A rapid and sensitive method for separation of Cu2+ ions from industrial wastewater sample and water samples with methacrylamide‐ethylene glycol dimethacrylate: A new synthesis of molecularly imprinted polymer. Issue 9 (16th September 2021)

• Record Type: Journal Article
• Authors: Azizinezhad, Fariborz; Moghimi, Ali
• Is Part Of: IET nanobiotechnology. Volume 15:Issue 9(2021)
• Page Start: 698
• Page End: 709
• Publication Date: 2021-09-16
• Subjects: adsorption -- isotherm -- molecularly imprinted polymer (MIP) -- removal of Cu2+; copper -- cadmium -- wastewater treatment -- polymers -- pH -- scanning electron microscopy -- thermal analysis -- polymerisation -- Fourier transform infrared spectra -- reaction kinetics -- separation -- positive ions -- hydrogen compounds; Biotechnology -- Periodicals; Nanotechnology -- Periodicals; 660.6
• DOI: 10.1049/nbt2.12068
• Languages: English
• ISSNs: 1751-8741

Abstract

Abstract: In this study, new molecularly imprinted polymer particles (MIP) were synthesised to extract Cu 2+ ions from aqueous solutions using radical polymerisation. MIP was developed using the methacrylamide‐ethylene glycol dimethacrylate (EGDMA) cross linking agent, methacrylamide monomer, and ACV initiator by the radical polymerisation method. A comparison of various cross linking agents in MIP production showed that the best cross linking agents are EGDMA and gallic acid. The template ions were removed by leaching with 0.100 M HCl. The polymer particles were characterised by FTIR spectroscopy, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The effect of different parameters such as cross linkers, pH, time, maximum adsorption capacity, and kinetic and isotherm adsorption were investigated. The best conditions were determined (pH = 8.0, t = 10 min, and q m = 262.53 mg g −1 ). The adsorption data were best fitted by Freundlich isotherm and pseudo second order kinetic models, as well. Due to its high adsorption capacity and multi‐layer behaviour, this method is an easy, fast and safe way to extract cations. Removal of Cu 2+ in certified tap water and rain water was demonstrated and the industrial wastewater sample (Charmshahr, Iran) with which the MIP was developed using Methacrylamide‐ Ethylene Glycol Dimethacrylate (EGDMA) was good enough for Cu 2+ determination in matrices containing components with similar chemical property such as Co 2+, Zn 2+, Fe 2 .