Microwave Actuated Ion Exchange Resins: Morphology and Effect of Polar and Non-Polar Groups on Metal Ion Uptake

作者：Shah Bhavna A^*; Shah Ajay V; Patel Nayan B; Shah Pathik M; Navik Alok J; Shah Hirva A

来源：Journal of Macromolecular Science Part A-Pure and Applied Chemistry, 2013, 50(2): 149-162.

DOI：10.1080/10601325.2013.741469

• Heavy metal
• chelating resin
• morphology
• metal ion uptake
• separation

Chelating resins, M-SFO, C-SFO, M-SFPh and C-SFPh, were synthesized by condensation polymerization of salicylic acid, formaldehyde and orcinol/phloroglucinol in 1:3:1 molar ratio in DMF media by conventional as well as the microwave method. The physico-chemical properties of the synthesized resins were determined. The chelating resins were characterized by FTIR and elemental analysis. The morphologies of the resins were examined by SEM and XRD analysis. Thermal stabilities of the synthesized resins were estimated by TGA. The metal ion uptake capacities of the synthesized resins were determined for Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II) with respect to pH of the media, metal ion concentration and contact time. The multiple functional groups present in chelating resins and difference in the method of synthesis demonstrate a significant influence on the extent of metal uptake. The clean separation of metal ions from Cu(II)-Pb(II) mixture on M-SFPh resin was achieved at optimized Kd values of metal ions.

• 出版日期2013-1-1