Use of Fe3O4 Magnetic Nanoparticles Coated with Polythiophene for Simultaneous Preconcentration of Cu (II), Co (II), Cd (II), Ni (II) and Zn(II) Ions Prior to their Determination by MIS-FAAS

Sodan, Nilgün Elyas; Höl, Ayşen; Çaylak, Osman; Elçi, Latif

doi:10.17344/acsi.2018.4636

Cited by 18 publications

(4 citation statements)

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“…Presumably, the PANI coated on the Fe 3 O 4 surface is partially stripped off by the acidic solution used as the eluent in the first adsorption-desorption cycle, resulting in a decline in the analytical performance of Fe 3 O 4 @PANI NPs. It could be concluded from previous studies that this is one of the most important disadvantages of direct polymer coating on the Fe 3 O 4 surface [ 22 , 26 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

“…These polymers can constitute different sorption mechanisms, including complexation, ion exchange process, acid-base, and π-π interaction [ 24 ]. Since the development of magnetic conductive polymers (MCPs) such as magnetic polythiophene (Fe 3 O 4 @PTh) [ 25 , 26 ] and magnetic polythionine (Fe 3 O 4 @polythionine) [ 27 ], they have been investigated for the selective concentration of trace metal ions from complex matrices. Recently, the applications of different polyaniline-modified magnetic materials and adsorbents for the removal of Cr(VI) from aqueous samples have been overviewed [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

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Chromium speciation in water using magnetic polyaniline nanoparticles coupled with microsampling injection-flame atomic absorption spectroscopy

ÇAYLAK

2024

Turkish Journal of Chemistry

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The chromium speciation procedure was optimized using magnetic polyaniline nanoparticles (Fe 3 O 4 @PANI NPs) solid-phase extraction coupled with microsampling injection-flame atomic absorption spectrometry (MIS-FAAS). Chromium speciation was successfully achieved by Fe 3 O 4 @PANI NPs at pH 8.0. The recoveries obtained for Cr(III) and Cr(VI) were above 95% and under 5%, respectively. Recoveries of over 95% for Cr(III) from 40.0 mL of the sample were obtained using 25 mg Fe 3 O 4 @PANI NPs and 500 μL of 0.2% (w/v) thiourea (TU) solution prepared in 2 mol L −1 HCl as eluent. Total chromium as Cr(III) was extracted quantitatively after reducing the Cr(VI) to Cr(III). The linear range, detection limit, preconcentration factor, and precision of the optimized method for Cr(III) in aqueous solution were 2.5–94.0 μg L −1 , 0.335 μg L −1 , 80, and 3.07%, respectively. The validation of the method was controlled using SPS-WW2 Batch 114 wastewater and BCR-715 industrial wastewater as standard reference materials (SRMs) for environmental water, and the obtained results were in close agreement with the certified values.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chromium speciation in water using magnetic polyaniline nanoparticles coupled with microsampling injection-flame atomic absorption spectroscopy

ÇAYLAK

2024

Turkish Journal of Chemistry

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“…al., 2015) (Mohammadi et. al., 2013) (Sodan et. al., 2020), have been developed for the preconcentration and separation of various trace metals from samples.…”

Section: ) Introductionmentioning

confidence: 99%

Green surfactant assisted-solidified floating organic drop micro-extraction (SA-SFODME) for the preconcentration of trace cobalt and determination by flame atomic absorption spectrometry (FAAS)

Ünaldı,

Durukan

2024

Preprint

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This study focuses on refining the solidified floating organic drop microextraction (SFODME) without using chelating agent technique for enhancing the preconcentration of trace cobalt levels. The cobalt ion formed a hydrophobic complex with the help of the anionic surfactant sodium dodecyl benzene sulfonate (SDBS), and this hydrophobic complex was extracted into the 1-dodecanol drop. This serves as a preliminary step for subsequent analysis using flame atomic absorption spectrometry (FAAS). Several factors influencing microextraction efficiency, such as pH, sodium dodecylbenzenesulfonate (SDBS) concentration, extraction time, stirring rate, and temperature, were systematically investigated to determine optimal conditions. Under these optimized parameters, an enhancement factor of 80 was achieved for a 25 mL sample solution. The calibration curve displayed linearity within the 0.01–0.075 mg/L range, with a limit of detection (3s) of 2.8 µg/L and a limit of quantification (10s) of 9.3 µg/L. The relative standard deviation (RSD) for 10 replicate measurements of 10 µg/L cobalt was 2.1%. The method was successfully applied to extract and determine cobalt in reference water samples and various real water samples, showing notably high extraction yields.

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“…In recent years, much attention has been paid to Br 3 − immobilized on polymers, 1,17 magnetic nanoparticles (MNP) 16,[18][19][20][21][22][23] and other solid supports. 24 The organic tribromide immobilized on magnetic nanoparticles can be easily separated from the reaction mixture using an external magnet without the need for filtration or other workup processes.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Nanoparticles Linked to Pyridinium Hydrotribromide Groups as Catalysts for Selective Oxidation of Alcohols and Protection of Alcohols

Tabari

Pourali

Zare

2022

ACSi

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In this research, a novel magnetic nanocatalyst based on iron oxide nanoparticles linked with pyridinium hydrotribromide (Fe3O4@PyHBr3) was synthesized in three steps. In the first step, 3-(aminopropyl)triethoxysilane (APTES) was reacted with 4-(bromomethyl)pyridine hydrobromide. In the second step, the product obtained in the first step was reacted with iron oxide nanoparticles. In the last step, a grinding reaction was carried out with KBr and HIO4 in a mortar. The Fe3O4@PyHBr3 nanocatalyst was characterized by FT-IR, CHN, XRD, SEM, TGA and VSM analysis. The magnetic nanocatalyst was used as a catalyst for the selective oxidation of alcohols to aldehydes and ketones using 30% H2O2 as oxidant in a short time and with high yields. Moreover, no overoxidation of the alcohols was observed. The nanocatalyst was efficiently recycled in five consecutive cycles without significant loss of its catalytic activity. Moreover, trimethylsilylation and tetrahydropyranylation of alcohols were carried out in the presence of this nanocatalyst.

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Use of Fe3O4 Magnetic Nanoparticles Coated with Polythiophene for Simultaneous Preconcentration of Cu (II), Co (II), Cd (II), Ni (II) and Zn(II) Ions Prior to their Determination by MIS-FAAS

Cited by 18 publications

References 0 publications

Chromium speciation in water using magnetic polyaniline nanoparticles coupled with microsampling injection-flame atomic absorption spectroscopy

Chromium speciation in water using magnetic polyaniline nanoparticles coupled with microsampling injection-flame atomic absorption spectroscopy

Green surfactant assisted-solidified floating organic drop micro-extraction (SA-SFODME) for the preconcentration of trace cobalt and determination by flame atomic absorption spectrometry (FAAS)

Magnetic Nanoparticles Linked to Pyridinium Hydrotribromide Groups as Catalysts for Selective Oxidation of Alcohols and Protection of Alcohols

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