Synthesis of PAN/ferrocyanide composite incorporated with cetrimonium bromide and its employment as a bifunctional adsorbent for coremoval of Cs + and HCrO 4 − from aqueous solutions

Polyacrylonitrile/ferrocyanide composite incorporated with cetrimonium bromide (PFICB) was synthesized and evaluated as a novel bifunctional adsorbent for coremoval of Cs + and HCrO 4 − . Results of the reaction time effect showed that adsorption of Cs + and HCrO 4 − onto PFICB were rapid processes. The effect of the solution pH in the range 2.5–10 revealed that PFICB had the ability to simultaneously remove Cs + and HCrO 4 − . The maximum adsorption capacity of PFICB was found to be 41.79 mg/g for Cs + and 19.39 mg/g for HCrO 4 − . These values were compared with those reported in literature using other adsorbents.