INACTIVATION OF ASPERGILLUS NIGER ON PAINTS CONTAINING ZNO

1 RÁCOVÁ Zuzana
Co-authors:
2 BAUDYS Michal 2 KRÝSA Josef 1 TICHÁ Petra 3 DEMO Pavel
Institutions:
1 CzechTechnical University in Prague, Prague, Czech Republic, EU, zuzana.racova@fsv.cvut.cz, petra.ticha@fsv.cvut.cz
2 University of Chemistry and Technology, Prague, Czech Republic, EU, baudysm@vscht.cz, krysaj@vscht.cz
3 Academy of Sciences of the Czech Republic v.v.i., Institute of Physics, Prague, Czech Republic, EU, demo@fzu.cz
Conference:
10th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 17th - 19th 2018
Proceedings:
Proceedings 10th International Conference on Nanomaterials - Research & Application
Pages:
142-145
ISBN:
978-80-87294-89-5
ISSN:
2694-930X
Published:
28th February 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

Many paints contain special additives such as biocides which act as a prevention against biodeterioration. Presence of nanoparticles of silver and copper may inhibit the grow of microorganism. Self cleaning facade paints containing photocatalytic particles (mostly TiO2) appear also on the market. Such paints are after irradiation of sunlight no to susceptible to soiling and thus help to keep exterior of building clean. Another type of paints is prepared with aim to improve air quality in exterior via photocatalytic oxidation organics compounds such as acetaldehyde, formaldehyde etc. This contribution deals with the application of ZnO particles to water based acrylic paints. The objective is to determined antifungal capability against A. niger. Attention will be also paid to determination of photocatalytic activity. Photocatalytic activity will be determined using indicator ink containing Resazurin dye. This method is based on observation of color change from pink to blue which occurs on photocatalytic surface.

Keywords: Self-cleaning, ZnO, Aspergillus niger, photocatalysis
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