Electrospun nanofiber-based solid-phase extraction

Chigome, Samuel; Torto, Nelson

doi:10.1016/j.trac.2012.04.011

Cited by 54 publications

(15 citation statements)

References 69 publications

(85 reference statements)

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“…As reported by the literatures, polymer nanofibers obtained by electrospinning show excellent heavy-metal ions and organic pollutants removal ability from water [14-16]. However, to our knowledge, no reports using electrospun nanofibers as adsorbent for the removal of estrogens have appeared up to now.…”

Section: Introductionmentioning

confidence: 98%

Nylon 6 electrospun nanofibers mat as effective sorbent for the removal of estrogens: kinetic and thermodynamic studies

Cao

Wang

et al. 2014

Nanoscale Res Lett

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Nylon 6 electrospun nanofibers mat was prepared via electrospinning for the removal of three estrogens, namely, diethylstilbestrol (DES), dienestrol (DS), and hexestrol (HEX) from aqueous solution. Static adsorption as well as the dynamic adsorption was evaluated by means of batch and dynamic disk flow mode, respectively. The kinetic study indicated that the adsorption of the target compounds could be well fitted by the pseudo-second-order equation, suggesting the intra-particle/membrane diffusion process as the rate-limiting step of the adsorption process. The adsorption equilibrium data were all fitted well to the Freundlich isotherm models, with a maximum adsorption capacity values in the range of 97.71 to 208.95 mg/g, which can be compared to or moderately higher than other sorbents published in the literatures. The dynamic disk mode studies indicated that the mean removal yields of three model estrogens were over 95% with a notable smaller amount of adsorbent (4 mg). Thermodynamic study revealed that the adsorption process was exothermic and spontaneous in nature. Desorption results showed that the adsorption capacity can remain up to 80% after seven times usage. It was suggested that Nylon 6 electrospun nanofibers mat has great potential as a novel effective sorbent material for estrogens removal.

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Section: Introductionmentioning

confidence: 98%

Nylon 6 electrospun nanofibers mat as effective sorbent for the removal of estrogens: kinetic and thermodynamic studies

Cao

Wang

et al. 2014

Nanoscale Res Lett

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“…18,19 The extraction medium using nanofibers prepared by the electrospinning method have been also reported by many researchers. 20,21 A nanofiber-composite membrane filter prepared by a melt spinning method was also reported for the enrichment of nickel in water samples. 22 Phthalates are widely used as plasticizers for increasing the flexibility of polyvinyl chloride (PVC).…”

Section: Introductionmentioning

confidence: 99%

Polyethylene Terephthalate Nanofiber Sheet as the Novel Extraction Medium for the Determination of Phthalates in Water Samples

et al. 2019

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A novel extraction medium was developed by packing polyethylene terephthalate (PET) nanofiber sheet having a diameter of 500 nm into a stainless-steel capillary of 0.8 mm inner diameter. The nanofiber was prepared by a carbon dioxide (CO2) laser supersonic multi-drawing method, which has a significantly higher surface area than the original PET fiber. A nanofiber sheet was prepared by winding the nanofibers. Extraction of phthalates in water samples by a PET nanofiberpacked extraction capillary was investigated using a conventional high-performance liquid chromatography (HPLC). Water samples were introduced into the extraction capillary with a low pressure. After extracting the water sample, the extraction capillary was directly connected to a six-port valve of HPLC with a PEEK nut, and the extracted analytes were desorbed, followed by injection to an HPLC system using a small amount of organic solvent. In this manuscript, the fundamental performance of the nanofiber sheet-packed extraction capillary for the extraction of organic compounds in water samples is quantitatively evaluated using a conventional HPLC system.

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“…Research on alternative SPE formats, especially miniaturized SPE, is necessary. It is true that the form of sorbent plays a vital role in the development of SPE devices [18]. Electrospun nanofibers are well used as sorbent for SPE techniques recently due to their remarkable high sorptive capacity [19,20].…”

Section: Introductionmentioning

confidence: 99%

Disks solid phase extraction based polypyrrole functionalized core–shell nanofibers mat

Bian

et al. 2015

Talanta

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Electrospun nanofiber-based solid-phase extraction

Cited by 54 publications

References 69 publications

Nylon 6 electrospun nanofibers mat as effective sorbent for the removal of estrogens: kinetic and thermodynamic studies

Nylon 6 electrospun nanofibers mat as effective sorbent for the removal of estrogens: kinetic and thermodynamic studies

Polyethylene Terephthalate Nanofiber Sheet as the Novel Extraction Medium for the Determination of Phthalates in Water Samples

Disks solid phase extraction based polypyrrole functionalized core–shell nanofibers mat

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