Author/Authors :
Itodo,، Adams Udoji نويسنده Department of Chemistry, Kebbi State University of Science and Technology, Aliero, NIGERIA , , Abdulrahman، Funke Wosilat نويسنده Department of Chemistry, University of Abuja, NIGERIA , , Hassan، Lawal Gusau نويسنده Department of Pure and Applied Chemistry, Usmanu Danfodiyo University, Sokoto, NIGERIA , , Maigandi، Shehu Ahmad نويسنده Faculty of Agriculture, Usmanu Danfodiyo University, Sokoto, NIGERIA , , Happiness، Ugbede Onojah نويسنده Department of Chemistry, Benue State University, Makurdi, NIGERIA ,
Abstract :
Phosphoric acid (H3PO4) and Zinc chloride (ZnCl2) catalyzed shea nut shells, subjected to a one way activation scheme was employed to study the adsorption kinetics and mode of diffusion of industrial dye uptake. Thermodynamics data obtained in this study indicate that
the sorption of dye spontaneously increases with time and decreases after equilibration was reached. The adsorption follows the pseudo second order kinetic model which gave the least % SSE (0.449-1.348), best linearity (R2=0.998-0.999) and closer agreement between the experimental and calculated qe values (qe exp., 96.985/qe cal., 100.00).Mode of transport deviate from the intraparticle diffusion model. According to this study, percent dye removal coupled with the close proximity of generated data to those reviewed in literatures, is an indication that shea nut shells could compare, to a good extent with commercial activated carbon for organic dye removal from dyestuff wastewater.
