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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >Microwave actuated ion exchange resins: Morphology and effect of polar and non-polar groups on metal ion uptake
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Microwave actuated ion exchange resins: Morphology and effect of polar and non-polar groups on metal ion uptake

机译：微波驱动离子交换树脂：极性和非极性基团的形态和对金属离子吸收的影响

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摘要

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 K_d values of metal ions.
机译：螯合树脂M-SFO，C-SFO，M-SFPh和C-SFPh是通过水杨酸，甲醛和生物素/间苯三酚在DMF介质中以常规方式以及常规方式在1：3：1的条件下进行缩聚而合成的。微波法。测定了合成树脂的理化性质。通过FTIR和元素分析对螯合树脂进行了表征。通过SEM和XRD分析检查树脂的形态。通过TGA估计合成树脂的热稳定性。相对于介质的pH，金属离子浓度和接触时间，确定了合成树脂对Ni（II），Cu（II），Zn（II），Cd（II）和Pb（II）的金属离子吸收能力。螯合树脂中存在的多个官能团以及合成方法的差异显示出对金属吸收程度的显着影响。在优化的金属离子K_d值下，在M-SFPh树脂上从Cu（II）-Pb（II）混合物中干净分离出金属离子。

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