Sorption of heavy metal ions by polyampholyte hydrogels
https://doi.org/10.35164/0554-2901-2022-7-8-33-36
Abstract
The ability of polyampholite hydrogels to form polymer-metal complexes, the structure of which was confirmed by IR spectroscopy, was studied. The results of equilibrium sorption treatment showed that Cu2+ and Ni2+ ions attach to the same active site, forming coordination complexes with Cu(II) and Ni(II) ions. It has been established that sorption proceeds according to the ion-exchange mechanism. It has been shown by thermogravimetry that the activation energy of the polymer-metal complexes PDA, BDA with Cu2+, and BDA with Ni2+ is reduced compared to the initial polymers.
About the Authors
V. A. LIPIN
Higher School of Technology and Energy of St. Petersburg State University of Industrial Technologies and Design
Russian Federation
Russian Federation
St.Petrsburg
T. A. POSHVINA
Higher School of Technology and Energy of St. Petersburg State University of Industrial Technologies and Design
Russian Federation
Russian Federation
St.Petrsburg
YU. A. PETROVA
Higher School of Technology and Energy of St. Petersburg State University of Industrial Technologies and Design
Russian Federation
Russian Federation
St.Petrsburg
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Review
For citations:
LIPIN V.A., POSHVINA T.A., PETROVA Yu.A. Sorption of heavy metal ions by polyampholyte hydrogels. Plasticheskie massy. 2022;(7-8):33-36. (In Russ.) https://doi.org/10.35164/0554-2901-2022-7-8-33-36
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