Ultrasound-assisted Solid-liquid Trap Phase Extraction based on Functionalized Multi Wall Carbon Nanotubes for Preconcentration and Separation of Nickel in Petrochemical Waste Water

Shirkhanloo, Hamid; Merchant, Kheirolnesa; Mobarake, Mostafa Dehghani

doi:10.1134/s1061934819090090

Cited by 14 publications

(9 citation statements)

References 45 publications

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“…The preparation of the composite material is generally carried out by dispersing each component in water or an organic solvent and stirring the mixture for up to 48 h at room temperature or heating. Some studies also use sonication to improve the dispersion of the carbon material [59,60,[95][96][97]. It is interesting to mention that most of the studies use magnetic C-IL materials [61][62][63][64][65]77,96,[98][99][100][101][102][103][104][105][106].…”

Section: Carbonaceous-based Ionic-liquid Composites (C-ils)mentioning

confidence: 99%

“…In this case, the carbon materials are used as a support for the synthesis of MPs increasing the surface area of the material, and then, the magnetic carbon material is subsequently modified with the IL. Regarding the type of carbonaceous materials used in the extraction schemes to prepare the composite, most of the studies use GO [58,62,64,65,95,[97][98][99][103][104][105][106][107][108][109][110][111][112][113], followed by G [57,63,100,102,114], while a few have reported the use of SWCNTs [96] and MWCNTs [59,60,77,101]. This may be due to the easy preparation of GO and G in comparison with the three-dimensional structures.…”

Section: Carbonaceous-based Ionic-liquid Composites (C-ils)mentioning

confidence: 99%

“…Regarding the ILs, the vast majority of C-ILs materials use the more conventional and easily tunable imidazolium-based ILs [57][58][59][60][62][63][64]95,[97][98][99][100][101][102][103]105,106,[108][109][110][111][112][113][114], but guanidinium-based [65,107] and DABCO-based ILs [96] have also been used. With regards to the anions, both hydrophilic ILs with halide anions [58,[61][62][63]65,77,95,96,98,100,106,110,112,113] and hydrophobic ILs with [PF 6 − ] as an anion have been reported [57,59,60,64,97,99,[101]…”

Section: Carbonaceous-based Ionic-liquid Composites (C-ils)mentioning

confidence: 99%

“…Interestingly, some studies have reported the use of IL as a matrix or as a trapping phase to disperse the carbon materials, resulting in a bucky gel [57,59,60,97,99,103]. This soft viscous material is obtained by direct dispersion of G/GO in the IL using either an agate mortar or by sonication.…”

Section: Carbonaceous-based Ionic-liquid Composites (C-ils)mentioning

confidence: 99%

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Role of Ionic Liquids in Composites in Analytical Sample Preparation

et al. 2020

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Ionic liquids (ILs) are a group of non-conventional salts with melting points below 100 °C. Apart from their negligible vapor pressure at room temperature, high thermal stability, and impressive solvation properties, ILs are characterized by their tunability. Given such nearly infinite combinations of cations and anions, and the easy modification of their structures, ILs with specific properties can be synthesized. These characteristics have attracted attention regarding their use as extraction phases in analytical sample preparation methods, particularly in liquid-phase extraction methods. Given the liquid nature of most common ILs, their incorporation in analytical sample preparation methods using solid sorbents requires the preparation of solid derivatives, such as polymeric ILs, or the combination of ILs with other materials to prepare solid IL-based composites. In this sense, many solid composites based on ILs have been prepared with improved features, including magnetic particles, carbonaceous materials, polymers, silica materials, and metal-organic frameworks, as additional materials forming the composites. This review aims to give an overview on the preparation and applications of IL-based composites in analytical sample preparation in the period 2017–2020, paying attention to the role of the IL material in those composites to understand the effect of the individual components in the sorbent.

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Section: Carbonaceous-based Ionic-liquid Composites (C-ils)mentioning

confidence: 99%

Section: Carbonaceous-based Ionic-liquid Composites (C-ils)mentioning

confidence: 99%

Section: Carbonaceous-based Ionic-liquid Composites (C-ils)mentioning

confidence: 99%

Section: Carbonaceous-based Ionic-liquid Composites (C-ils)mentioning

confidence: 99%

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Role of Ionic Liquids in Composites in Analytical Sample Preparation

et al. 2020

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“…The Mag-CNTs-COOH/ d-µSPE method was evolved based on the previously published method (Li et al 2019a) by aiming to exclude the elution step and achieve a one-step desorption/ derivatization approach for efficient extraction. The use of phenylsulfonic acid functionalized multi-walled carbon nanotubes (MWCNTs-Ph-SO 3 H) has been demonstrated successful for the preconcentration of Ni(II) ions in petrochemical wastewater samples (Shirkhanloo et al 2019). Another goal in this study was to develop the Mag-CNTs-SO 3 H/d-µSPE workflow to facilitate ionic extraction between the negatively charged sulfonyl groups on the Mag-CNTs and the positively charged amino moieties on ATCA.…”

Section: Introductionmentioning

confidence: 99%

Performance comparison between solid phase extraction and magnetic carbon nanotubes facilitated dispersive-micro solid phase extractions (Mag-CNTs/d-µSPE) of a cyanide metabolite in biological samples using GC–MS

Petrikovics

2021

J Anal Sci Technol

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Dispersive-micro solid phase extraction (d-µSPE) has gained increasing attention due to its convenience, effectiveness, and flexibility for sorbent selection. Among a various selection of materials, magnetic carbon nanotubes (Mag-CNTs) is a promising d-µSPE sorbent with excellent separation efficiency in addition to its high surface area and adsorption capability. In this work, two different surface-modified Mag-CNTs, Mag-CNTs-COOH and Mag-CNTs-SO3H, were developed to facilitate d-µSPE (Mag-CNTs/d-µSPE). The cyanide metabolite, 2-aminothiazoline-4-carboxylic acid (ATCA), was selected to evaluate their extraction performance using gas chromatography–mass spectrometry (GC–MS) analysis. The Mag-CNTs-COOH enabled a one-step derivatization/desorption approach in the workflow; therefore, a better overall performance was achieved. Compared to the Mag-CNTs-SO3H/d-µSPE and SPE workflow, the one-step desorption/derivatization approach improved the overall extraction efficiency and reduced solvent consumption and waste production. Both Mag-CNTs/d-µSPE workflows were validated according to ANSI/ASB 036 guidelines and showed excellent analytical performances. The limit of detection (LOD) and limit of quantitation (LOQ) of ATCA in synthetic urine were 5 and 10 ng/mL, respectively, and that in bovine blood were achieved at 10 and 60 ng/mL. The SPE method’s LOD and LOQ were also determined at 1 and 25 ng/mL in bovine blood samples. The Mag-CNTs/d-µSPE methods demonstrated great potential to extract polar and ionic metabolites from biological matrices. The extraction processes of ATCA described in this work can provide an easier-to-adopt procedure for potential routine forensic testing of the stable biomarker in cyanide poisoning cases, particularly for those cases where the cyanide detection window has passed.

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