Roll-to-roll application of photocatalytic TiO2 nanoparticles for printed functionality

A4 Conference proceedings


Internal Authors/Editors


Publication Details

List of Authors: J. J. Saarinen, D. Valtakari, R. Bollström, M. Stepien, J. Haapanen, J. M. Mäkelä, M. Toivakka
Editors: NSTI
Publication year: 2016
Publisher: TechConnect
Book title: Advanced manufacturing, electronics and microsystems : TechConnect briefs 2016
Title of series: Nanotech 2016 Conference Proceedings
Volume number: 4
Start page: 47
End page: 50
eISBN: 9780997511734


Abstract

In this work ultraviolet A (UVA) light controlled photocatalytic activity of TiO2 nanoparticles is utilized on paper, paperboard, and plastic films for controlled wetting
and oxygen sensors for modified atmosphere packages (MAPs). A liquid flame spray (LFS) process is used for a large-area TiO2 nanoparticle deposition on natural fibre
based substrates such as paperboard that results in a superhydrophobic surface. Controlled wettability is achieved using an UVA light activation that converts the surface to hydrophilic whereas an oven heat treatment recovers the initial superhydrophobicity. On the other hand, a TiO2 nanoparticles with methylene blue (MB) dye is used to detect the presence of oxygen in modified atmosphere
packages. We believe that photocatalytically active surfaces with tailorable properties will find many applications in the near future, for example, with printed functional devices.


Keywords

Nanoparticle, Photocatalysis, TiO2, Wetting

Last updated on 2019-23-08 at 05:03