Journal
APPLIED SURFACE SCIENCE
Volume 464, Issue -, Pages 43-52Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2018.09.060
Keywords
MoS2; Carbon; Z-scheme; Inactivation; Visible light
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Funding
- Research Grant Council, Hong Kong SAR Government [GRF14100115]
- Technology and Business Development Fund of The Chinese University of Hong Kong [TBF15SCI008]
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MoS2-encapsulated hydrothermal carbonation carbon (HTCC@MoS2) heterojunction was constructed via a one-pot route. The HTCC@MoS2 nanospheres could efficiently inactivate 7-log bacterial cells within 50 min. Notably, as a metal-free material, pure HTCC nanostructures fabricated in this work also showed desirable photocatalytic activity. The continuously produced reactive species, especially % O-2 radicals, caused significant damage of bacterial cell membrane. The unique Z-scheme mode remarkably promoted the electron transfer and charge separation in the HTCC@MoS2 composite. This work not only developed a novel strategy for the direct conversion of carbohydrates to metal-free and photocatalytically active HTCC semiconductor, but also provided a promising HTCC@MoS2 heterojunction for cost-effective water disinfection.
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