Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix
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...
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| Format: | Article |
| Language: | English |
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Malaysian Solid State Science and Technology Society
2003
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| Online Access: | http://psasir.upm.edu.my/id/eprint/42204/ http://psasir.upm.edu.my/id/eprint/42204/1/Uv-visible%20photodegradation%20of%20methylene%20blue%20doped%20in%20poly%28vinyl%20alcohol%29%28PVA%29%20solid%20matrix.pdf |
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| author | Chan, Kok Sheng Mat Yunus, Wan Mahmood Wan Yunus, Wan Md. Zin Talib, Zainal Abidin Abd. Moksin, Mohd Maarof |
| author_facet | Chan, Kok Sheng Mat Yunus, Wan Mahmood Wan Yunus, Wan Md. Zin Talib, Zainal Abidin Abd. Moksin, Mohd Maarof |
| author_sort | Chan, Kok Sheng |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-15T09:57:46Z |
| format | Article |
| id | upm-42204 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:57:46Z |
| publishDate | 2003 |
| publisher | Malaysian Solid State Science and Technology Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-422042016-09-22T08:42:14Z http://psasir.upm.edu.my/id/eprint/42204/ Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix Chan, Kok Sheng Mat Yunus, Wan Mahmood Wan Yunus, Wan Md. Zin Talib, Zainal Abidin Abd. Moksin, Mohd Maarof 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. Malaysian Solid State Science and Technology Society 2003 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/42204/1/Uv-visible%20photodegradation%20of%20methylene%20blue%20doped%20in%20poly%28vinyl%20alcohol%29%28PVA%29%20solid%20matrix.pdf 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 http://masshp.net/journal/all%20journal/VOLUME%2011%20NO.%201,%202003/htm/Vol.%2011,%20No.1%20%282003%29%20124-%20130.htm |
| spellingShingle | Chan, Kok Sheng Mat Yunus, Wan Mahmood Wan Yunus, Wan Md. Zin Talib, Zainal Abidin Abd. Moksin, Mohd Maarof Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix |
| title | Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix |
| title_full | Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix |
| title_fullStr | Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix |
| title_full_unstemmed | Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix |
| title_short | Uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(PVA) solid matrix |
| title_sort | uv-visible photodegradation of methylene blue doped in poly(vinyl alcohol)(pva) solid matrix |
| url | http://psasir.upm.edu.my/id/eprint/42204/ http://psasir.upm.edu.my/id/eprint/42204/ http://psasir.upm.edu.my/id/eprint/42204/1/Uv-visible%20photodegradation%20of%20methylene%20blue%20doped%20in%20poly%28vinyl%20alcohol%29%28PVA%29%20solid%20matrix.pdf |