Fabrication and Characterization of Nanofibers Membranes using Electrospinning Technology for Oil Removal

Al-Naemi, Amer Naji Ahmed; Abdul-Majeed, Mohammed A.; Al-Furaiji, Mustafa; Ghazi, Inmar N.

doi:10.21123/bsj.2021.18.4.1338

Cited by 7 publications

(6 citation statements)

References 22 publications

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“…The electrospun nanofibers have outstanding characterizations such as a vast surface area-tovolume ratio, flexibility in surface functionalities, intrinsically high porosity, fully interconnected pore structures, low hydraulic resistance, and ease of scalable synthesis 2 . Thus, electrospun nanofibers membranes (ENMs) have been used in various applications due to their unique characterizations and promising potentials such as scaffolds in tissue engineering 3 , electrical storage 4 , drug delivery 5 , and oil removal 6 . In addition, the ENMs are increasingly considered good candidates for applications that need high permeability and low energy cost.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Electrospinning Parameters on Morphological and Mechanical Properties of PAN-based Nanofibers Membrane

Al-Okaidy

Waisi²

2023

Baghdad Sci.J

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The electrospun nanofibers membranes (ENMs) have gained great attention due to their superior performance. However, the low mechanical strength of ENMs, such as the rigidity and low strength, limits their applications in many aspects which need adequate strength, such as water filtration. This work investigates the impact of electrospinning parameters on the properties of ENMs fabricated from polyacrylonitrile (PAN) solved in N, N-Dimethylformamide (DMF). The studied electrospinning parameters were polymer concentration, solution flow rate, collector rotating speed, and the distance between the needle and collector. The fabricated ENMs were characterized using scanning electron microscopy (SEM) to understand the surface morphology and estimate the average fiber sizes. The membrane porosity percentage was measured using the dry-wet weight method. Also, a dynamic mechanical analyzer was used to determine the mechanical strength properties (tensile strength and Young's modulus) (DMA). The obtained results revealed that the polymer concentration and flow rate mainly affect the porosity and fiber size in ENMs. Increasing the polymer concentration improves the strength and flexibility, while the flow rate did not show a clear effect on the mechanical strength of ENMs. Both fibers collecting speed and spinning distance did not clearly impact the membrane morphology. ENMs flexibility significantly increased with increasing the collector speed and decreasing the spinning distance. Strong and flexible ENMs with small fibers can be fabricated using 10% PAN/DMF at a flow rate of 1 mL/h, collector speed of 140 rpm, and spinning distance of 13 cm.

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Section: Introductionmentioning

confidence: 99%

The Effect of Electrospinning Parameters on Morphological and Mechanical Properties of PAN-based Nanofibers Membrane

Al-Okaidy

Waisi²

2023

Baghdad Sci.J

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“…Ceramic membranes can be prepared by several methods including slip casting, tape casting, extrusion and, powder pressing which change the particle suspension to a membrane forerunner to form symmetric and composite ceramic membranes [8][9][10][11] Many researches have established the effectiveness of these membranes in water treatment, as they are characterized by excessive chemical stability and mechanical stability and can resist different temperatures, but their preparation needs excessive attention and effort [12][13][14][15][16] .…”

Section: Introductionmentioning

confidence: 99%

Preparing New Ceramic Membranes from Syrian Zeolite Coated with Silver Nanoparticles to Treatment Wells Water

Hammal

2023

Baghdad Sci.J

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As a result of the exacerbation of the problem of water pollution, research was directed towards studying the treatment using ceramic membranes, which proved to be highly effective in treating all water sources. The research aims to study the possibility of preparing a new type of ceramic membranes from Syrian zeolite that was not previously used in this field. In this research, ceramic membranes were prepared from Syrian raw zeolite in several stages. Zeolite sample was characterized, grinded, mixed with boric acid, pressed to form desks, treated thermally according to experiment program, finally coated with silver nanoparticles. Specifications of prepared membranes were determined according to reference methods, effectiveness of prepared membranes were tested in well water handling, that water sample was filtrated through prepared membranes, and then it type MAC, so removal degree was 100%, While removal degree was 97% for bacterial strains on Agar with type PCA, 93% on Agar with type PDA which were conformed to Syrian standard /45 /2007. Specifications of prepared membranes were determined according to reference methods, effectiveness of prepared membranes were tested in well water handling, that water sample was filtrated through prepared membranes, then it was Characterized after treatment. Results showed that prepared zeolite membranes were high effectiveness through decrease chemical and microbial pollutants which were conformed to Syrian standard /45 /2007

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“…These techniques have different disadvantages, including their high cost, the use of chemical compounds, corrosion, a low efficiency, recontamination problems, and the need for extensive land areas [ 16 , 17 ]. Emulsified oil is usually very difficult to deal with using traditional methods [ 18 ]. This is primarily because of the droplet sizes for emulsified oils, which are usually smaller than 10 µm [ 19 ] and lead to complex treatment processes [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

A Competitive Study Using Electrospinning and Phase Inversion to Prepare Polymeric Membranes for Oil Removal

et al. 2023

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Polyacrylonitrile (PAN) is a popular polymer that can be made into membranes using various techniques, such as electrospinning and phase inversion. Electrospinning is a novel technique that produces nonwoven nanofiber-based membranes with highly tunable properties. In this research, electrospun PAN nanofiber membranes with various concentrations (10, 12, and 14% PAN/dimethylformamide (DMF)) were prepared and compared to PAN cast membranes prepared by the phase inversion technique. All of the prepared membranes were tested for oil removal in a cross-flow filtration system. A comparison between these membranes’ surface morphology, topography, wettability, and porosity was presented and analyzed. The results showed that increasing the concentration of the PAN precursor solution increases surface roughness, hydrophilicity, and porosity and, consequently, enhances the membrane performance. However, the PAN cast membranes showed a lower water flux when the precursor solution concentration increased. In general, the electrospun PAN membranes performed better in terms of water flux and oil rejection than the cast PAN membranes. The electrospun 14% PAN/DMF membrane gave a water flux of 250 LMH and a rejection of 97% compared to the cast 14% PAN/DMF membrane, which showed a water flux of 117 LMH and 94% oil rejection. This is mainly because the nanofibrous membrane showed higher porosity, higher hydrophilicity, and higher surface roughness compared to the cast PAN membranes at the same polymer concentration. The porosity of the electrospun PAN membrane was 96%, while it was 58% for the cast 14% PAN/DMF membrane.

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Fabrication and Characterization of Nanofibers Membranes using Electrospinning Technology for Oil Removal

Cited by 7 publications

References 22 publications

The Effect of Electrospinning Parameters on Morphological and Mechanical Properties of PAN-based Nanofibers Membrane

The Effect of Electrospinning Parameters on Morphological and Mechanical Properties of PAN-based Nanofibers Membrane

Preparing New Ceramic Membranes from Syrian Zeolite Coated with Silver Nanoparticles to Treatment Wells Water

A Competitive Study Using Electrospinning and Phase Inversion to Prepare Polymeric Membranes for Oil Removal

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