Abstract

Sudha Thotakura¹, Anantha Lakshmi Vadivelu¹, Sivaji Maganti¹, Rama Murthy Duvvuri² and Suryakala Duvvuri^1*

DOI : http://dx.doi.org/10.13005/ojc/390628

Rare earth elements (REEs) have versatile applications in various industries and are thrown as industrial waste waters, which leads to serious environmental issues. This paper describes the adsorption efficiency of nano copper ferrite on REEs namely lanthanum and cerium in their trivalent states at room temperature and at the optimum conditions of pH, contact time, adsorbent, adsorbate dosage, temperature etc. The batch adsorption studies were conducted for the adsorption studies using ICPAES (Inductive coupled plasma atomic emission spectro photometer). In addition the data is studied for Langmuir and Freundlich models and observed that data well fitted to Langmuir monolayer adsorption. From the graph and intercept values of theoretical and experimental values, the pseudo second order kinetics are followed. Thermodynamic parameters reveal that reaction is spontaneous and endothermic . From the over all observations like fast kinetics, chemical stability, high adsorption capacity it is concluded that nano CuFe2O4 has maximum efficiency for the adsorption of REEs.

Adsorption; Langmuir Adsorption Isotherms; Nano Spinel Copper Ferrite; Trivalent Rare Earth Elements; Thermodynamic Parameters

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