Preparation, characterization of cellulose-grafted with calix[4]arene polymers for the adsorption of heavy metals and dichromate anions

Tabakcı, Mustafa; Erdemir, Serkan; Yılmaz, Mustafa

doi:10.1016/j.jhazmat.2007.02.057

Cited by 52 publications

(33 citation statements)

References 24 publications

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“…It is also cheap and can be applied at low concentration of metal ions 3 . A number of natural and synthetic adsorbents have been applied in the removal of heavy metal ions such as zeolite 4 , humic acid 5 , modified chitosan [6][7][8] , biosorbent 9 and calixarene [10][11] .…”

Section: Introductionmentioning

confidence: 99%

Adsorption Study of Pb(II), Cd(II), Cu(II) and Cr(III) ions in Aqueous Medium using C-4-Hydroxy-3-methoxyphenylcalix[4]resorcinarene Dodecaacetate

Anwar¹,

Jumina²,

Siswanta³

et al. 2017

Orient. J. Chem

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This research work presented the application of C-4-hydroxy-3-methoxyphenylcalix [4] resorcinarenedodecaacetate in the removal of Pb(II), Cd(II), Cu(II) and Cr(III) in aqueous medium. Various adsorption parameter such as pH, adsorbent dose and interaction time were investigated. In addition, the kinetic study was conducted by using Santosa's first order, Lagergren's pseudo-first order and Ho's pseudo-second order models. The results showed that the optimum pH for the sorption of Pb(II) and Cu(II) was 4 and that for Cd(II) and Cr(III) was 5. The optimum adsorbent dosage was 0.0175 g for all the metal ions. While the adsorption kinetic for Cd(II), Cu(II) and Cr(III) was relatively fast, the adsorption of Pb(II) occurred in slower rate. Therefore, the kinetic study be solely performed for the adsorption of Pb(II). The adsorption of Pb(II) followed the pseudo-second order of Ho with the equilibrium adsorption capacity and rate constant of 0.3936 mg/g and 0.0865 g/mg.min. respectively. From this study, C-4-hydroxy-3-methoxyphenylcalix[4]resorcinarenedodecaacetate was expected to become an alternative adsorbent in the removal of heavy metals.

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Section: Introductionmentioning

confidence: 99%

Adsorption Study of Pb(II), Cd(II), Cu(II) and Cr(III) ions in Aqueous Medium using C-4-Hydroxy-3-methoxyphenylcalix[4]resorcinarene Dodecaacetate

Anwar¹,

Jumina²,

Siswanta³

et al. 2017

Orient. J. Chem

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“…Various adsorbent has been reported in the removal of heavy metal ions. For instance, activated carbon 8 , zeolite 9 , polymer 10 , biosorbent 11 and macrocycle [12][13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

Adsorption Study of Pb(II), Cd(II), Hg(II) And Cr(III) Onto Calix[4]Resorcinarene Derivative

Anwar¹,

Jumina²,

Siswanta³

et al. 2016

Orient. J. Chem

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In this study, the removal of several heavy metal ions of Pb(II), Cd(II), Hg(II) and Cr(III) from aqueous medium via sorption process onto calix[4]resorcinarene derivative was investigated. The used adsorbent was highly oxygenated calix[4]resorcinarene namely C-4-hydroxyphenylcalix [4] resorcinarene. Several adsorption parameters were studied including pH, adsorbent dosage, interaction time as well as the kinetic studies. While the maximum removals of Pb(II), Cd(II) and Hg(II) were observed in pH 5, the removal of Cr(III) reached the maximum value at pH 6. The optimum adsorbent dosages for Pb(II), Hg(II) and Cr(III) were 0.025 g, whereas that for Cd(II) was 0.05 g. The kinetic data were evaluated by using three kinetic models of first order model of Santosa, pseudofirst order of Lagergren and pseudo-second order of Ho. The results showed that the adsorption of these metal ions could be well described with Ho's pseudo-first order model. Keyword: Calix[4]resorcinarene derivative, adsorption and heavy metal ions.

