Tampere University of Technology

TUTCRIS Research Portal

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publicationAdvanced Manufacturing, Electronics and Microsystems
Subtitle of host publicationTechConnect Briefs 2016
PublisherTechConnect
Pages47-50
Number of pages4
Volume4
ISBN (Electronic)9780997511734
Publication statusPublished - 2016
Publication typeA4 Article in a conference publication
EventTechConnect: World Innovation Conference -
Duration: 1 Jan 2006 → …

Conference

ConferenceTechConnect
Period1/01/06 → …

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

  • Controlled wetting, Nanoparticles, O sensor, Photocatalysis, TiO

Publication forum classification

Field of science, Statistics Finland