Abstract: Lead is naturally occurring toxic metal found in the Earth’s crust. Its widespread use has resulted in extensive environmental contamination, human exposure and significant public health problems. In this research, adsorption studies were carried out for the removal of Pb2+ from aqueous solution. The carbons were activated using 40% Phosphoric acid. It was characterized using BET, SEM and FTIR methods of characterization. The BET analysis was used to determine the surface area which was gotten to be 1383 m2/g. The surface area of the chemically activated carbon from the SEM image is found to consist of highly packed bundles of deep long cylindrical pores and some pits indicating the good adsorptive capacity. The peaks obtained from the FT-IR analysis are O-H band, C-H stretch and nitrile triple (HC≡N) bond. Equilibrium adsorption data were modeled using Langmuir, Freundlich, Redlich-Peterson and Elovich models, Langmuir model fitted more compared to other models. Adsorption kinetic data were tested using pseudo-first order and pseudo-second order, the adsorption followed the pseudo-second order mechanism with a correlation coefficient (R2) of 0.9999.
Keywords: Adsorption; Lead; Pineapple peel; Isotherm; Kinetics.
Title: ISOTHERM AND KINETICS STUDIES OF ADSORPTIVE REMOVAL OF LEAD FROM AQEOUS SOLUTION BY ACTIVATED CARBON FROM PINEAPPLE PEEL
Author: Ibrahim Muhammad, Abdu Muhammad Bello, Balarabe Sarki Sagagi
International Journal of Mathematics and Physical Sciences Research
ISSN 2348-5736 (Online)
Vol. 11, Issue 1, April 2023 - September 2023
Page No: 75-86
Research Publish Journals
Website: www.researchpublish.com
Published Date: 03-August-2023
