Photocatalytic disinfection of Escherichia coli using TiO2 P25 and Cu-doped TiO2

Majeda Khraisheh; Lijun Wu; Ala'a H. Al-Muhtaseb; Mohammad A. Al-Ghouti

doi:10.1016/j.jiec.2015.02.023

Photocatalytic disinfection of Escherichia coli using TiO₂ P25 and Cu-doped TiO₂

Majeda Khraisheh, Lijun Wu, Ala'a H. Al-Muhtaseb, Mohammad A. Al-Ghouti^*

^*Corresponding author for this work

Petroleum and Chemical Engineering

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

55 Citations (Scopus)

Abstract

coli inactivation.coli inactivation in the range of 4-9.coli inactivation by a factor less than 3. 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 ~10⁶ to 0CFU/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.

Original language	English
Pages (from-to)	369-376
Number of pages	8
Journal	Journal of Industrial and Engineering Chemistry
Volume	28
DOIs	https://doi.org/10.1016/j.jiec.2015.02.023
Publication status	Published - Aug 25 2015

Keywords

Cu-doped titanium oxide
Escherichia coli
Phosphate buffered saline
Photo-catalytic disinfection
River water

ASJC Scopus subject areas

Chemical Engineering(all)

Access to Document

10.1016/j.jiec.2015.02.023

Cite this

@article{9fc98c973603451da45f1463dd084e39,

title = "Photocatalytic disinfection of Escherichia coli using TiO2 P25 and Cu-doped TiO2",

abstract = "coli inactivation.coli inactivation in the range of 4-9.coli inactivation by a factor less than 3. 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 ~106 to 0CFU/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.",

keywords = "Cu-doped titanium oxide, Escherichia coli, Phosphate buffered saline, Photo-catalytic disinfection, River water",

author = "Majeda Khraisheh and Lijun Wu and Al-Muhtaseb, {Ala'a H.} and Al-Ghouti, {Mohammad A.}",

note = "Funding Information: The authors thank for a grant from the Qatar National Research Fund under its National Priorities Research Program award number NPRP 09-328-2-122. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the Qatar National Research fund. Publisher Copyright: {\textcopyright} 2015 The Korean Society of Industrial and Engineering Chemistry.",

year = "2015",

month = aug,

day = "25",

doi = "10.1016/j.jiec.2015.02.023",

language = "English",

volume = "28",

pages = "369--376",

journal = "Journal of Industrial and Engineering Chemistry",

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publisher = "Korean Society of Industrial Engineering Chemistry",

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T1 - Photocatalytic disinfection of Escherichia coli using TiO2 P25 and Cu-doped TiO2

AU - Khraisheh, Majeda

AU - Wu, Lijun

AU - Al-Muhtaseb, Ala'a H.

AU - Al-Ghouti, Mohammad A.

N1 - Funding Information: The authors thank for a grant from the Qatar National Research Fund under its National Priorities Research Program award number NPRP 09-328-2-122. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the Qatar National Research fund. Publisher Copyright: © 2015 The Korean Society of Industrial and Engineering Chemistry.

PY - 2015/8/25

Y1 - 2015/8/25

N2 - coli inactivation.coli inactivation in the range of 4-9.coli inactivation by a factor less than 3. 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 ~106 to 0CFU/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.

AB - coli inactivation.coli inactivation in the range of 4-9.coli inactivation by a factor less than 3. 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 ~106 to 0CFU/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.

KW - Cu-doped titanium oxide

KW - Escherichia coli

KW - Phosphate buffered saline

KW - Photo-catalytic disinfection

KW - River water

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