Adsorption Study Of Congo Red Dye On Activated Carbon Prepared From Iraqi Palm Leaves

Abstract

This research is conducted to study the Congo Red adsorption by activated carbon prepared from Iraqi palm leaves using ZnCl2 with a concentrations of 5,10 and 20% as an activator. The carbonization of sample was done at 450 °C for period of two hours and some properties such as specific surface area, ash content and moisture content were determined. Also, the ability of activated carbon for Congo Red ( Benzydine dye ) adsorption was investigated using concentrations levels of ( 600, 650, 700, 750, 800, 850, 900, 950 and 1000 ppm). The isotherm model was applied to estimate the adsorption quantity Qe and the adsorption percentage ( Qe %) for Congo Red dye adsorbed by activated carbon. The values of Langmuir constants (a and b) and Freundlich constants(n and KF) were calculated for adsorption isotherm. This study has been emphasized that activated carbon has a very high surface area and high adsorption capacity, low ash content and very low moisture content. These characteristics are candidate this product to be used in different application areas such as an industrial, environmental and many other fields.