Simultaneous removal of acidic dyes on binary mixture from aqueous solutions by magnetic basic resin

Karanfil D. Y., Coşkun R., Delibaş A.

Journal of Applied Polymer Science, vol.141, no.44, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 141 Issue: 44
  • Publication Date: 2024
  • Doi Number: 10.1002/app.56173
  • Journal Name: Journal of Applied Polymer Science
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: basic resin, magnetic adsorbent, simultaneous adsorption, Tart- RB4 dye mixture
  • Yozgat Bozok University Affiliated: Yes

Abstract

This study, magnetic basic resin (MBR) was synthesized by radical polymerization and modification. Its functional groups, surface morphology, elemental composition, and magnetic value were determined by ATR-FTIR FE-ESEM, EDX, and VSM techniques. Subsequently, the usability of MBR as an adsorbent in the simultaneous adsorption of Tartrazine (Tart) and Reactive Blue-4 (RB4) dye binary mixtures were examined. Maximum adsorption for both dyes, (170 mg/g for Tart and 184 mg/g for RB4), was observed under acidic conditions at a pH range of 1.5–2. It was determined that the adsorption of both dyes onto MBR occurred in a monolayer, and the saturation time was 90 min for Tart and 60 min for RB4. The adsorption of both dyes fitted the pseudo-second-order kinetic model. It was also concluded that intra-particle diffusion was effective. Based on the thermodynamic parameters, it was concluded that the adsorption proceeded spontaneously and endothermically, additionally, the calculated E values led to the conclusion that electrostatic interactions dominated the adsorption of Tart and RB4. The MBR exhibited a notable affinity for Tart and RB4, even within a dense matrix containing both anions and cations. Furthermore, it maintained this high removal affinity across four consecutive uses, involving adsorption and desorption processes.