Coal/clay nano composites of ratios 1:1, 1:4, 4:1 were successfully prepared and characterised by electron microscopy. They were then used to study kinetics and thermodynamics of removal from water of methyl orange of various concentrations, various pH and at various temperatures. The coal:clay ratios 1:1 and 4:1 performed equally but better than 1:4 and the individual coal and clay samples. The swelling in coal and in clay which occurs on initial adsorption appears to have been eliminated by the miniaturisation. The adsorption capacity of the composites was found to be higher than that of either the clay or the coal on their own but it is still lower than that of commercial activated carbon.

Keywords: Adsorption, Nano composite, Adsorption kinetics, Adsorption thermodynamics, Coal, Kaolinite

Projects

Currently no objects available

Currently no objects available