Controlling biofilm growth using reactive ceramic ultrafiltration membranes

Shannon Ciston, Richard M. Lueptow, Kimberly A. Gray*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


Fouling due to biofilms composed primarily of microorganisms and extracellular polymeric substances is a significant hindrance to membrane filtration in water treatment. The goal of this work was to use a reactive membrane surface to reduce membrane biofouling by coating a ceramic ultrafiltration membrane with the nanoparticulate photocatalyst, TiO2. 10-Day biofilm growth experiments were conducted to determine the effect of photocatalytic coatings on the formation of a Pseudomonas putida biofilm and subsequent changes in membrane flux. Results indicate that a highly hydrophilic, photoreactive coating of mixed phase TiO2 nanoparticles is effective for the control of biofouling on ceramic ultrafiltration membranes.

Original languageEnglish (US)
Pages (from-to)263-268
Number of pages6
JournalJournal of Membrane Science
Issue number1-2
StatePublished - Oct 15 2009


  • Biofilm
  • Biofouling
  • Photocatalysis
  • Titanium dioxide
  • Ultrafiltration

ASJC Scopus subject areas

  • Biochemistry
  • General Materials Science
  • Physical and Theoretical Chemistry
  • Filtration and Separation


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