EQUILIBRIUM, KINETIC AND THERMODYNAMIC STUDIES FOR ADSORPTION OF PHOSPHATE FROM AQUEOUS SOLUTION USING NANOPARATICLES ZnO

Abstract

In this study, ZnO nanoparticles made by hydrothermal method for adsorption of phosphate from water
The adsorption of phosphate on ZnO nanomaterials follows the isothermal adsorption models
Langmuir, Tempkin and Freundlich, single-layer adsorption, in the condition of heterogeneous
material surface, there is weak interaction between adsorbent and adsorbents. According to the
isothermal adsorption model, Langmuir has determined the maximum adsorption capacity of 769.23
(mg g). Phosphate adsorption of ZnO nanomaterials follows Lagergren's apparent second-order kinetic
model, spontaneous and exothermic.
Keywords: Nanoparticles ZnO, equilibrium, kinetic and thermodynamic, phosphate, Aqueous solution.