Comparative Study of the Adsorption of Lead and Cadmium by Activated Carbon from Jatropha curcas and Moringa Husk

Moringa husks and Jatropha cacus were evaluated using decoloration of methylene blue for the removal of lead (Pb) and cadmium (Cd) from water sample. The results showed that Moringa has better properties: physicochemical properties: pH, moisture content (%), ash content (%), carbon content (%), volatile matter (%), surface area (m2/g), electrical conductivity (µs/cm), bulk and density (g/L), 6.4, 14, 4, 63.26, 10, 787, 867 and 400 respectively, decoloration of methylene blue at 10 to 90 minutes ranges from 11 to 87% , Pb and Cd adsorption capacity 55.7 and 86, % degradation 85 and 92 than the Jatropha cacus 50.2 and 55.2, 78 and 83 respectively. The Moringa husk was characterized using Fourier Transform Infrared (FTIR), Scanning Electron Microscope (SEM) and its adsorption properties were studied by Langmuir and Freundlich kinetic isotherms.