Effective Removal of Heavy Metal Ions Zn2+, Ni2+, Cu2+, Cr3+ from Aqueous Solution by Synthetic Superabsorbent Polymer

Heavy  metal  pollution  is  propagating  throughout  the  world  with  the  enlargement  of  industrial activities.  The  elimination  of  heavy  metal  ions  from  industrial  wastewaters  has  drawn  much attention  because  of  the  hazardous  effects  of  the  heavy  metal  ions  on  different  organisms. According to these facts, poly (2, 2, 3, 3- tetracyanocyclopropyl) phenyl acrylate (PTCP) with multi cyanocyclopropane functionalities in the pendant group were prepared by reacting benzoyl peroxide with p-(2,2,3,  3-tetracyanocyclopropyl)  phenylacrylate  (TCP) monomer.  (TCP)  monomer was synthesized by reacting cyanogen bromide and malononitrile with p-acryloyloxybenzaldehyde at 0 °C  in  a  short  time. The  synthesized  PTCP momopolymer were  examined  in heavy  metal  ions adsorption  such  as  Ni  (II),  Cu  (II),  Cr  (III)  and  Zn  (II)  under  competitive  and  non-competitive conditions in aqueous solutions at different pH. The high adsorption rate (<65 min) was seen. The synthesized polymer and its metal chelates were investigated by thermogravimetric analysis (TGA),Fourier-transform  infrared  spectroscopy  (FT-IR),  atomic  absorption  techniques  (AAS),  UV-vis spectroscopy and scanning electron microscopy (SEM).