Polymers and Polymer Composites

ADSORPTION KINETICS STUDIES OF POLYMERIC NANOCOMPOSITE COAGULANTS

March 1, 2013 By: Seher Uzunsakal; Serhat Zeytinci; Uyanik O L; Nurseli Uyanik Research article

Title: ADSORPTION KINETICS STUDIES OF POLYMERIC NANOCOMPOSITE COAGULANTS
Page Range: p.161-170
Author(s): Seher Uzunsakal; Serhat Zeytinci; Uyanik O L; Nurseli Uyanik
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 21
Issue No: No.3

Abstract
The aim of this study is to investigate the adsorption characteristics of dicyandiamide-formaldehyde resin (DCD-F) nanocomposites. For this purpose, 2%, 4%, and 8% unmodified layered silicate clay (Na-Montmorillonite) containing DCD-F nanocomposites (DCD-F- MMT) were prepared. The synthesised samples were structurally defined by XRD, SEM-EDX, and TGA characterisations. The adsorption performance of nanocomposites was tested by using two anionic dyes. Adsorption capacities of pure resin and three nanocomposites were followed against time and the nanocomposite containing 8% Na-MMT (DCD-F-MMT8%) was found to have the highest equilibrium adsorption capacity (qe). Therefore, the effects of dye concentration, pH, and temperature on qe were investigated using DCD-F-MMT8%. The kinetic and thermodynamic parameters of adsorption were obtained based on the experimental data. 10 Refs.


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