Etude de la microstructure des pétioles activés et non activés des palmiers dattier

Abstract

Lignocellulosic residues can be valued in the treatment of wastewater as clean, natural and low cost adsorbents. In the present study, our approach consists in developing the preparation and the characterization by physicochemical methods, of an adsorbent material, from the petioles of date palms. The preparation of the adsorbent material includes sieving, followed by chemical treatment with formaldehyde. The chemical modification, which serves to improve the adsorption capacity of the material, is verified using means of analysis : the Fourier Transform Infra Red (FTIR), the X-Ray Diffraction (XRD) and the measurement of specific surfaces. The chemical modification of the lignocellulosic material has caused the appearance of a new microstructure, particularly in the case of 100% methylation for 24 hours in order to increase its potential adsorption capacity.