Evaluate the adsorption ability of crystal violet in water using synthesised zeolite X materials

Abstract

This article investigated the adsorption ability of synthetic zeolite X materials for the removal of crystal violet from water. The characteristics of the synthesised materials including characteristic bonds, crystalline structure and morphology; specific surface area and surface charge; and thermogravimetric were examined. The results confirmed that the material was successfully synthesised and exhibited the typical structure of zeolite X. Under the optimal conditions of the adsorption process such as pH 9, adsorption time of 2 hours and initial concentration of crystal violet of 15 mg/l, the synthesised material bead adsorbed crystal violet up to ~92% efficiency corresponding to a capacity of 6.9 mg/g. The study showed that the adsorption process of crystal violet by synthesised zeolite X has assumed second-order adsorption kinetics, adhered to the Langmuir isotherm adsorption model, and physical adsorption. Zeolite X material showed good reusability after heat treatment. The synthesised zeolite X material can effectively be used as an effective adsorbent for removing crystal violet from an aqueous environment.