Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume 34, Issue 22, Pages 4754-4758Publisher
AMER CHEMICAL SOC
DOI: 10.1021/es001080+
Keywords
-
Categories
Ask authors/readers for more resources
TiO2 and WO3, with and without noble metal cocatalysts, were employed as photocatalytic surfacing agents to inhibit the attachment and growth of Oedogonium, a sessile, filamentous algae. It was demonstrated that coating a cement substrate with a dispersion of TiO2 powder held in a 10 wt % hinder and irradiating with a combination of black light and fluorescent lamps could effect a 66% reduction in the growth of algae in comparison to the unprotected cement surface. Adding a 1.0 wt % loading of a noble metal such as Pt or Ir to the photocatalyst enabled an 87% reduction. The extent of inhibition was shown to be related to the amount of near-UV light contained in the irradiation source. The ability of the photocatalysts to inhibit algae correlated well with their ability to photooxidize d-(+)-glucose, building block of numerous biochemical polysaccharides, suggesting a nonspecific mechanism in the breakdown of cellular structures.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available