Fabrication of Fe3O4@graphene oxide core-shell nanospheres for ferrofluid-based dispersive solid phase extraction as exemplified for Cd(II) as a model analyte

Alvand, Mahrouz; Shemirani, Farzaneh

doi:10.1007/s00604-016-1805-8

Cited by 62 publications

(19 citation statements)

References 32 publications

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“…The applications of ILs as modifiers of GO-based materials for the extraction of metal ions are summarized in Table 3. Alvand and Shemirani synthesized core-shell-structured GO/Fe 3 O 4 nanospheres via covalent bonding and used it for ferrofluid d-SPE of Cd from environmental water samples, carrot, lettuce, and tobacco [109]. For this purpose, acetic acid was used as stabilizing agent and the acetic-acid-coated magnetic nanospheres were dispersed in 1-ethyl-3-methylimidazolium tetrafluoroborate.…”

Section: Application Of Ionic Liquids and Deep Eutectic Solvents Formentioning

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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Section: Application Of Ionic Liquids and Deep Eutectic Solvents Formentioning

confidence: 99%

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

et al. 2020

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“…The advancement of new adsorbents with a phenomenal adsorption limit is a standout amongst the most essential answers for the issue. G-based MSPE is becoming more and more popular in heavy metal isolation and enrichments such as Cd (II) [76], Zn (II) [77], As (III) and As (V) [78], Hg (II) [79], and Cr (VI) [80]. Cation connections, electrostatic collaborations, hydrogen bonds and dative bonds in the G-based attractive composite can consume metal particles.…”

Section: Detection Of Inorganic Pollutantsmentioning

confidence: 99%

Mi-Spe, M-Spe and M-SPD Recent Application on Solid Phase Extraction for Compound Extraction of Complex Matrices

Gopalan

Hasanah

2019

Int J App Pharm

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Solid Phase Extraction is a method used for extraction, purification of compounds contained in complex matrices and purification of samples in the fields of industry, pharmacy, and toxicology analysis. This review represents the recent advances of solid phase extraction from different mode of separation which are the most commonly used in recent days such as molecular imprinting solid phase extraction (MISPE), magnetic solid phase extraction (MSPE) and matrix solid phase dispersion (MSPD). In this review, the applications of MISPE in the analysis of agrochemicals such as herbicides, fungicides and insecticides are summarized. This review also states preparation of various magnetic composites (MSPE) based on graphene and its application as adsorbents in pre concentrating natural mixes, organic macromolecules. Besides this, this review summarizes the application of MSPD in biological, food, and environmental samples, including both organic and inorganic analyte.

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“…Unique size and desirable physicochemical properties of nanoparticles have made them suitable options for improving DSPE method. Among different nanosorbents, cheaper and more stableones such as graphene and carbon nanotubes have been used more frequently [16][17][18]. Graphitic carbon nitride (g-C 3 N 4 ) is a non-toxic analogue of graphene which is very stable and inexpensive and has suitable band structure, easy synthesis method and unique physicochemical properties [19,20].…”

Section: Introductionmentioning

confidence: 99%

Dispersive solid phase extraction using graphitic carbon nitride microparticles for the determination of trace amounts of lead in water samples

Zolfonoun¹

2020

Anal. Method Environ. Chem. J.

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In this work, ultrasound-assisted dispersive micro-solid phase extraction (USA-D-µSPE) technique using graphitized carbon nitride (g-C3N4) is proposed for the preconcentration of low level of lead in aqueous samples. In this method, microparticles of graphitized carbon nitride sorbent were dispersed in the samples using ultrasonic bath and Pb(II) ions were directly adsorbed on the surface of g-C3N4 particles. After adsorption and desorption of lead ions from g-C3N4 particles, the Pb concentration was determined by the inductively coupled plasma- optical emission spectroscopy (ICP-OES). The main advantages of this method are high speed, simplicity and cheapness. The effects of pH, sorbent amount, eluent type and time on the recovery of the analyte were investigated. Under the optimized conditions and preconcentration of 10 mL of sample, the detection limit of 1.24 μg L-1 was obtained. The results were validated by standard reference materials (NIST, SRM) and spiking of real samples by USA-D-µSPE procedure.

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Fabrication of Fe3O4@graphene oxide core-shell nanospheres for ferrofluid-based dispersive solid phase extraction as exemplified for Cd(II) as a model analyte

Cited by 62 publications

References 32 publications

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

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

Mi-Spe, M-Spe and M-SPD Recent Application on Solid Phase Extraction for Compound Extraction of Complex Matrices

Dispersive solid phase extraction using graphitic carbon nitride microparticles for the determination of trace amounts of lead in water samples

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