Photocatalytic cement: a new approach to environmental protection
Author(s): Luigi Campanella, Fabio Borzetti, Luigi Cassar
Paper category : conference
Book title: International RILEM Symposium on Photocatalysis, Environment and Construction Materials - TDP 2007
Editor(s): P. Baglioni and L. Casssar
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 203 - 209
Total Pages: 7
Abstract: The interest for photocatalytic cement pastes to protect environment has here been finalized to abate on degradation PM10 concentration considered as the most dangerous pollutant to citizens of urban centres. The catalytic action of these materials was evaluated on measuring the respiratory capacity of yeast Saccharomyces cerevisiae cells incubated with particulate matter samples treated or untreated with them.The cement contained 3% of TiO2 as photoactive catalyst based for its photocatalytic activity on its semiconducting properties.
The experimental time ranged from 24 to 96 hours. The value of abatement was relatively low (about 30%), but it was possible to double it on enriching the cement by addition of TiO2 or by using a cement richer in TiO2 since its preparation step. The catalytic activity is also enhanced by an antimicrobic one.
Online publication: 2011-07-01
Publication type : full_text
Public price (Euros): 0.00