Poly (polyethylene glycol diacrylate‐co‐allyl glycidyl ether) cryogels: Preparation, modification with iminodiacetic acid, and application of Cu(II) removal

Author:

Zhu Zhifei1,Li Junying2,Ma Feng12,Chen Guangxu1,Tian Haoran1,Li Jian3,Yang Pengfei2ORCID

Affiliation:

1. School of Environmental Science and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China

2. School of Chemistry and Chemical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China

3. Shandong Analysis and Test Center Qilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China

Abstract

AbstractIn this study, poly (polyethylene glycol diacrylate‐co‐allyl glycidyl ether) cryogels (p(PEGDA‐co‐AGE)) was synthesized by low‐temperature polymerization using polyethylene glycol diacrylate (PEGDA), allyl glycidyl ether (AGE), and N,N′‐methylenebisacrylamide (MBAAm). The cryogel was then modified with iminodiacetic acid (IDA) by a ring‐opening reaction of AGE to attach carboxyl groups on the surface. The modified cryogel (p(PEGDA‐co‐AGE)‐IDA) was characterized by scanning electron microscope, energy dispersive X‐ray spectra, infrared spectra, X‐ray photoelectron spectroscopy, and compression test, as well as its absorption performance. It was found that the adsorption efficiency and the reusability of cryogels for Cu(II) was related to pH, and the maximum adsorption capacity was 76.49 mg g−1 (pH = 6). In addition, the kinetics of Cu(II) adsorption on cryogels was investigated to clarify the adsorption mechanism.

Funder

Natural Science Foundation of Shandong Province

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films,General Chemistry

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