Highly-efficient photocatalytic disinfection of Escherichia coli by copper-doped molybdenum disulfide/bismuth sulfide under low-powered visible light irradiation

W.P. Cathie Lee, Terence L. Perix, Kulandai Arockia Rajesh Packiam, Meei Mei (Nicole) Gui, Chien Wei Ooi, Siang Piao Chai

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Reliable and affordable access to clean water has posted a threat in rural areas and fast expanding urban centers. Herein, a copper-doped MoS2/Bi2S3 photocatalyst is reported for photocatalytic bacterial disinfection. Under the irradiation of a single 18 W energy-saving light bulb, Cu-MoS2/Bi2S3 was able to achieve 100% inactivation of E. coli in 60 min. This high efficiency of Cu-MoS2/Bi2S3 can be attributed to its enhancement of light absorption and rapid electron-hole separation. This work provides a new insight into the potential use of energy efficient light source for water sanitation.
Original languageEnglish
Article number106003
Number of pages4
JournalCatalysis Communications
Volume140
Early online date30 Mar 2020
DOIs
Publication statusPublished - 05 Jun 2020

Keywords

  • Photocatalysis
  • Molybdenum disulfide
  • Anti-bacterial
  • Water disinfection
  • Visible light

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