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“…Calix [4]arenes work this way through their coordination ability towards metallic elements for which a significant body of literature now exists, describing heavy metal removal in which the majority of reports propose binding of metal cations with the OH groups as well as encapsulation by the benzene cavity. [10][11][12] The introduction of S atom into calixarenes results in the synthesis of thiacalixarene which provides new modes of coordination and results in the design of new molecular networks as koilates. [13][14][15][16][17] the formation of thiacalixarene tetrasulfonate (TCAS) which can further increase its hydrophilicity and sorption capacity.…”

mentioning

confidence: 99%

Efficient removal of heavy metal ions using hydrophilic thiacalix[4]arene doped polyaniline prepared by emulsion polymerization: conductivity, isotherm and kinetic study

Norouzian

Lakouraj

2015

Polym. Adv. Technol.

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Efficient removal of heavy metal ions using hydrophilic thiacalix [4]arene doped polyaniline prepared by emulsion polymerization: conductivity, isotherm and kinetic study Rafieh-Sadat Norouzian and Moslem M. Lakouraj* The adsorption capacity of conductive polyaniline doped by thiacalix [4]arene tetrasulfonate (PANI-TCAS) towards Cu(II), Cd(II), Co(II) and Cr(III) was investigated through batch adsorption techniques, and the extent of adsorption was measured as a function of pH, initial metal ion concentration and contact time. It was found that the metal ion removal reached maximum at pH 8.0 and remained constant after 60 min. Experimental data was fitted to Langmuir, Freundlich, Redlich-Peterson and Temkin equation models with the maximum adsorption capacity calculated to be 833.3, 555.5, 526.3 and 500 for Cr 3+ , Cu 2+, Co 2+ and Cd 2+ , respectively, from the Langmuir isotherm model. The kinetic study was carried out through pseudo-first-order, pseudo-second-order, Elovich kinetic and intraparticle diffusion models in which the related correlation coefficient for each kinetic model showed that the pseudo-second-order rate equation was better described by the adsorption process. XRD spectra, SEM and TEM images of the adsorbent revealed a homogeneous distribution of nano-sized particle structure with a porous surface, the morphology of which brings about high adsorption capacity for the PANI-TCAS molecular nanocomposite which in turn was observed by the AFM micrograph. The conductivity of thiacalix [4]arene tetrasulfonate doped polyaniline after metal ion adsorption was also assessed, and the four-probe measurement technique revealed conductivity increment as high as 102. INTRODUCTIONBreak-neck industrial growth in newly industrialized countries as well as increasing output in emerging markets has accelerated the release of heavy metals consisting of transition metals, group (IIIA), (IVA) and (VA) metal cations into the environment through aqueous waste streams from activities such as metal finishing, welding, mining, fertilizer and paper industries, tanning, etc… contaminated with high concentrations of toxic and nonbiodegradable heavy metal ions. [1,2] The accumulation of heavy metal ions poses significant risk to human health through the food chain even at low concentrations; thus a wide range of waste-treatment technologies such as chemical precipitation, ion-exchange, adsorption, membrane filtration, electrochemical technique and solvent extraction have been employed to remove such pollutants, each with their inherent advantages and limitations. [3,4] The adsorption method is widely considered effective and frequently utilized, which owes its popularity to the simplicity and easy operational conditions though the choice of adsorbent regarding their reactive functional groups has a significant impact on sorption behavior and dominates the sorption mechanism. Ionic functional groups of adsorbents like carboxyl, phosphonic and sulphonic acid groups remove adsorbates through ion-exchange, while those contai...

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Preparation, characterization of cellulose-grafted with calix[4]arene polymers for the adsorption of heavy metals and dichromate anions

Cited by 52 publications

References 24 publications

Adsorption Study of Pb(II), Cd(II), Cu(II) and Cr(III) ions in Aqueous Medium using C-4-Hydroxy-3-methoxyphenylcalix[4]resorcinarene Dodecaacetate

Adsorption Study of Pb(II), Cd(II), Cu(II) and Cr(III) ions in Aqueous Medium using C-4-Hydroxy-3-methoxyphenylcalix[4]resorcinarene Dodecaacetate

Adsorption Study of Pb(II), Cd(II), Hg(II) And Cr(III) Onto Calix[4]Resorcinarene Derivative

Efficient removal of heavy metal ions using hydrophilic thiacalix[4]arene doped polyaniline prepared by emulsion polymerization: conductivity, isotherm and kinetic study

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