Synthesis and evaluation of the Cr(VI) extraction ability of amino/nitrile calix[4]arenes immobilized onto a polymeric backbone

Memon, Shahabuddin; Tabakcı, Mustafa; Roundhill, D. Max; Yılmaz, Mustafa

doi:10.1016/j.reactfunctpolym.2006.03.017

Cited by 67 publications

(58 citation statements)

References 31 publications

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“…dichromate and arsenate) [46,88] to calixarene-based sorbents. In this kind of interactions, the presence of functional groups capable of forming hydrogen-bonds (such as amine, amide and protonated imine as well as nitrile groups) in the calixarene structure are deemed important [50,89]. Thus, binding mechanism of ionic species to calixarene-based sorbents/stationary phases can follow different pathways depending on the chemistry of analyte and the calixarene immobilized to the support.…”

Section: Interaction Mechanismsmentioning

confidence: 99%

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Calixarene-engineered surfaces and separation science

Gezici

Bayrakcı

2015

J Incl Phenom Macrocycl Chem

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After their discovery, calixarenes have attracted the attention of many researchers from various disciplines. This group of supramolecules has an increasing popularity and this is most probably related with the flexibility of calixarene chemistry. Owing to their multifunctional character and stability, calixarenes became important precursors in separation science to derive new-type of sorbents or stationary phases. Immobilization of calixarenes to a suitable solid support (e.g. silica, synthetic polymers, magnetite nanoparticles, etc.) is a very popular concept being used for this purpose, and various immobilization methodologies have been proposed in the literature. In the present work, some state-of-the-art researches and developments published in the past are reviewed in a collective manner, and thus fundamentals of calixareneimmobilization and the application of the obtained materials in sorption and high performance liquid chromatography are represented.

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Section: Interaction Mechanismsmentioning

confidence: 99%

“…Notestein et al [89] reported important findings about the interactions of calixarene-immobilized stationary phases with aromatic compounds. As reported by the researchers, calixarenes bind small aromatic compounds over 1:1 stoichiometry, and calixarene upper-rim composition was found to have role in binding.…”

Section: Interaction Mechanismsmentioning

confidence: 99%

Calixarene-engineered surfaces and separation science

Gezici

Bayrakcı

2015

J Incl Phenom Macrocycl Chem

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“…3) and anions ( Fig. 3) [59][60][61][62][63][64][65] shows an increase in the ability of calixarene derivatives in solvent extraction of alkaline earth metal cations [66][67][68][69][70][71][72][73][74][75][76][77], transition metal ions [78][79][80][81][82][83][84][85][86][87][88][89][90], molecular compounds [91][92][93][94][95][96][97][98][99][100][101][102][103][104][105] and anions [106][107][108].…”

Section: Introductionmentioning

confidence: 99%

Applications of Nano-Baskets of Calixarenes in Chromatography

2011

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Nano-baskets of calixarenes have been subject to extensive research in the construction of liquid chromatographic phases, extractants, transporters, electrode ionophores, and optical and electrochemical sensors over the past 4 decades. There has long been interest in calixarene-based liquid chromatographic phases. Owing to the recent rapid growth in the number of publications on calixarene-based liquid chromatographic phases, this review paper focuses on their different applications in the main fields of molecular and ionic species as well as liquid chromatographic mobile and stationary phases. Although the recent reports have focused on the optimization and application of one kind or a unique group of calixarenic mobile or stationary phases, this review is a collection and comparison of a variety of research data dealing with the synthesis, preparation and behavior of calixarene-based liquid chromatographic phases.

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“…For such a molecule to be effective as a host it is necessary that its structural features are compatible with those of the guest anion. The chromate and dichromate (CrO 4 2-and Cr 2 O 7 2-) ions are dianions with oxide functionalities at their periphery. Since the metal center does not bind to additional ligands there is no advantage in designing a host that can act as a complexant to it.…”

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Immobilization of novel the semicarbazone derivatives of calix[4]arene onto magnetite nanoparticles for removal of Cr(VI) ion

Akoz

Erdemir

2011

J Incl Phenom Macrocycl Chem

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A series of novel the semicarbazone derivatives of calix [4]arene have been synthesized and then immobilized onto amino functionalized magnetic nanoparticles. Magnetic Fe 3 O 4 nanoparticles were prepared by the chemical co-precipitation of Fe(III) and Fe(II) ions and the nanoparticles were modified directly by 3-aminopropyltriethoxy silane (APTES) to introduce reactive amine groups onto the particles' surface. The characterization of the prepared compounds was made by FT-IR, elemental analysis, TGA/DTG and NMR techniques. The sorption properties of the new calix[4]arene based magnetic sorbents toward Cr(VI) ion were also studied. The results showed that the prepared magnetic nanoparticles were effective sorbents for the removal of Cr(VI) ion. Also, Langmuir and Freundlich isotherm models were applied for Cr(VI) ion sorption by using MN-C2 and it was found that the experimental data confirmed to Langmiur isotherm model.

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Synthesis and evaluation of the Cr(VI) extraction ability of amino/nitrile calix[4]arenes immobilized onto a polymeric backbone

Cited by 67 publications

References 31 publications

Calixarene-engineered surfaces and separation science

Calixarene-engineered surfaces and separation science

Applications of Nano-Baskets of Calixarenes in Chromatography

Immobilization of novel the semicarbazone derivatives of calix[4]arene onto magnetite nanoparticles for removal of Cr(VI) ion

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