Abstract: In this paper, we report a facile co-precipitation method to synthesize a low-cost iron impregnated activated carbon (Fe-CAC) for phosphate removal from aqueous solution. The result shows that Fe-CAC has high phosphate adsorption capacity than pristine activated carbon (CAC). Both Fe-CAC and CAC adsorbents reached equilibrium at 9 h with the maximum phosphate adsorption capacity of 216.6 and 173.2 mg/g P, respectively. The adsorption capacity of phosphate onto Fe-CAC was high in acidic solution (216.6 mg/g at pH = 4), while decreased in alkaline solution (168.9 mg/g at pH = 12).