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  • Title: [Adsorption of perchlorate by calcined Mg/Zn/Al layered double hydroxides].
    Author: Wang HY, Liu Y.
    Journal: Huan Jing Ke Xue; 2014 Jul; 35(7):2585-9. PubMed ID: 25244841.
    Abstract:
    The adsorption capacity of perchlorate by Mg/Zn/Al layered double hydroxides was investigated. The samples were characterized by X-ray diffraction (XRD) and the adsorption isothermal model and dynamic model were discussed. The effect of calcination temperature, Mg/Zn/Al molar ratio, pH value of solution, adsorption time and dosage on the adsorption capacity of samples were studied. The experiment results showed that the removal ratio and adsorption capacity reached the highest and the pH value had good applicability when the molar ratio was Mg/Zn/Al = 2: 1 : 1. The adsorption of perchlorate basically conformed to the pseudo-second kinetics and Langmuir, Freundlich isotherm model.
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