Magnetic cellulose composite for cyanide adsorption from water

Abstract

In this study, Aluminium doped mesoporous magnetic cellulose (AMMC) was synthesized by coprecipitation method. The prepared adsorbent has been utilized for the adsorption of cyanide. The characteristics changes in the structural specifics of the adsorbent have been analyzed by techniques like FTIR, SEM, EDX, XRD, BET, VSM and TGA-DTA. The magnetic behavior of material contributes in easy handling during its utilization in the adsorption process. Adsorption studies were carried out at 8.0 pH with 0.1g of adsorbent through batch adsorption process. Isotherm studies revealed that adsorption of cyanide on AMMC proceeds through monolayer phenomenon with adsorption capacity of 34.46 mg/g. Adsorption kinetics of the process explained through pseudo second order model. Adsorption of cyanide shows spontaneity with enthalpy driven process. Effect of interfering anions on adsorption were studied. Large amount of cyanide containing water samples can be treated with AMMC through column adsorption method. Regeneration of the material and number of adsorption-desorption cycles proven that the adsorption of cyanide through AMMC was an ecofriendly process.