Ion-imprinted polymethacrylic microbeads as new sorbent for preconcentration and speciation of mercury

Simple synthesis of highly selective and fast Hg(II) removal polymer from aqueous solution

“…The same finding has been reported earlier. [19,20] The 4-ATP was dissolved in ethanol and then Hg (II) salt was added slowly and allowed to further reaction for 2 h with stirring. Formed complex (Hg (II)-ATP) was filtered and washed with water, ethanol, and acetone and then dried in vacuum desiccators.…”

“…5,7-dichloroquinoline-8-ol is another compound that has been used for complexing many ion templates in ion-imprinted polymers. [15][16][17][18][19][20] Although these compounds increase the selectivity in ion-imprinted polymers, as they do not involve the polymerizable group, they cannot be copolymerized with the functional monomers and will be physically trapped into the bulk of polymer after removing the template that can cause thermal instabilities and they will decompose before thermal decomposition of polymer. Since heavy metals in general and mercury in particular show very great affinity to sulfur, the functional monomers containing the sulfhydryl group can produce a good stable complex with mercury.…”

Synthesis and Characterization of Nanopore MoVI-Imprinted Polymer and Its Application as Solid Phase for Extraction, Separation and Preconcentration of Molybdenum Ions from Water Samples

“…[11][12][13] The selectivity of an ion imprinted polymer is based on the metal ion interaction with a specific ligand, coordination geometry, metal ion coordination number, charge and size. [14][15][16][17] There are some reports on the nanopore IIP preparation and their applications as the solid phase extraction (SPE) sorbent for the preconcentration of the analytes present in trace amounts or their separation from other coexisting species in complex matrix. [18][19][20] Mo VI oxy ion imprinted particle was prepared firstly by the surface metal ion imprinting technique with a sol-gel process on the surface of amino-silica by Ren et al 21 They used Mo VI oxy ion-imprinted as an adsorbent for preconcentration and separation of Mo VI trace amounts from the water samples.…”

Synthesis of bulk ion-imprinted polymers (IIPs) embedded with oleic acid coated Fe₃O₄ for selective extraction of hexavalent uranium

“…The description is very similar to the 'lock and key' analogy used to explain the action of enzymes, the molecules responsible for hastening and directing biochemical reactions (Murray et al, 1997). The selectivity of an ion-imprinted polymer (IIP) adsorbent is based on the specificity of the ligand concerning the coordination geometry, coordination number, charge and size of ions (Dakova et al, 2009). In addition to being simple and convenient to prepare, IIPs have outstanding advantages, such as predetermined selectivity, and have shown considerable promise as materials capable of ionic species recognition.…”