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Published in: Journal of Polymer Research 1/2024

01-01-2024 | Original Paper

The preparation of an ion-imprinted polymer based on hyperbranched polyamide-amines and epoxy resin and its efficient adsorption mechanism for Cr(VI) from aqueous solutions

Authors: Chen Xi, Yuzhuo Zhang, Fan Zhang

Published in: Journal of Polymer Research | Issue 1/2024

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Abstract

Cr(VI) is listed as the first category pollutant that needs strict control, posing a lasting risk to the environment and human body. Ion imprinting technology has attracted more and more researchers' attention due to its high selectivity. Here, a chromium(VI)-imprinted polymer (Cr(VI)-IIPs) was prepared by precipitation polymerization using potassium dichromate (K2Cr2O7) as the template ions, tert-butanol [C(CH3)3OH] as a pore-forming agent, Bisphenol A epoxy resins as the carrier, and hyperbranched polyamide-amines as curing and complexing agent. The research objective of this work is to crosslink epoxy resin as a matrix with hyperbranched polyamides to obtain ion imprinted materials with stable structure, acid and alkali resistance, low cost, and reusability. The detailed adsorption studies reveal that the adsorption behavior of the Cr(VI)-IIPs for Cr(VI) conforms to the quasi-second-order kinetic model and Langmuir adsorption isotherm model. At pH = 2 and 298K, the theoretical maximum adsorption capacity reached 263.15mg/g, reaching adsorption equilibrium within 120 min. Moreover, the adsorbent can be regenerated and the equilibrium adsorption amount will not decrease significantly. In addition, the column adsorption experiment shows that Cr(VI)-IIPs can be well applied to the treatment of actual wastewater.

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Appendix
Available only for authorised users
Literature
13.
go back to reference Li P, Damron JT, Veith GM, Bryantsev VS, Mahurin SM, Popovs I, Jansone-Popova S (2021) Bifunctional Ionic Covalent Organic Networks for Enhanced Simultaneous Removal of Chromium(VI) and Arsenic(V) Oxoanions via Synergetic Ion Exchange and Redox Process. Small 17:2104703. https://doi.org/10.1002/SMLL.202170241CrossRef Li P, Damron JT, Veith GM, Bryantsev VS, Mahurin SM, Popovs I, Jansone-Popova S (2021) Bifunctional Ionic Covalent Organic Networks for Enhanced Simultaneous Removal of Chromium(VI) and Arsenic(V) Oxoanions via Synergetic Ion Exchange and Redox Process. Small 17:2104703. https://​doi.​org/​10.​1002/​SMLL.​202170241CrossRef
Metadata
Title
The preparation of an ion-imprinted polymer based on hyperbranched polyamide-amines and epoxy resin and its efficient adsorption mechanism for Cr(VI) from aqueous solutions
Authors
Chen Xi
Yuzhuo Zhang
Fan Zhang
Publication date
01-01-2024
Publisher
Springer Netherlands
Published in
Journal of Polymer Research / Issue 1/2024
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-023-03864-7

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