Original title: Photocatalytic concrete screeds with self-cleaning and antimicrobial function
Authors: Bíbová, Hana ; Šubrt, Jan ; Pližingrová, Eva ; Jakubičková, M. ; Sázavská, T. ; Dohnálek, P. ; Hykrdová, Lenka ; Jirkovský, Jaromír
Document type: Papers
Conference/Event: International Conference on Nanomaterials - Research and Application, NANOCON 2019 /11./, Brno (CZ), 20191016
Year: 2020
Language: eng
Abstract: Photocatalytic concrete screeds with self-cleaning and antimicrobial function have been developed and tested. These building materials contain sand grains with deposited composite TiO2/SiO2 layers. Two types of the screeds, grey and white, were prepared and their photoactivity and material characteristics were compared. Commercial TiO2 photocatalysts from several manufacturers were employed. Effects of different parameters, such as temperature of the coated sand calcination, humidity, and surface abrasion, were followed. Mechanical properties of the screeds were analyzed by SEM/XRD microscopy. Photocatalytic activity was tested by means of NOx oxidation (ISO norm 22197-1/2007). Antibacterial activity was evaluated by modified ISO norm 27447/2009 with Bacillus subtilis as a model organism.
Keywords: Antimicrobial activity; NOx; Photodegradation; Self-cleaning screed; sem
Project no.: LM2015073 (CEP), FV20234
Funding provider: GA MŠk, GA MPO
Host item entry: NANOCON 2019. Conference Proceedings International Conference on Nanomaterials, ISBN 978-80-87294-95-6, ISSN 2694-930X

Institution: J. Heyrovsky Institute of Physical Chemistry AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0317944

Permalink: http://www.nusl.cz/ntk/nusl-437958


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Research > Institutes ASCR > J. Heyrovsky Institute of Physical Chemistry
Conference materials > Papers