Photocatalytic Degradation of Polychlorinated Dibenzo-p-dioxins on TiO sub(2) Film Under UV or Solar Light Irradiation

The photolytic degradation of PCDDs on titanium dioxide film under UV or solar radiation was investigated. After irradiation, the residual parent PCDDs and any stable intermediates on the film were extracted and analyzed. All of the PCDDs showed a strong absorption band in the range of 230 260 nm, w...

Full description

Saved in:
Bibliographic Details
Published in:Environmental science & technology 2000-11, Vol.34 (22), p.4810-4810
Main Authors: Choi, Wonyong, Hong, Soo Jin, Chang, Yoon-Seok, Cho, Youngmin
Format: Article
Language:English
Subjects:
titanium dioxide
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The photolytic degradation of PCDDs on titanium dioxide film under UV or solar radiation was investigated. After irradiation, the residual parent PCDDs and any stable intermediates on the film were extracted and analyzed. All of the PCDDs showed a strong absorption band in the range of 230 260 nm, with the adsorption band shifting to longer wavelengths as the number of substituted chlorines increased. Photodegradation efficiency was similar under UV and solar irradiation. 2-MonoCDD exhibited the fastest photodegradation rate, followed by TCDD, heptaCDD, and octaCDD.
ISSN:0013-936X