Adsorption of Aqueous 4-Chlorobiphenyl and Treatment with UV-Illuminated Titanium Dioxide
Resource
Journal of Colloid and Interface Science 196 (2): 199-206
Journal
Journal of Colloid and Interface Science
Journal Volume
196
Journal Issue
2
Pages
199-206
Date Issued
1997
Date
1997
Author(s)
Kuo, Chao-Yin
Abstract
The research of 4-chlorobiphenyl in aqueous solution was conducted in two parts. The first part of the study explored the adsorption of 4-chlorobiphenyl onto glass. When the initial concentration of 4-chlorobiphenyl was below 25 μg/L, the sample concentration became undetectable after 24 h. With respect to 4-chlorobiphenyl adsorbed onto glass, the adsorption rate constant k was 18 μg/h L, the adsorption equilibrium constant K was nearly 10-3 μg/L using the Langmuir first-order reaction model, and the monolayer saturated density, using the BET model, was 1200 μg/m2. In the second half of this study, the photocatalytic oxidation (UV/TiO2) of 4-chlorobiphenyl was investigated using its adsorption characteristics. The UV/TiO2 process decreased the 4-chlorobiphenyl concentration (initial concentration = 500 μg/L) by 77% within 120 min. The ratio between the TiO2 adsorption rate constant and the UV/TiO2 process degradation rate constant was 1/105.
Subjects
4-chlorobiphenyl; Adsorption; Glass; Langmuir first-order reaction; Photocatalytic oxidation; UV/TiO2 process
Other Subjects
4 chlorobiphenyl; glass; polychlorinated biphenyl; titanium dioxide; unclassified drug; adsorption; aqueous solution; article; contamination; illumination; photoreactivity; priority journal; quality control; study
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
15.pdf
Size
217.61 KB
Format
Adobe PDF
Checksum
(MD5):6e6dafb03e0538f0a472e614bbb6b52d