Dresden 2011 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 36: Poster: Nanoparticles and Composite Materials
CPP 36.12: Poster
Wednesday, March 16, 2011, 17:00–19:00, P2
TiO2-Ag nanocomposites for antimicrobial and photocatalytic application — •Tomislav Hrkac1, Venkata Sai Krian Chakravadhanula1, Natalie Wohner1, Bodo Henkel1, Thomas Strunskus1, Vladimir Zaporojtchenko1, Rainer Podschun2, Claudia Röhl3, Dieter Garbe-Schönberg4, and Franz Faupel1 — 1Institute for Materials Science - Multicomponent Materials, Christian-Albrechts-University Kiel (CAU) — 2Institute for Infection Medicine, CAU Kiel and University Medical Center Schleswig-Holstein Campus Kiel (UKSH) — 3Institute of Toxicology and Pharmacology for Natural Scientists, UKSH Kiel — 4Institute of Geosciences, CAU Kiel
Nanocomposites offer the possibility to combine the antimicrobial property of Ag with the photocatalytic activity of TiO2 in one material. Here TiO2-Ag 3D nanocomposites with different filling factor and different morphologies were prepared by physical vapor deposition techniques. The antimicrobial and toxicological properties were studied and correlated to the silver release measured by ICP-MS. The optical and structural properties of the composite were characterized by UV-Vis, XRD, HRTEM and XPS, and the photocatalytic activity was determined by UV illuminated dye photodegradation. Considering the different morphologies the correlation of antimicrobial efficiency and silver release will be discussed.