An efficient and health-friendly adsorbent N-[4-morpholinecarboximidamidoyl]carboximidamidoylmethylated polyphenylene sulfide for removing heavy metal ions from water

摘要

N-[4-morpholinecarboximidamidoylIcarboximidamidoylmethylated polyphenylene sulfide (MCMPPS) was synthesized by grafting moroxydine on cholomethylated polyphenylene sulfide (CMPPS) resin for removing heavy metal ions from water. Polyphenylene sulfide (PPS) is a health-friendly polymer, moreover, the moroxydine is an antiviral drug. The resin MCMPPS exhibited excellent chemical stability under strong acid, basic and oxidative conditions. The maximum adsorption capacity of resin MCMPPS for Pb(II), Cd(II), Cr(lll), Cu(II) and Ni(II) ions were 186.92, 189.75, 120.04, 119.33 and 134.05 mg g(-1), respectively, moreover, equilibrium time of MCMPPS adsorbing Pb(II), Cr(III), Cu(II) and Cd(II) ions are about 30 min. Therefore, this new sorbent showed a potential application in the removal of heavy metal ions in water owing to its thermal and chemical stability, healthy safety, and efficient adsorption. The FTIR spectra and EA data suggested that heavy metal ions were quickly and effective adsorbed on surfaces of the adsorbent by coordination reaction of heavy metal ions with amino and imino groups. (C) 2019 Elsevier B.V. All rights reserved.