Article ID Journal Published Year Pages File Type
7224185 Optik - International Journal for Light and Electron Optics 2018 9 Pages PDF
Abstract
The conductor polymer emeraldine polyaniline (PANI) prepared by chemical route at −7 °C, is thermally stable up to 300 °C. The optical and electrical properties were studied by the diffuse reflectance spectra R(λ) in the range (300-2500 nm) to calculate the refractive index n (λ), optical conductivity (σopt), extinction coefficient (k), dissipation factor (tan δ) and relaxation time (τ). The forbidden band (Eg = 1.8 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 90 min.
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Physical Sciences and Engineering Engineering Engineering (General)
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