Open AccessDesign, synthesis, and study of Pd(II) ion‐imprinted functionalized polymer
Author(s) -
Nozari Mohammad,
Monier Mohammed,
Bashal Ali H.
Publication year - 2020
Publication title -
analytical science advances
Language(s) - English
Resource type - Journals
ISSN - 2628-5452
DOI - 10.1002/ansa.202000030
Subject(s) - triethoxysilane , isatin , schiff base , chemistry , metal ions in aqueous solution , extraction (chemistry) , silica gel , thiourea , inorganic chemistry , ionic bonding , polymer , polymer chemistry , metal , nuclear chemistry , materials science , ion , organic chemistry
Selective metal ions’ extraction and recovery has various applications in the analytical field. Metal ions need to be extracted, detected, and quantified. For that purpose, ion‐imprinted polymers have earned a great deal of attention during the past two decades. Pd 2+ ion‐imprinted hollow silica particles including an isatin Schiff base were prepared by Schiff base condensation of (3‐aminopropyl)triethoxysilane and isatin. The prepared Schiff base ligand was coordinated to the target Pd 2+ cations, the polymerizable Pd‐complex was set aside to form gel in the company of tetraethoxysilane and the target Pd 2+ cations were subsequently removed from the cross‐linked silica network by means of acidified thiourea solution. All materials throughout this synthesis process were investigated utilizing mass spectrometry, elemental analysis, FTIR, and 1 H‐NMR. The morphological structure of both Pd 2+ ion‐imprinted and non‐ion‐imprinted silica polymer were pictured by scanning electron microscopy. Several batches were studied exploiting both Pd 2+ ion‐imprinted and non‐ion‐imprinted silica polymer to test their functionality for selective extraction of Pd 2+ cations in multi‐ionic solution of Ni 2+ , Co 2+ , Cu 2+ , Mn 2+ , and Pd 2+ .