2008
DOI: 10.1002/clen.200800065
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Application of a Newly Synthesized Calixarene in Metal Ions Extraction

Abstract: A new ligand, 25,27-bis (3-(49-biphenyl-4-hydroxy carboxylic acid) propoxy) -26,28-dihydroxy-5,11,17-tetra(tert-butyl) ). Under the adopted conditions, both sorbents exhibited highest selectivity toward Ag + (70% for Cax-SG and 85% CBiPh-SG), followed by Hg 2+ (60% for Cax-SG and 65% CBiPh-SG) while the other metal ions were negligibly extracted (a 20%).

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Cited by 7 publications
(8 citation statements)
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“…A number of sorbents, such as amberlite XAD [13], amberlite XAD-2-functionalized with 2-(2 I -benzothiazolylazo)-p-cresol (BTAC-XAD) [18], organically modified clay [19], modified silica gel [20][21][22][23], polyethylenimine methylenephosphonic acid (PEIMPA) [24], and calixarenes [25,26], have been used as solid-phase extraction materials. Among these, silica gel, especially when modified with different metal-chelating organic compounds and microorganisms [27][28][29][30][31], has received great attention due to a number of advantages, such as good mechanical and thermal stability, selectivity, no swelling, and easy regeneration [32].…”
Section: Introductionmentioning
confidence: 99%
“…A number of sorbents, such as amberlite XAD [13], amberlite XAD-2-functionalized with 2-(2 I -benzothiazolylazo)-p-cresol (BTAC-XAD) [18], organically modified clay [19], modified silica gel [20][21][22][23], polyethylenimine methylenephosphonic acid (PEIMPA) [24], and calixarenes [25,26], have been used as solid-phase extraction materials. Among these, silica gel, especially when modified with different metal-chelating organic compounds and microorganisms [27][28][29][30][31], has received great attention due to a number of advantages, such as good mechanical and thermal stability, selectivity, no swelling, and easy regeneration [32].…”
Section: Introductionmentioning
confidence: 99%
“…The selective resin reduces the residual concentration of heavy metals so that the risk of toxicity gets minimized [7][8][9][10][11]. A number of modified ion-exchange resins have been prepared for the removal of heavy metals from wastewater [12][13][14][15]. In our laboratory, a variety of chelate forming resins have been modified using complexing agents such as titen yellow, alizarin red-S, congo red, erichrome black T, phthalic acid, and gallic acid [16][17][18][19][20][21][22][23][24][25].…”
Section: Introductionmentioning
confidence: 99%
“…Cellulose Acetate Membrane Filters pH is a very important factor for the quantitative recovery of nickel(II) in separation-preconcentration studies [40][41][42][43]. The effect of pH on the recovery of nickel(II), as 8-hydroxyquinoline chelates, on a cellulose acetate membrane filter was investigated in the pH range from 4.0-8.0.…”
Section: Effect Of Ph On the Recovery Of Nickel(ii) Onmentioning
confidence: 99%