Removal Of Contamination In Watwe With Molecular Imprinting Technique

The pollution of heavy metal ions and organic compound in drinkingr water are the main problems in feedwater treatment. This paper aimed to remove Cu(II) and aniline in water by molecular imprinting technique.Cu(II)-imprinted polymer (Cu(II)-MIPs) was synthesized by the emulsion polymerization approach, used oleic acid and propylene acyl amine respectively as functional monomer, and used divinylbenzene as cross-linker. The result showed that the Cu(II)-MIPs used oleic acid as functional monomer adsorbed Cu(II) in water with high velocity and capaticy, favorable selectivity, fine repetitive use. Scanning electron microsocope and Autosorb instrument were used to examine the properties and structure of the imprinted polymer. Adsrptive theory is copper ion enter into its cavity and replace hydrogen of hydroxyl of Cu(II)-MIPs. PH and Temperature of water influence performance of Cu(II)-MIPs, while PH was 7, it reached the maximum. The result showed that the Cu(II)-MIPs used propylene acyl amine as functional monomer adsorbed Cu(II) in water with low velocity and no favorable selectivity.Used oleic acid as functional monomer, Cu(II)-MIPs adsorbed Cu(II) in water used emulsion polymerization with the highest velocity and favorable selectivity, Cu(II)-MIPs used precipitation polymerization adsorbed Cu(II) with medium velocity and selectivity, Cu(II)-MIPs used exterior templet polymerization adsorbed Cu(II) with the lowest velocity, but the favorablest selectivity.Aniline-imprinted polymer (aniline-MIPs) was synthesized by exterior templet polymerization approach, used Cu(II), Mn(II), Zn(II) as chelation respectively. The result showed that the aniline-MIPs adsorbed aniline in water with medium capacity, but low velocity.