Synthesis and application of ion-imprinted polymer for extraction and pre-concentration of iron ions in environmental water and food samples

Roushani, Mahmoud; Beygi, Tahereh Musa; Saedi, Zahra

doi:10.1016/j.saa.2015.09.029

Cited by 40 publications

(19 citation statements)

References 18 publications

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“…Numerous studies on IIPs and their application for selective preconcentration and separation of ferrous [17] and ferric [18][19][20][21][22] ions mostly from water samples have been also reported. According to authors' knowledge, IIPs have never been used for Fe(II)/Fe(III) speciation in any samples.…”

Section: Introductionmentioning

confidence: 99%

Iron(II) ion imprinted polymer for Fe(II)/Fe(III) speciation in wine

Mitreva

Dakova

Karadjova

2017

Microchemical Journal

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In this paper, we proposed a procedure for the determination of Fe(III) and total Fe(II)+Fe(III) in wine samples employing newly synthesized Fe(II) ion imprinted polymer (Fe(II)-IIP) as a sorbent incorporated in dispersive solid phase extraction. Cross-linked precipitation copolymerization using 4-vinylpyridine (functional monomer), trimethylolpropane trimethacrylate (cross-linking agent) and 2,2′-bipyridyl as a specific for Fe(II) ligand was used for the synthesis of Fe(II)-IIP. The optimization experiments showed quantitative sorption of both Fe(II) and Fe(III) on the surface of Fe(II)-IIP at pH 7, however selective sorption of only Fe(II) could be achieved in the presence of fluoride ions as a masking agent for Fe(III). The Langmuir adsorption isotherm best described the adsorption of Fe(II) on the surface of the sorbent on the at least two kinds of binding sites with higher and lower affinities as defined by Scatchard plot. The analytical procedure developed allows the determination of iron(III) and total Fe(II)+Fe(III) in wine samples, with limits of quantification 0.1 mg L-1. The relative standard deviation varied in the range 3-7% for Fe content 0.1-10 mg L-1 .

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Section: Introductionmentioning

confidence: 99%

Iron(II) ion imprinted polymer for Fe(II)/Fe(III) speciation in wine

Mitreva

Dakova

Karadjova

2017

Microchemical Journal

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“…It was founded that the elution efficiency of HCl solution was better than that of other stripping agents under the same concentration, and 10 mL of 3 mol L −1 HCl was the most stripping agent to leach the Fe(III) adsorbed from the sorbent and a high recovery (98.7%) was obtained. This is mainly due to the following two reasons: One is the protonation of the active sites . Secondly, as the stability constants of Fe(III) ion with chloride ion, sulfate ion and nitrate ion are 9.8, 5.38, and 1.0, respectively, the complex formed by the complexation of chloride ion in hydrochloric acid and Fe(III) ion is more stable, therefore, the elution efficiency of hydrochloric acid is better than others.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of a surface imprinting silica gel polymer functionalized with phosphonic acid groups for selective adsorption of Fe(III) from aqueous solution

Gan

Feng

2017

J of Applied Polymer Sci

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A Fe(III) ion‐imprinted silica gel polymer functionalized with phosphonic acid groups (IIP‐PA/SiO2) was prepared with surface imprinting technique by using Fe(III) ion as template ion, grafted silica gel as support, and vinylphosphonic acid as functional monomer. The polymer was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, Brunauer–Emmett–Teller, and thermogravimetric analysis. The synthesized imprinted silica gel polymer was used as a sorbent for Fe(III) adsorption. The adsorption properties, such as the effect of solution pH, adsorption kinetic, adsorption isotherm, adsorption selectivity as well as the regeneration of sorbent were studied. The results showd that the prepared sorbent (IIP‐PA/SiO2) had a short adsorption equilibrium time (12 min) and high adsorption capacity (29.92 mg g−1) for Fe(III) at the optimal pH of 2.0. The selectivity coefficients of the sorbent for Fe(III) in presence of Cr(III), Mn(II), and Zn(II) were 51.76, 27.86, and 207. 76, respectively. Moreover, the adsorption capacity of the prepared sorbent did not decrease significantly after six repeated use. Thus, the prepared ion‐imprinted silica gel polymer was a promising candidate sorbent for the selective adsorption of Fe(III) from aqueous solutions. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45165.

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“…Additionally, the proposed method can handle reasonable sample volume, and has less normalized extraction time than other methods. 9,[52][53][54][55][56][57][58][59] Normalized extraction time is defined as the time required to extract 1.0 mg of the adsorbate by 1.0 g of the adsorbent. It is worth noting that the efficiency of raw sawdust was checked toward the removal of iron ions.…”

Section: Comparison With Other Methodsmentioning

confidence: 99%

“…5 Thus, removal of iron species from aqueous media to allowable global limits is essential and has led to an increasing interest in developing efficient methods for this purpose. [8][9][10][11] In recent investigations, adsorption is being extensively employed for separation of metal ions 12 and elaborate efforts have been continued to find an effective and economic adsorbent. Agricultural wastes like corn stalk, rice waste, peanut, straw, sawdust, and sugarcane bagasse have been proved to be low-cost and most efficient adsorbents in this respect.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Behavior of Fe(II) and Fe(III) Ions on Polyaniline Coated Sawdust: Batch and Fixed–Bed Studies

Mansoor

Abbasitabar

2020

ACSi

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The aim of this study is to investigate the suitability of polyaniline coated-sawdust (SD/PAni) as an adsorbent for removal of Fe(II) and/or Fe(III) ions from aqueous solutions. The study includes batch and column tests. With column experiments, the influence of different experimental parameters on the adsorption behavior of Fe(II), Fe(III), and a mixture of both ions were studied and it was found that the optimum adsorption conditions for individual iron species and a mixture of them were similar. The optimal values for pH, flow rate, temperature, and adsorbent mesh size were found to be 4.0, 5.0 mL min −1 , 25 °C, and 100 BSS mesh, respectively. Batch experiments were carried out to study the adsorption isotherms at ambient temperature. The results demonstrated that the adsorption isotherms for both iron species were best represented by the multilayer adsorption isotherm model. The adsorption-desorption stability performance of the adsorbent was evaluated and confirmed over 5 cycles.

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Synthesis and application of ion-imprinted polymer for extraction and pre-concentration of iron ions in environmental water and food samples

Cited by 40 publications

References 18 publications

Iron(II) ion imprinted polymer for Fe(II)/Fe(III) speciation in wine

Iron(II) ion imprinted polymer for Fe(II)/Fe(III) speciation in wine

Synthesis and characterization of a surface imprinting silica gel polymer functionalized with phosphonic acid groups for selective adsorption of Fe(III) from aqueous solution

Adsorption Behavior of Fe(II) and Fe(III) Ions on Polyaniline Coated Sawdust: Batch and Fixed–Bed Studies

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