Muneer A. Al-Daamy
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Removal of Malachite Green from Aqueous Solution by PMUC: Equilibrium and Thermodynamic Studies Muneer A. Al-Daamy
Journal of Global Pharma Technology .
Publisher : Journal of Global Pharma Technology

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Abstract

Removal of Malachite green dye has been carried out by using (Porcelanite- Melamine –Urea) (PMUC) as an adsorbent. The characterization of (PMUC) was done by using FTIR spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM) and Atomic force microscopy (AFM) . Different experimental data such as contact time, pH, adsorbent dosage and ionic strength were studied. The equilibrium experimental data were analyzed by Langmuir, Freundlich and Temkin isotherm models. Thermodynamic parameters such as change in free energy (ΔG°), enthalpy (ΔH°), and entropy (ΔS°) were also determined.Keywords: Adsorption, Porcelanite rocks, Malachite green, Isotherms, Langmuir, Freundlich, Temkin.