UV-VISIBLE PHOTODEGRADATION OF METHYLENE BLUE DOPED IN POLY(VINYL ALCOHOL)(PVA) SOLID MATRIX

Authors

  • Kok Sheng Chan Department of Physics, Faculty of Science and Environmental Studies, Universiti Putra Malaysia 43400 UPM Serdang, Malaysia. Author
  • W. Mahmood Mat Yunus Department of Physics, Faculty of Science and Environmental Studies, Universiti Putra Malaysia 43400 UPM Serdang, Malaysia. Author
  • Yunus Wan Md. Zin Department of Chemistry, Faculty of Science and Environmental Studies, Universiti Putra Malaysia 43400 UPM Serdang, Malaysia. Author
  • Zainal Abidin Talib Department of Physics, Faculty of Science and Environmental Studies, Universiti Putra Malaysia 43400 UPM Serdang, Malaysia. Author
  • Mohd Maarof Moksin Department of Physics, Faculty of Science and Environmental Studies, Universiti Putra Malaysia 43400 UPM Serdang, Malaysia. Author

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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Published

17-08-2025

Issue

Vol. 11 No. 1 (2003): Solid State Science and Technology

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

How to Cite

Chan, K. S., Mat Yunus, W. M., Wan Md. Zin, Y., Talib, Z. A., & Moksin, M. M. (2025). UV-VISIBLE PHOTODEGRADATION OF METHYLENE BLUE DOPED IN POLY(VINYL ALCOHOL)(PVA) SOLID MATRIX . Solid State Science and Technology, 11(1), 124-130. https://journal.massmalaysia.org/ojs/index.php/ssst/article/view/121