Experimental investigation of efficiency of tio2-cement coating for self-cleaning and air purification

Title: Experimental investigation of efficiency of tio2-cement coating for self-cleaning and air purification
Author(s): A. Beeldens
Paper category : conference
Book title: RILEM International Symposium on Environment-Conscious Materials and Systems for Sustainable Development
Editor(s): N. Kashino and Y. Ohama
Print-ISBN: 2-912143-55-1
e-ISBN: 2912143640
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 353 - 359
Total Pages: 7
Nb references: 3
Language: English

Abstract: Heterogeneous photocatalysis is a rapidly developing field in environmental engineering. It has a great potential to cope with the increasing pollution. The addition of a photocatalyst to ordinary building materials such as concrete, creates environmental friendly materials by which for example the air pollution or the pollution of the surface itself can be diminished.TiO2 is added to a cement mortar in order to diminish the air polluting effect by exhaust gasses. In particular, the conversion of NOx to NO3- is measured. In order to understand the process and to optimize the TiO2-content and the mixture composition, a laboratory research program is set up. A detailed study of the principles of photocatalysis and of the interaction between TiO2 and concrete is carried out. Laboratory tests were made to investigate the influence of the amount of TiO2; the influence of type of light and the type of TiO2.This paper presents an overview of the principle of photocatalysis and the application in combination with cement, as well as the results of the laboratory research. A project has been started, funded by the IWT (Institute for encouragement of Innovation by science and technology in Flanders, Belgium) to investigate the photocatalytic effect of TiO2 towards self-cleaning and air-purifying activity .The scope of this project is pointed out in this paper.

Online publication: 2004-11-24
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143640.042