Preconcentration of Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Pb(II) with ethylenediamine-modified graphene oxide

Zawisza, Beata; Baranik, Anna; Malicka, E.; Talik, E.; Sitko, Rafał

doi:10.1007/s00604-015-1629-y

Cited by 79 publications

(12 citation statements)

References 49 publications

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“…The improvement of their selectivity can be realized by application of surfactant [ 15 – 17 ], suitable chelating agent [ 18 , 19 ], or through chemical functionalization, e.g. via silanization [ 20 – 22 ] or creation of ester or amide bonds [ 23 , 24 ]. In case of Cr(VI), the amino-functionalized GO seems to be the appropriate adsorbent because the protonated amino groups provide a positive surface charge that is suitable for the adsorption of Cr(VI) anions [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Selective adsorption and determination of hexavalent chromium ions using graphene oxide modified with amino silanes

et al. 2018

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Novel adsorbents are described for the preconcentration of chromium(VI). Graphene oxide (GO) was modified with various amino silanes containing one, two, or three nitrogen atoms in the molecule. These include 3-aminopropyltriethoxysilane (APTES), N-(3-trimethoxysilylpropyl)ethylenediamine (TMSPEDA), and N1-(3-trimethoxysilylpropyl)diethylenetriamine (TMSPDETA). The resulting GO derivatives were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and energy-dispersive X-ray fluorescence spectrometry (EDXRF). Adsorption studies show that these GO based sorbents are highly selective for Cr(VI) in the presence of Cr(III) at pH 3.5. Although the amino silanes applied in modification of GO contain different numbers of nitrogen atoms, the maximum adsorption capacities of GO derivatives are very similar (13.3–15.1 mg·g−1). Such results are in accordance with spectroscopy studies which show that the amount of amino silanes attached to GO decreases in the order of APTES > TMSPEDA > TMSPDETA. The APTES-modified GO was applied to selective and sensitive extraction of Cr(VI) ions prior to quantitation by low-power EDXRF using the Cr Kα line. The Cr(VI) ions need not be eluted from the solid adsorbent. The method has a 0.17 ng·mL−1 detection limit, and the recovery is 99.7 ± 2.2% at a spiking level of 10 ng·mL−1. The method was successfully applied to the determination of Cr(VI) in water samples. Graphical abstractGraphene oxide adsorbents modified with various amino silanes are described for the preconcentration and speciation of trace and ultratrace levels of chromium ions. Electronic supplementary materialThe online version of this article (10.1007/s00604-017-2640-2) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Selective adsorption and determination of hexavalent chromium ions using graphene oxide modified with amino silanes

et al. 2018

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“…Graphene and graphene oxide, the new members of the carbon-based materials, exhibit great potential to be a very useful adsorbent for preconcentration of metal ions. [43][44][45][46] In the current research, for the first time, the modification of magnetic GO with the well-known ligand 8-hydroxyquinoline was described and applied to rapid and low-cost extraction of trace Cd(II) and Pb(II) ions from various matrices. Box-Behnken design was employed for the optimization of the extraction and elution steps.…”

Section: Discussionmentioning

confidence: 99%

Synthesis and Application of Magnetic Graphene Oxide Modified with 8‐Hydroxyquinoline for Extraction and Preconcentration of Trace Heavy Metal Ions

2017

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In the present paper for the first time, magnetic graphene oxide (GO‐Fe3O4) was modified with well‐known ligand 8‐hydroxyquinoline, as a new functional group, for simultaneous separation/pre‐concentration of Cd(II) and Pb(II) ions. The experiments and the optimization of variables affecting separation/preconcentration were designed, using the response surface methodology (BBD). In the optimized conditions, the limit of detection (LOD) was 0.09 ng mL–1 and 0.27 ng mL−1 for Cd(II) and Pb(II), respectively; furthermore, the pre‐concentration factor was obtained 130.43. The relative standard deviation (RSD) was 3.6 % and 3.9 % for Cd(II) and Pb(II) in the selected conditions, respectively. The procedure recommended was applied in order to determine Cd(II) and Pb(II) ions at trace levels in tomato, mushroom, lettuce, lipstick, and fish samples with satisfactory results.

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“…Ethylene diamine (EDA) [89] and diethylenetriamine (DETA) [89] are two examples of amines that were employed for the functionalization of GO. Ethylene diamine (EDA)-modified GO has been used for the d-SPE of Fe(III), Co(II), Ni(II), Cu(II), Zn(II), and Pb(II) from water samples.…”

Section: Multielement Extraction With Graphene-oxide-derived Materialsmentioning

confidence: 99%

Sample Preparation Using Graphene-Oxide-Derived Nanomaterials for the Extraction of Metals

et al. 2020

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Graphene oxide is a compound with a form similar to graphene, composed of carbon atoms in a sp2 single-atom layer of a hybrid connection. Due to its significant surface area and its good mechanical and thermal stability, graphene oxide has a plethora of applications in various scientific fields including heterogenous catalysis, gas storage, environmental remediation, etc. In analytical chemistry, graphene oxide has been successfully employed for the extraction and preconcentration of organic compounds, metal ions, and proteins. Since graphene oxide sheets are negatively charged in aqueous solutions, the material and its derivatives are ideal sorbents to bind with metal ions. To date, various graphene oxide nanocomposites have been successfully synthesized and evaluated for the extraction and preconcentration of metal ions from biological, environmental, agricultural, and food samples. In this review article, we aim to discuss the application of graphene oxide and functionalized graphene oxide nanocomposites for the extraction of metal ions prior to their determination via an instrumental analytical technique. Applications of ionic liquids and deep eutectic solvents for the modification of graphene oxide and its functionalized derivatives are also discussed.

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Preconcentration of Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Pb(II) with ethylenediamine-modified graphene oxide

Cited by 79 publications

References 49 publications

Selective adsorption and determination of hexavalent chromium ions using graphene oxide modified with amino silanes

Selective adsorption and determination of hexavalent chromium ions using graphene oxide modified with amino silanes

Synthesis and Application of Magnetic Graphene Oxide Modified with 8‐Hydroxyquinoline for Extraction and Preconcentration of Trace Heavy Metal Ions

Sample Preparation Using Graphene-Oxide-Derived Nanomaterials for the Extraction of Metals

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