Add time:09/08/2019 Source:sciencedirect.com
Poly-o-toluidine zirconium(IV) ethylenediamine (PTZE) was synthesized to explore its behaviour towards nitrate sorption. The material was characterized by FTIR, XRD, TGA, DTA, SEM and TEM. The adsorption of nitrate onto PTZE was investigated in a batch system at 27 °C. The adsorption equilibrium data were fitted well to Freundlich isotherm model. A single-stage batch adsorption system was also designed from equilibrium data using Freundlich isotherm model. The thermodynamic parameters such as ΔG0, ΔH0 and ΔS0 for nitrate adsorption were calculated. The results showed that the adsorption process was spontaneous and endothermic in nature.
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