Immobilization of laccase on itaconic acid grafted and Cu(II) ion chelated chitosan membrane for bioremediation of hazardous materials

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BAYRAMOĞLU G., GÜRSEL İ., YILMAZ M., ARICA M.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, vol.87, no.4, pp.530-539, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 87 Issue: 4
  • Publication Date: 2012
  • Doi Number: 10.1002/jctb.2743
  • Journal Name: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.530-539
  • Keywords: chitosan, itaconic acid, graft copolymerization, enzyme immobilization, laccase, dye degradation, METAL AFFINITY ADSORPTION, REVERSIBLE IMMOBILIZATION, COVALENT IMMOBILIZATION, CATALYTIC-PROPERTIES, SYNTHETIC DYES, AZO DYES, BEADS, OXIDATION, ENZYMES, BIODEGRADATION
  • Ankara Haci Bayram Veli University Affiliated: No

Abstract

BACKGROUND: Chitosan membranes were formed through a phase inversion technique and then cross-linked with epichlorohydrin (CHX). Heterogeneous graft copolymerization of itaconic acid (IA) onto membrane was carried out with different monomer concentrations (CHX-g-p(IA)). The membrane properties such as equilibrium swelling ratio, porosity, and contact angle were measured, together with analysis by scanning electron microscopy (SEM), energy dispersive analysis of X-rays (EDAX), atomic force microscopy (AFM), and Fourier transform infrared (FTIR) spectroscopy.