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doi:10.22028/D291-24705
Titel: | TiO2 nanoparticle coatings for self-cleaning and antimicrobial application |
VerfasserIn: | Niegisch, Nico Akarsu, Murat Csögör, Zsuzsa Ehses, Markus Schmidt, Helmut K. |
Sprache: | Englisch |
Erscheinungsjahr: | 2002 |
Quelle: | Hygienic coatings : Brussels, Belgium, 8 - 9 July 2002 ; conference papers / [The First Global Conference Dedicated to Hygienic Coatings. The International Centre for Coatings Technology, Paint Research Association]. - Teddington, Middlesex : Paint Research Association, 2002, Paper 26 |
Kontrollierte Schlagwörter: | Nanopartikel Photokatalyse Hydrophobie |
DDC-Sachgruppe: | 620 Ingenieurwissenschaften und Maschinenbau |
Dokumenttyp: | Konferenzbeitrag (in einem Konferenzband / InProceedings erschienener Beitrag) |
Abstract: | The photocatalytic effect of TiO2 (especially anatase) is very well known. For the utilization of this effect for hygienic surfaces, especially on plastic surfaces, a wet coating technology has been developed. To enhance the photocatalytic effect of TiO2, anatase nanoparticles with a narrow volume particle size distribution (d1=7nm, d50=9nm, d90=11nm) have been synthesized and surface modified by hydrophobic components in order to disperse them in organic solvents. Since the photocatalytic effect is a non-specific one, and all organic materials are oxidized, a buffer layer stable against oxidation has been used between plastic substrates and TiO2 top layer. The selfcleaning behaviour was determined by the degradation of bovine serum albumin. After 8 h under irradiation (1200 W/m2) in a sun tester the concentration was decreased from 0.3 mg/cm2 under the limit of detection. To show the antimicrobial effect colony forming bacteria (E. coli) were determined after 10 min irradiation (1200 W/m2) leading to an inactivation of about 50% of 1000 CFU/cm2. Additionally the coated plastic surface shows an antifogging behaviour. |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291-scidok-30296 hdl:20.500.11880/24761 http://dx.doi.org/10.22028/D291-24705 |
ISBN: | 0-9543164-0-1 |
Datum des Eintrags: | 12-Nov-2010 |
Fakultät: | SE - Sonstige Einrichtungen |
Fachrichtung: | SE - INM Leibniz-Institut für Neue Materialien |
Sammlung: | INM SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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sm200206.pdf | 663,35 kB | Adobe PDF | Öffnen/Anzeigen |
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