Again, the observed morphology of TK resembles that of zeolite LTA (Kugbe et al., 2009), consistent with the findings by XRD and FT-IR. Hence, it is rational to conclude that kaolin has been successfully transformed into zeolite LTA after NaOH activation treatment of calcined kaolin. That is, transformed kaolin (TK) catalyst used in this work is zeolite LTA in dehydrated form.