Citation
Chan, Kok Sheng and Mat Yunus, Wan Mahmood and Wan Yunus, Wan Md. Zin and Talib, Zainal Abidin and Abd. Moksin, Mohd Maarof
(2003)
Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix.
Solid State Science and Technology, 11 (1).
pp. 124-130.
ISSN 0128-7389
Abstract
In this paper, The photobleaching of methylene blue (MB) doped in poly(vinyl alcohol) (PVA) matrix was investigated using an uv-visible fibre optic spectrophotometer. The absorption observed at 660nm decreases with the increasing of the exposure time. The blue color of the MB doped PVA sample turned completely colorless after irradiation for 360 seconds. The optical transmission of the samples at different dye concentration was measured in the range of 450-800nm. The photobleaching mechanism in the present sample was also discussed. The experimental results shown that the material studied could be a good candidate for waveguide devices.
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Additional Metadata
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Environmental Studies |
| Publisher: | Malaysian Solid State Science and Technology Society |
| Keywords: | Photobleaching; Photodegradation; Methylene blue; Uv-visible fibre optic spectrophotometer |
| Depositing User: | Nabilah Mustapa |
| Date Deposited: | 12 Apr 2016 04:19 |
| Last Modified: | 22 Sep 2016 08:42 |
| URI: | http://psasir.upm.edu.my/id/eprint/42204 |
| Statistic Details: | View Download Statistic |
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