Effective removal of toxic metal ions from aqueous solutions: 2-Bifunctional magnetic nanocomposite base on novel reactive PGMA-MAn copolymer@Fe3O4 nanoparticles

Reza Hasanzadeh; Peyman Najafi Moghadam; Naeimeh Bahri-Laleh; Mika Sillanpää

doi:10.1016/j.jcis.2016.11.098

Effective removal of toxic metal ions from aqueous solutions: 2-Bifunctional magnetic nanocomposite base on novel reactive PGMA-MAn copolymer@Fe₃O₄ nanoparticles

J Colloid Interface Sci. 2017 Mar 15:490:727-746. doi: 10.1016/j.jcis.2016.11.098. Epub 2016 Dec 5.

Authors

Reza Hasanzadeh¹, Peyman Najafi Moghadam², Naeimeh Bahri-Laleh³, Mika Sillanpää⁴

Affiliations

¹ Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran. Electronic address: Reza.hasanzade7@gmail.com.
² Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran. Electronic address: p_najafi27@yahoo.com.
³ Department of Polymerization Engineering, Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Iran. Electronic address: n.bahri@ippi.ac.ir.
⁴ Department of Chemistry, Lappeenranta University of Technology, Lappeenranta, South Karelia, Finland; Department of Civil and Environmental Engineering, Florida International University, Miami, FL 33174, USA. Electronic address: mika.sillanpaa@lut.fi.

PMID: 27978456
DOI: 10.1016/j.jcis.2016.11.098

Abstract

In this study, effective novel magnetic nanocomposite particles (MNCPs) were prepared based on iminodiacetic acid grafted poly (glycidylmethacrylate-maleicanhydride) (PGMA-MAn) copolymer. For this purpose, firstly Fe₃O₄ nanoparticles reacted with 3-aminopropyl triethoxysilane for the production of magnetite nanoparticles containing amine groups (MNPs-NH₂). Then iminodiacetic acid reacted with PGMA-MAn copolymer to produce iminodiacetic acid grafted PGMA-MAn copolymer (ID-g-PGMA-MAn). Finally, the MNPs-NH₂ reacted with the ID-g-PGMA-MAn and the reaction was completed by propylenediamine (PDA) to produce MNCPs. Structure, magnetic property, size, and porosity of the prepared magnetic nanocomposite were investigated by FT-IR, XRD, VSM, EDX, SEM and BET analyses. The ability of these MNCPs for removing Pb(II) and Cd(II) from water and wastewater was studied, and the effects of different parameters (pH, adsorbent dosage, metal ion concentration, contact time and agitation) on the adsorption process were investigated. The isotherm models were used to describe adsorption equilibrium. The results showed that the best fit was achieved with the Langmuir isotherm equation, yielding maximum adsorption capacities of 53.33 and 48.53mg/g for Pb(II) and Cd(II), respectively. The kinetics equations were used for modeling of adsorption data and it was shown that pseudo-second-order kinetic equation could best describe the adsorption kinetics. Furthermore, phenol pollutant can be removed effectively by metal ions of the nanocomposite-metal complex; therefore, the synthesized adsorbent was useful not only in recovering toxic metal ions but also in the treating phenol pollutants in wastewater.

Keywords: Fe(3)O(4) nanoparticles; Magnetic adsorbent; Nanocomposite; Reactive copolymer; Removal; Toxic metal ions.