Efficient Z-scheme visible-light-driven photocatalytic bacterial inactivation by hierarchical MoS2-encapsulated hydrothermal carbonation carbon core-shell nanospheres

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

4 Scopus Citations
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Detail(s)

Original languageEnglish
Pages (from-to)43-52
Journal / PublicationApplied Surface Science
Volume464
Early online date8 Sep 2018
Publication statusPublished - 15 Jan 2019

Abstract

A 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 ˙O2 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.

Research Area(s)

  • Carbon, Inactivation, MoS2, Visible light, Z-scheme

Citation Format(s)

Efficient Z-scheme visible-light-driven photocatalytic bacterial inactivation by hierarchical MoS2-encapsulated hydrothermal carbonation carbon core-shell nanospheres. / Wang, Tianqi; Sun, Mingzhe; Sun, Hongli; Shang, Jin; Wong, Po Keung.

In: Applied Surface Science, Vol. 464, 15.01.2019, p. 43-52.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review