Oil absorption capability of electrospun carbon nanofibrous membranes having porous and hollow nanostructures

Mantripragada, Shobha; Gbewonyo, Spero; Deng, Dongyang; Zhang, Lifeng

doi:10.1016/j.matlet.2019.127069

Cited by 17 publications

(13 citation statements)

References 11 publications

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“…In order to confirm the level of the results, it is shown in Table in comparison with references that absorb mineral oil using other substances. As a result, this study using PLA showed relatively great performance …”

Section: Resultsmentioning

confidence: 77%

“…As a result, this study using PLA showed relatively great performance. [30][31][32] In summary, the hollow fiber membrane using DCM showed the highest oil absorbency, and the effect of coating m-silica was sufficiently high. Although the water absorption was also the highest in DCM whether selective absorption occurs properly is still unclear.…”

Section: M-silica Coated Pla Hollow Fiber Membranementioning

confidence: 86%

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Research of polylactide porous hollow nanofiber membrane with high selective absorption characteristics

Ryu

Kim

2020

J of Applied Polymer Sci

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A porous hollow fiber membrane using polylactide (PLA), a representative bio‐derived polymer, was successfully fabricated. The use of high surface area fabrics can effectively absorb liquids, making it possible to impart selective absorbency to fabrics made of hydrophobic PLA. In this study, a porous PLA fabric was developed by applying the porosity of the fiber surface depending on the solvent, and the change was confirmed by morphological image analysis. To increase the total surface area effectively, hollow fibers were fabricated with coaxial electrospinning to maintain the pores of the surface while having a hollow space, and the changed oil absorption based on the fiber structure was measured. To enhance the selective absorption of the fabric to the oil, a coating process using nanoparticle was added. Dodecyltrichlorosilane‐treated silica became superhydrophobic by attaching special functional groups to the surface of the particles. The treated silica was coated on the surface of the fabric to provide the functionality. To confirm the selective absorbency of the coated fabric, changes in oil and water absorption were analyzed, and the performance of the fabric was demonstrated. The fabricated PLA porous hollow fiber membranes are expected to replace existing products in the fields of tissue engineering, biofilters, and environment‐friendly fabrics.

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Section: Resultsmentioning

confidence: 77%

Section: M-silica Coated Pla Hollow Fiber Membranementioning

confidence: 86%

Research of polylactide porous hollow nanofiber membrane with high selective absorption characteristics

Ryu

Kim

2020

J of Applied Polymer Sci

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“…The blend-derived NFs, carbonised at the same T C (650 °C), had larger diameters, in agreement with the literature reports [ 55 ]. The diameter increase was due to the generation of a relatively large volume of volatile products from PMMA degradation/gasification during the PAN carbonisation, which counteracted the NF contraction [ 43 ].…”

Section: Resultsmentioning

confidence: 99%

“…Presently, due to new environmental protection policies, the development of materials with high and efficient sorption capacity is attracting renewed attention [ 42 , 43 , 44 ]. Although polyacrylonitrile (PAN) is among the polymers most frequently chosen for the production of electrospun fibrous membranes [ 31 ], few studies have reported the use of PAN-derived membranes for oil recovery ( Table S1 ), focusing mainly on mineral oils [ 5 , 29 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Electrospun Self-Supporting Paper-Like Fibrous Membranes as Oil Sorbents

et al. 2021

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Presently, adsorption/absorption is one of the most efficient and cost-effective methods to clean oil spill up. In this work, self-supporting paper-like fibrous membranes were prepared via electrospinning and carbonisation at different temperatures (500, 650 or 800 °C) by using polyacrylonitrile/polymethylmethacrylate blends with a different mass ratio of the two polymers (1:0, 6:1 or 2:1). After morphological and microstructural characterisation, the as-produced membranes were evaluated as sorbents by immersion in vegetable (sunflower seed or olive) and mineral (motor) oil or in 1:4 (v:v) oil/water mixture. Nitrogen-rich membrane carbonised at the lowest temperature behaves differently from the others, whose sorption capacity by immersion in oil, despite the great number of sorbent and oil properties involved, is mainly controlled by the fraction of micropores. The encapsulation of water nanodroplets by the oil occurring during the immersion in oil/water mixture causes the oil-from-water separation ability to show an opposite behaviour compared to the sorption capacity. Overall, among the investigated membranes, the support produced with 2:1 mass ratio of the polymers and carbonisation at 650 °C exhibits the best performance both in terms of sorption capacity (73.5, 54.8 and 12.5 g g−1 for olive, sunflower seed and motor oil, respectively) and oil-from-water separation ability (74, 69 and 16 for olive, sunflower seed and motor oil, respectively).

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“…As shown in Fig. 12, the absorption capacities of the oil collector for these oils were in the range of 39.67-79.56 g/g, much higher than some other oil-absorbing materials such as a biomimetic polypropylene foam (9.4 g/g) [55], electrospinning carbon nanofibrous membrane (44.9 g/g) [56] and [ADT-(CF 3 ) 2 ] modified polyurethane sponge (35.0-77.2 g/g) [57].…”

Section: Durability Of Dps Meshes In Harsh Environmentsmentioning

confidence: 87%

Mussel inspired durable pH-responsive mesh for high-efficient oil/water separation

et al. 2020

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Oil absorption capability of electrospun carbon nanofibrous membranes having porous and hollow nanostructures

Cited by 17 publications

References 11 publications

Research of polylactide porous hollow nanofiber membrane with high selective absorption characteristics

Research of polylactide porous hollow nanofiber membrane with high selective absorption characteristics

Evaluation of Electrospun Self-Supporting Paper-Like Fibrous Membranes as Oil Sorbents

Mussel inspired durable pH-responsive mesh for high-efficient oil/water separation

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