This study examines the adsorption process of Ni2+ on bentonite, a clay material, as well as the effect of the composite prepared based on bentonite and natural polymer. The modified bentonite was thoroughly characterized using various analytical techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The results revealed significant improvements in mineralogical and surface structures compared with untreated bentonite. To study adsorption, variable nickel concentrations ranging from 200 to 4000 mg/L were tested. Experimental isotherm data were analyzed using Langmuir, Freundlich and Temkin models. The fits showed that the Freundlich model best described nickel adsorption on bentonite-biopolymers, with an adsorption capacity of 475 mg/g.
| Published in | Abstract Book of the 2024 International Conference on Education and Environment (ICEE2024) |
| Page(s) | 66-66 |
| Creative Commons |
This is an Open Access abstract, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2025. Published by Science Publishing Group |
Composite, Bentonite, Biopolymers, Adsorption, Heavy Metal and Nickel Removal
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