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

Jarkko Saarinen, Dimitar Valtakari, R. Bollström, M. Stepien, J. Haapanen, J. M. Mäkelä, Martti Toivakka

Forskningsoutput: Kapitel i bok/konferenshandlingKonferensbidragVetenskapligPeer review

Sammanfattning

In this work ultraviolet A (UVA) light controlled photocatalytic activity of TiO2 nanoparticles is utilized on paper, paperboard, and plastic films for controlled wettingand oxygen sensors for modified atmosphere packages (MAPs). A liquid flame spray (LFS) process is used for a large-area TiO2 nanoparticle deposition on natural fibrebased 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 atmospherepackages. We believe that photocatalytically active surfaces with tailorable properties will find many applications in the near future, for example, with printed functional devices.
OriginalspråkOdefinierat/okänt
Titel på gästpublikationAdvanced manufacturing, electronics and microsystems : TechConnect briefs 2016
Redaktörer NSTI
FörlagTechConnect
Sidor47–50
ISBN (elektroniskt)9780997511734
StatusPublicerad - 2016
MoE-publikationstypA4 Artikel i en konferenspublikation
EvenemangTechConnect World Innovation Conference - TechConnect World Innovation Conference & Expo – Nanotech 2016
Varaktighet: 22 maj 201625 maj 2016

Konferens

KonferensTechConnect World Innovation Conference
Period22/05/1625/05/16

Nyckelord

  • Nanoparticle
  • Photocatalysis
  • TiO2
  • Wetting

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