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Abstract A Moroccan bentonite was activated by sodium carbonate (Na–Be), and by a combined chemical and thermal activation (Na–Be450). The materials characterization was performed by XRD, EDS, FTIR, SEM and… Click to show full abstract
Abstract A Moroccan bentonite was activated by sodium carbonate (Na–Be), and by a combined chemical and thermal activation (Na–Be450). The materials characterization was performed by XRD, EDS, FTIR, SEM and porosity measurements. The efficiency of Na–Be and Na–Be450 as low-cost adsorbents to remove nickel and silver from aqueous solution was checked. The Langmuir, Freundlich and Langmuir-Freundlich models were used for the analysis of equilibrium isotherms. Na–Be and Na–Be450 demonstrated a good removal efficiency towards nickel and silver, even in complex effluents (industrials wastewaters). The regeneration study proved that Na–Be450 presented all the characteristics of an efficient material for nickel removal.
Journal Title: Groundwater for Sustainable Development
Year Published: 2021
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