Indoor and Built Environment

 

Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Register here to gain access to SAGE's 500+ Journals Online

Sign In to gain access to subscriptions and/or personal tools.
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Yu, H.
Right arrow Articles by Rossi, C.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
Indoor and Built Environment, Vol. 16, No. 6, 529-537 (2007)
DOI: 10.1177/1420326X07083513

Experimental Study of the Photocatalytic Degradation of Formaldehyde in Indoor Air using a Nano-particulate Titanium Dioxide Photocatalyst

Huili Yu

College of Engineering, Ocean University of China, China

Kaili Zhang

LAAS-CNRS, Université de Toulouse, Toulouse, France, kaili_zhang{at}hotmail.com

Carole Rossi

LAAS-CNRS, Université de Toulouse, Toulouse, France

Formaldehyde in the indoor environment may be degraded using nano-particulate titanium dioxide (TiO2) photocatalysis to improve air quality. In the work described, a polytetrafluoroethylene filter is employed as the substrate for a nano-particulate TiO2 coating. This is mounted in an experimental setup developed for the tests, similar to an actual air purification system, which are conducted at room temperature. The effects on the formaldehyde photocatalytic degradation rate of some key factors are investigated, including initial concentration, stream flow rate, reaction temperature, light source intensity, and relative humidity. Within the experimental ranges studied, the degradation rate increases with the enhancement of initial concentration and light intensity. The stream flow rate and reaction temperature have dual effects on the degradation rate. It is shown that the degradation rate is relatively high under low relative humidity.

Key Words: Nano • TiO2 • Photocatalysis • Formaldehyde • Experiment


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?