Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7224185 | Optik - International Journal for Light and Electron Optics | 2018 | 9 Pages |
Abstract
The conductor polymer emeraldine polyaniline (PANI) prepared by chemical route at â7â¯Â°C, is thermally stable up to 300â¯Â°C. The optical and electrical properties were studied by the diffuse reflectance spectra R(λ) in the range (300-2500â¯nm) to calculate the refractive index n (λ), optical conductivity (Ïopt), extinction coefficient (k), dissipation factor (tan δ) and relaxation time (Ï). The forbidden band (Egâ¯=â¯1.8â¯eV), was evaluated and confirmed by different methods. As application, the results show that the adsorption kinetic follows a pseudo first order for Orange II and the second order for Quinoline Yellow. The PANI thus prepared and studied has been used in the field of the environment. A systematic study of adsorption and photodegradation of Orange II and Quinoline yellow was carried out giving a depollution rate >90% in a time of 90â¯min.
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Authors
C. Belabed, B. Bellal, A. Tab, K. Dib, M. Trari,