Oriented Processes for Extraction and Recovery of Blue P3R Dye across Hybrid Polymer Membranes: Parameters and Mechanism

Document Type: Research Paper


1 Laboratoire Genie des Materiaux pour Environnement et Valorisation (GeMEV), Equipe I3MP, Universite Hassan II, Faculte des Sciences Ain Chock, B.P. 5366, Maarif, Casablanca, Morocco

2 Institut de Sciences Des Materiaux De Mulhouse (IS2M-UMR 7361 CNRS - UHA)- Mulhouse, France

3 Laboratoire de Recherche sur les Materiaux Textiles (REMTEX), ESITH, Casablanca, Morocco



In the present work, two asymmetric polymer membranes based on polyvinylidene fluoride (PVDF) and polyvinylpyrrolidone (PVP) with chitin and chitosan (as extractive agents) were synthesized through the phase inversion technique, and the mechanisms of oriented process for the facilitated extraction of blue P3R dye across the as-prepared membranes were elucidated through different experiments. Further, kinetic and thermodynamic models based on Fick's first law were used to determine the macroscopic (permeability (P) and initial flux (J0)) and the microscopic (association constant (Kass) and apparent diffusion coefficient (D*)) parameters of the membranes. Finally, the values of different activation parameters (energy (Ea), enthalpy (ΔH), and entropy (ΔS)) were determined using theoretical models, and the analytical results revealed a kinetic control through the PVDF/PVP-chitin membrane and an energetic control through its PVDF/PVP-chitosan counterpart.


Main Subjects

Articles in Press, Accepted Manuscript
Available Online from 05 June 2019
  • Receive Date: 17 November 2018
  • Revise Date: 30 May 2019
  • Accept Date: 02 March 2019