Predominant hosting lead(II) in ternary mixtures of heavy metal ions by a novel of diethylaminomethyl-calix[4]resorcinarene
作者： N. N. M. Yusof , Y. Kikuchi , T. Kobayashi
DOI: 10.1007/S13762-013-0298-9
关键词:
摘要: Heavy metal ions from single and ternary systems of Pb(II), Cu(II), Ni(II) adsorbed by calix[4]resorcinarenes in water–chloroform extraction were studied. Comparison was made calix[4]resorcinarenes, 2,8,14,20-tetraundecyl calix[4]resorcinarene-4,6,10,12,16,18,22,24-octol, diethylaminomethyl-calix[4]resorcinarene, 5,11,17,23-tetra(diethylaminomethyl)-2,8,14,20- tetraundecylcalix[4]resorcinarene-4,6,10,12,16,18,22,24-octol, for predominant their the mixture aqueous solution at different pH a water layer. The hosting Pb(II) diethylaminomethyl-calix[4]resorcinarene occurred efficiently 6–7. applied to Langmuir isotherm. Adsorption studied using nuclear magnetic resonance spectroscopy water–deuterium chloroform system. Results showed that as heavy included into host cavity, observation shifted peaks molecules downfield higher field visible spectra, meaning with ion cavity. spectra also diethylamino group expressed formation coordination complex between purpose Pb(II).
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