Issue Date: 2015
Source: Zhang, W., Zhou, T., Zheng, J., Hong, J., Pan, Y., & Xu, R. (2015). Water-soluble MoS3 nanoparticles for photocatalytic H2 evolution. ChemSusChem, in press.
Series/Report no.: ChemSusChem
Abstract: Polyvinylpyrrolidone (PVP)-modified MoS3 nanoparticles with unusual water solubility up to 1.0 mg mL−1 were synthesized through a facile hydrothermal method in the presence of thioacetic acid. The amorphous nanoparticles wrapped by PVP have sizes of around 2.5 nm, which represent the smallest MoS3 clusters reported. The photocatalytic performance of the MoS3 nanoparticles was evaluated under visible light for H2 evolution using xanthene dyes as photosensitizers. The quantum efficiency of the optimized system for H2 evolution under green light irradiation (520 nm) is up to 36.2 %, which is comparable with those of other excellent photocatalytic systems involving earth-abundant catalysts. The excellent photocatalytic activity can be attributed to its good dispersion in water, amorphous nature and limited layers with abundant surface active sites, and possibly higher conduction band potential for proton reduction and larger indirect band gap for a longer lifetime of the excited electrons.
ISSN: 1864-5631
DOI: 10.1002/cssc.201500067
Rights: © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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