Trace analysis of Pt (IV) metal ions in roadside soil and water samples by Fe<sub>3</sub>O<sub>4</sub>/graphene/polypyrrole nanocomposite as a solid-phase extraction sorbent followed by atomic absorption spectrometry

Mehdinia, Ali; Asiabi, Mina; Jabbari, Ali

doi:10.1080/03067319.2015.1085523

Cited by 13 publications

(2 citation statements)

References 53 publications

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“…These characteristics have prompted research on the use of these compounds impregnated in adsorbents, aimed at removing contaminants from aqueous solutions. However, these studies have focused only on synthetic, micro-and/or mesoporous materials such as silicas, molecular sieves, and activated carbon [25,26]. Nascimento and Neto [27] investigated a third methodological route based on hydrothermal physical treatment known as steam explosion and capable of expanding the lignocellulosic structure of CP, without adding chemical products.…”

Section: Introductionmentioning

confidence: 99%

Metal Ion Adsorption Using Coconut Shell Powder Activated by Chemical and Physical Treatments

et al. 2021

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A comparative evaluation is presented of physical and chemical treatments performed on coconut shell powder, in relation to the adsorption capacity of Cu 2+ /Cd 2+ ions. The chemical treatment consisted of impregnation with monoethanolamine (mass ratio of 1:1) or a microemulsion (composed of 10 wt % sodium octanoate). The physical treatment was through steam explosion (P = 5 bar, T = 210 °C). Treatment efficiency was assessed using physical characterization of the adsorber material. Assessment of the ion adsorption capacity was performed in batch mode. The comparative investigation was carried out based on the Langmuir model constants, kinetic constants, and thermodynamic parameters. The efficiency of the modifications was also evaluated through adsorptiondesorption cycles.

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Section: Introductionmentioning

confidence: 99%

Metal Ion Adsorption Using Coconut Shell Powder Activated by Chemical and Physical Treatments

et al. 2021

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“…Additionally, they are preferred due to their highly stable nature at different pH ranges, nontoxic properties, and rapid synthesis procedures. Various CPs, polyaniline(PANI) [23], polypyrrole(PPY) [24,25], polythiophene (PTH) [26,27] and their derivatives [28] have been applied in removal and preconcentration studies of heavy metal ions. In most of these works, only a single type of polymer is used except in a few examples copolymers such as PPY-PTH, PANI-PPY, and so on are used [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Speciation of chromium in beverages and seasoning samples by magnetic solid-phase extraction and microsample injection system flame atomic absorption spectrometry

Elci

2020

Cumhuriyet Science Journal

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In this research, a magnetic solid phase extraction based on the use of magnetic polyanilinepolythiophene copolymer (Fe3O4@coPANI-PTH) nanoparticles is applied for chromium speciation from water, beverages and seasoning samples followed by microsample injection system-flame atomic absorption spectrometry(MIS-FAAS) analysis. The selective adsorption of Cr(III) in presence of Cr(VI) by Fe3O4@coPANI-PTH in the pH range of 9.0-10.5 was obtained and the total Cr, after reduction of chromium(VI) to chromium(III) by adding 0.5 mL of concentrated H2SO4 and 10 mL of 5% (w/v) hydroxylamine hydrochloride, was determined. The detection limit, enhancement factor, and repeatability of the optimized method for Cr(III) were calculated to be 1.5 µg L -1 , 38.5, and 1.78%, respectively. The method was validated by the analysis of TMDW-500 drinking water and LGC7162 Strawberry Leaves as certified reference materials. The relative error for total chromium was found to be lower than 4.6%. Recoveries were obtained quantitatively using this method (≥95%).

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Trace determination of lead(II) ions by using a magnetic nanocomposite of the type Fe3O4/TiO2/PPy as a sorbent, and FAAS for quantitation

2017

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Trace analysis of Pt (IV) metal ions in roadside soil and water samples by Fe₃O₄/graphene/polypyrrole nanocomposite as a solid-phase extraction sorbent followed by atomic absorption spectrometry

Cited by 13 publications

References 53 publications

Metal Ion Adsorption Using Coconut Shell Powder Activated by Chemical and Physical Treatments

Metal Ion Adsorption Using Coconut Shell Powder Activated by Chemical and Physical Treatments

Speciation of chromium in beverages and seasoning samples by magnetic solid-phase extraction and microsample injection system flame atomic absorption spectrometry

Trace determination of lead(II) ions by using a magnetic nanocomposite of the type Fe3O4/TiO2/PPy as a sorbent, and FAAS for quantitation

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Trace analysis of Pt (IV) metal ions in roadside soil and water samples by Fe3O4/graphene/polypyrrole nanocomposite as a solid-phase extraction sorbent followed by atomic absorption spectrometry

Cited by 13 publications

References 53 publications

Metal Ion Adsorption Using Coconut Shell Powder Activated by Chemical and Physical Treatments

Metal Ion Adsorption Using Coconut Shell Powder Activated by Chemical and Physical Treatments

Speciation of chromium in beverages and seasoning samples by magnetic solid-phase extraction and microsample injection system flame atomic absorption spectrometry

Trace determination of lead(II) ions by using a magnetic nanocomposite of the type Fe3O4/TiO2/PPy as a sorbent, and FAAS for quantitation

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Trace analysis of Pt (IV) metal ions in roadside soil and water samples by Fe₃O₄/graphene/polypyrrole nanocomposite as a solid-phase extraction sorbent followed by atomic absorption spectrometry