Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 28, Issue -, Pages 369-376Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2015.02.023
Keywords
Escherichia coli; Photo-catalytic disinfection; Cu-doped titanium oxide; River water; Phosphate buffered saline
Funding
- Qatar National Research Fund under its National Priorities Research Program [NPRP 09-328-2-122]
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Both sol gel and wet impregnation method are used to create undoped and Cu doped TiO2 in an effort to enhance the photocatalytic activity, evaluated via the photedegradation and inactivation of Escherichia coli. The results showed that TiO2 doped with 10% CuCl2 prepared by wet-impregnation method resulted in a complete 100% E. coli inactivation within one hour (from similar to 10(6) to 0 CFU/mL). The results also showed that pH has a negligible effect on E. coli inactivation. The use of river water confirmed that photocatalytic disinfection could be quenched by impurities in the water, such as dissolved organic matter. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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