Title
Emission of Titanium Dioxide Nanoparticles from Building Materials to the Environment by Wear and Weather
Author
Shandilya, N.
Le Bihan, O.
Bressot, C.
Morgeneyer, M.
Publication year
2015
Abstract
In the present work, we investigate the effect of weathering duration on a commercial photocatalytic nanocoating on the basis of its nanoparticle emission tendency into two media, air and water. It is found that increased weathering duration results in stepwise structural deterioration of the nanocoating, which in turn decreases the nanocoating life, changes the nanocoating removal mechanism, and increases the particle emission concentration. Emission of free TiO2 nanoparticles is found to be weathering duration dependent. Three quantities are introduced: emission transition pace (ETP), stable emission level (SEL), and stable emission duration (SED). By linear extrapolation of these quantities from short weathering durations, complete failure of the nanocoatings can be predicted and, moreover, the potential increase of nanoparticles release into the air.
Subject
Life
RAPID - Risk Analysis for Products in Development
ELSS - Earth, Life and Social Sciences
Biomedical Innovation
Biology
Healthy Living
To reference this document use:
http://resolver.tudelft.nl/uuid:45509192-1287-4793-8a54-cb4628016e5c
DOI
https://doi.org/10.1021/es504710p
TNO identifier
807292
Source
Environmental Science and Technology, 49 (4), 2163-2170
Document type
article