Preparation of a novel polyacrylic acid and chitosan interpenetrating network hydrogel for removal of U() from aqueous solutions

A clean and simple method has been developed for preparation of interpenetrating polymer networks using polyacrylic acid (PAA) and chitosan (CS) for extraction of uranium from polluted water. The peak of Fourier transform infrared spectroscopy (FTIR) occurred at 928 cm −1 indicating combination of u...

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Published in:RSC advances 2018-04, Vol.8 (23), p.12684-12691
Main Authors: He, Jiarui, Sun, Fuliang, Han, Fuhao, Gu, Junjie, Ou, Minrui, Xu, Wenkai, Xu, Xiaoping
Format: Article
Language:English
Subjects:
Adsorption
Aqueous solutions
Chemistry
Chitosan
Crosslinking
Fourier transforms
Hydrogels
Interpenetrating networks
Polyacrylic acid
Uranium
Wastewater treatment
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cited_by cdi_FETCH-LOGICAL-c428t-371e24149039174549abd2d02687b11becb54cd40846ca7605c5fdfaa1cf7afc3
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container_title RSC advances
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creator He, Jiarui
Sun, Fuliang
Han, Fuhao
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description A clean and simple method has been developed for preparation of interpenetrating polymer networks using polyacrylic acid (PAA) and chitosan (CS) for extraction of uranium from polluted water. The peak of Fourier transform infrared spectroscopy (FTIR) occurred at 928 cm −1 indicating combination of uranium and PAA/CS. The energy dispersive X-ray (EDX) and the scanning electron microscope (SEM) studies illustrated the formation of a crosslinking structure and excellent binding ability of uranium on PAA/CS. The maximum adsorption capacity was 289.6 mg g −1 calculated using the equation of the Langmuir model. The adsorption capacity reached a plateau at pH 4 and the sorption process fits the pseudo-second-order model well. The PAA/CS composite has stability of reuse, with the adsorbent capacity decreasing slowly with increasing usage frequency. The experimental results confirm that the PAA/CS hydrogel could be a novel alternative for highly efficient removal of uranium from wastewater. A clean and simple method has been developed for preparation of interpenetrating polymer networks using polyacrylic acid (PAA) and chitosan (CS) for extraction of uranium from polluted water.
doi_str_mv 10.1039/c7ra13065a
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subjects Adsorption
Aqueous solutions
Chemistry
Chitosan
Crosslinking
Fourier transforms
Hydrogels
Interpenetrating networks
Polyacrylic acid
Uranium
Wastewater treatment
title Preparation of a novel polyacrylic acid and chitosan interpenetrating network hydrogel for removal of U() from aqueous solutions
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