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

Research output: Contribution to journalArticle

32 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 languageEnglish
Pages (from-to)369-376
Number of pages8
JournalJournal of Industrial and Engineering Chemistry
Volume28
DOIs
Publication statusPublished - Aug 25 2015

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Keywords

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

ASJC Scopus subject areas

  • Chemical Engineering(all)

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