Preparation of nanoparticle-modified polymeric adsorbent using wastage fuzzes of mechanized carpet and its application in dye removal from aqueous solution

چکیده مقاله

In this study, using wastage fuzzes of mechanized carpet, a novel polymeric adsorbent (WPAN), was fabricated by electrospinning method; then, MNP-WPAN, GO-MNP-WPAN and C/GOMNP- WPAN adsorbents were prepared by modifying with magnetic nanoparticle (MNP), graphite oxide (GO) and carboxylate functional group (C), respectively. The nanoparticles and polymeric adsorbents were characterized by FT-IR, SEM, BET, VSM and XRD analyses. The effects of nanoparticles content on polymer structure, pH, sorbent dosage and contact time on the removal of Basic Red 46 (BR 46) from aqueous solution were investigated. In addition, batch experiments were carried out with initial concentration of 5-60 mg/L. Our results showed that the C/GO1%/MNP5%-WPAN spherical polymer (final product) was an effective adsorbent for the BR46 removal, so that the maximum efficiency in removing was 96.92% at pH 11. The correlation coefficients, isotherm and kinetic parameters showed that the Freundlich and pseudosecond order models were the best in describing the equilibrium sorption. The reusability study showed that C/GO1%-MNP5%-WPANpolymer was effective in dye removal about 85% after 5 consecutive use without any modification and the dye desorption.