Complex of hydrogels based on acrylic acid and methyl acrylate with copper ions

At the present time, hydrogels are utilised extensively for the purpose of removing heavy metal ions from water. However, the vast majority of chemical hydrogels are harmful to the surrounding ecosystem, and the swelling behaviours of these materials have not been sufficiently researched. Herein, by...

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Bibliographic Details
Published in:Materials today : proceedings 2022, Vol.71, p.38-45
Main Authors: Rakhmetullayeva, R.K., Abutalip, M., Urkimbayeva, Zh.R., Kanzhigitova, D.K., Mangazbayeva, R.A., Naushabayev, A.K., Sarova, N.B., Mukatayeva, Zh.S., Zhigerbayeva, G.N.
Format: Article
Language:English
Subjects:
Acrylic acid
Ionic hydrogels
Methyl acrylate
Radical polymerization
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Summary:At the present time, hydrogels are utilised extensively for the purpose of removing heavy metal ions from water. However, the vast majority of chemical hydrogels are harmful to the surrounding ecosystem, and the swelling behaviours of these materials have not been sufficiently researched. Herein, by radical copolymerization in solution, we synthesized acrylic acid (AA) and methyl acrylate (MA)-based stimuli-responsive hydrogels. We studied the sorption properties of hydrogels based on AA-MA and examined the influence temperature could have on the swelling behaviour of hydrogels in different pH conditions. The structure of the hydrogel was verified using Fourier-transform infrared spectroscopy (FTIR), and the process of heavy metal adsorption was investigated. The complexing characteristics of Cu (II) ions with AA-MA based hydrogels were examined at various concentrations. Before investigating the adsorption of copper ions, the impact of gels on swelling, temperature, and pH in various mediums was investigated. In two hours, the sorption of metal ions at 20% MA was 60%, but at 10% MA, the sorption of metal ions was 80–83%. Having variable thermodynamic parameters and a high absorption efficiency for Cu (II) ions, these AA-MA based hydrogels could be an effective method for removing contamination from aqueous solutions.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2022.07.246