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Polymers 2019, 11(3), 502;

Bentonite Modified by Allylamine Polymer for Adsorption of Amido Black 10B

Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan 250022, China
Shandong Labor Vocational and Technical College, Jinan 250022, China
School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, University of Jinan, Jinan 250022, China
Author to whom correspondence should be addressed.
Received: 30 December 2018 / Revised: 5 March 2019 / Accepted: 6 March 2019 / Published: 15 March 2019
(This article belongs to the Special Issue Polymer Adsorption at Interfaces)
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The main object of this work is to remove Amido black 10B using a new type of bentonite-based adsorbent with cationic groups by the modification of polyallyl amines between the interlayers of bentonite. Fourier transform infrared, X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy were used to characterize the functionalized bentonite. A series of batch adsorption experiments were performed. The maximum adsorption amount was 144.08 mg g−1 when the pH was 2 and the contact time was 120 min. In addition, the equilibrium isotherm data were analyzed using Langmuir and Freundlich isotherm models, while only the Langmuir model could provide a high correlation. Therefore, this study provided a new functionalized bentonite as a low-cost adsorbent for dye removal from water. View Full-Text
Keywords: bentonite; adsorbent; polyallyl amines; Amido black 10B bentonite; adsorbent; polyallyl amines; Amido black 10B

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Guo, W.; Xia, T.; Pei, M.; Du, Y.; Wang, L. Bentonite Modified by Allylamine Polymer for Adsorption of Amido Black 10B. Polymers 2019, 11, 502.

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