OUTDOOR EXPOSURE TEST OF PHOTOCATALYST-COATED MATERIALS IN VARIOUS TEST LOCATIONS WITHIN ASIA

Author(s): Toyoda, H., Murakami, T., Sano, T. and Takeuchi, K.
Paper category: Conference
Book title: XIII International Conference on Durability of Building Materials and Components - XIII DBMC
Editor(s): Marco Quattrone, Vanderley M. John
Print ISBN: none
e-ISBN: 978-2-35158-149-0
Publication year: 2015
Pages: 882-888
Total Pages: 7
Language: English

Abstract: Photocatalytic coatings have been widely used for building materials in order to keep their surfaces clean or to remove the environmental contaminants. Test methods for selfcleaning have been often published [1-4], but its performance has not been confirmed in different environmental conditions.

Then as a collaborative work of the Committee of Asian Standardization for Photocatalytic Materials and Products (CASP), that was established in 2007 to develop standard test methods, we have carried out the outdoor exposure test of both titanium dioxide (TiO2)-coated and non- coated materials for nine months at twelve test locations in Asian countries.

Japan, as the organizer, prepared and supplied the test pieces for the outdoor exposure test. The color difference between exposed materials and initial materials was measured to evaluate self-cleaning performance.

The TiO2-coated materials showed excellent self-cleaning performance throughout the Asian countries. The original appearance of the materials can be maintained for a long time by application of a photocatalytic material, TiO2. This result indicates that the photocatalysis aides in reducing the cost for cleaning as well as extending the life of the materials.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00