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

doi:10.1016/j.catcom.2020.106003

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

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

137 Downloads (Pure)

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 language	English
Article number	106003
Number of pages	4
Journal	Catalysis Communications
Volume	140
Early online date	30 Mar 2020
DOIs	https://doi.org/10.1016/j.catcom.2020.106003
Publication status	Published - 05 Jun 2020

Keywords

Photocatalysis
Molybdenum disulfide
Anti-bacterial
Water disinfection
Visible light

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Highly-efficient photocatalytic disinfection of Escherichia coli by copper-doped molybdenum disulfide:bismuth sulfide under low-powered visible light irradiation
Copyright 2020 Elsevier. This manuscript is distributed under a Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
Accepted author manuscript, 602 KBLicence: CC BY-NC-ND

Cite this

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

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.",

keywords = "Photocatalysis, Molybdenum disulfide, Anti-bacterial, Water disinfection, Visible light",

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

year = "2020",

month = jun,

day = "5",

doi = "10.1016/j.catcom.2020.106003",

language = "English",

volume = "140",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier B.V.",

}

Highly-efficient photocatalytic disinfection of Escherichia coli by copper-doped molybdenum disulfide/bismuth sulfide under low-powered visible light irradiation. / Cathie Lee, W.P. ; Perix, Terence L.; Arockia Rajesh Packiam, Kulandai et al.
In: Catalysis Communications, Vol. 140, 106003, 05.06.2020.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Highly-efficient photocatalytic disinfection of Escherichia coli by copper-doped molybdenum disulfide/bismuth sulfide under low-powered visible light irradiation

AU - Cathie Lee, W.P.

AU - Perix, Terence L.

AU - Arockia Rajesh Packiam, Kulandai

AU - Gui, Meei Mei (Nicole)

AU - Wei Ooi, Chien

AU - Chai, Siang Piao

PY - 2020/6/5

Y1 - 2020/6/5

N2 - 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.

AB - 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.

KW - Photocatalysis

KW - Molybdenum disulfide

KW - Anti-bacterial

KW - Water disinfection

KW - Visible light

U2 - 10.1016/j.catcom.2020.106003

DO - 10.1016/j.catcom.2020.106003

M3 - Article

SN - 1566-7367

VL - 140

JO - Catalysis Communications

JF - Catalysis Communications

M1 - 106003

ER -

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

Abstract

Keywords

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