Issue 6, 2013
From the journal:

Dalton Transactions

Effective bactericidal performance of silver-decorated titania nano-composites†

Jingbo Liu,ab   Zhimin Wang,c   Zhiping Luod  and  Sajid Bashir*aef  

* Corresponding authors

a Department of Chemistry, Texas A&M University-Kingsville, MSC 161, 700 University Blvd., Kingsville, TX, USA
E-mail: kfjll00@tamuk.edu
Fax: +13615933597
Tel: +13615932919

b Department of Chemistry, Texas A&M University, PO Box 30012, College Station, TX 77842-3012, USA
E-mail: jingbo.liu@chem.tamu.edu
Fax: +13615933597
Tel: +13615932919

c Department of Chemistry and Materials Science, Heilongjiang University, 74 Xuefu Rd, Nangang District, Harbin, Heilongjiang 150 001, P.R. China
E-mail: zhimin.wang@hlju.edu.cn
Fax: +86-451-86637922
Tel: +86-451-86637922

d Department of Chemistry and Physics, Fayetteville State University, Microscopy and Imaging Center and Materials Science and Engineering Program, Texas A&M University-College Station, BSBW, 2257 TAMU, TX 77843, USA
E-mail: zluo@uncfsu.edu
Fax: +1910 6722420
Tel: +1910 6722647

e Chemical Biology Research Group, Texas A&M University-Kingsville, MSC 161, 700 University Blvd., Kingsville, TX, USA
E-mail: br9@tamuk.edu
Fax: +13615933597
Tel: +13615934253

f Advanced Light Sources, The Lawrence Berkeley National Laboratory, Berkeley, CA, USA
E-mail: sbashir@lbl.gov
Fax: +13615933597
Tel: +13615934253

Abstract

Transition metal oxide based disinfectants offer an effective approach for water purification. The present discovery found that silver (Ag) decorated titania (TiO2) nano-composites displayed high potency at 2.5 ppm within 4 h co-incubation, proved to be effective at 100% inactivation. The composite disinfectant was effective against both Gram-negative and Gram-positive bacteria, Escherichia coli and Staphylococcus aureus, found in drinking water. The mechanism of action is through nanocomposite catalysed photocatalytic oxidation and possible depolarization of the bacterial outer membrane, resulting in disinfection under visible-light conditions.

Graphical abstract: Effective bactericidal performance of silver-decorated titania nano-composites

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Article information

DOI
https://doi.org/10.1039/C2DT31648J
Article type
Paper
Submitted
24 Jul 2012
Accepted
29 Sep 2012
First published
04 Oct 2012

Dalton Trans., 2013,42, 2158-2166

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Effective bactericidal performance of silver-decorated titania nano-composites

J. Liu, Z. Wang, Z. Luo and S. Bashir, Dalton Trans., 2013, 42, 2158 DOI: 10.1039/C2DT31648J

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