Effect of Solvent Vapor Treatment on Electrospun Nylon 6,6 Nanofiber Membrane

Halim, Nur Syakinah Abdul; Wirzal, Mohd Dzul Hakim; Bilad, Muhammad Roil; Yusoff, Abdull Rahim Mohd; Nordin, Nik Abdul Hadi Md; Putra, Zulfan Adi; Jaafar, Juhana

doi:10.1088/1757-899x/429/1/012019

Cited by 6 publications

(5 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The range of dye removal increases from 6.4% to 8.4%, which indicates that as fouling happens, the percentage of dye removal increases due to more dye particles being trapped in the membrane pores and hence lowers the membrane pore size. It is evident that most of the synthetic wastewater tends to entrain across the membrane due to the small size and the amount of permeate collected does not change significantly [ 47 ].…”

Section: Resultsmentioning

confidence: 99%

Integrated Membrane–Electrocoagulation System for Removal of Celestine Blue Dyes in Wastewater

et al. 2020

View full text Add to dashboard Cite

The textile industry provides for the needs of people especially in apparel and household items. The industry also discharges dye-containing wastewater that is typically challenging to treat. Despite the application of the biological and chemical treatments for the treatment of textile wastewater, these methods have their own drawbacks such as non-environment friendly, high cost and energy intensive. This research investigates the efficiency of the celestine blue dye removal from simulated textile wastewater by electrocoagulation (EC) method using iron (Fe) electrodes through an electrolytic cell, integrated with nylon 6,6 nanofiber (NF) membrane filtration for the separation of the flocculants from aqueous water. Based on the results, the integrated system achieves a high dye removal efficiency of 79.4%, by using 1000 ppm of sodium chloride as the electrolyte and 2 V of voltage at a constant pH of 7 and 10 ppm celestine blue dye solution, compared to the standalone EC method in which only 43.2% removal was achieved. Atomic absorption spectroscopy analysis was used to identify the traces of iron in the residual EC solution confirming the absence of iron. The EC-integrated membrane system thus shows superior performance compared to the conventional method whereby an additional 10–30% of dye was removed at 1 V and 2 V using similar energy consumptions.

show abstract

Section: Resultsmentioning

confidence: 99%

Integrated Membrane–Electrocoagulation System for Removal of Celestine Blue Dyes in Wastewater

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Halim et al [95,96] reported a simple approach of solvent vapor welding for electrospun Nylon 6.6 membranes intended for anti-fouling filtration membranes. Their methodology was comprised of exposing the Nylon 6.6 membranes to formic acid vapor at room temperature inside a vacuum chamber for 5, 12, 24, and 48 h, respectively.…”

Section: Solvent Welding Of Enmsmentioning

confidence: 99%

Post Processing Strategies for the Enhancement of Mechanical Properties of ENMs (Electrospun Nanofibrous Membranes): A Review

2021

View full text Add to dashboard Cite

Electrospinning is a versatile technique which results in the formation of a fine web of fibers. The mechanical properties of electrospun fibers depend on the choice of solution constituents, processing parameters, environmental conditions, and collector design. Once electrospun, the fibrous web has little mechanical integrity and needs post fabrication treatments for enhancing its mechanical properties. The treatment strategies include both the chemical and physical techniques. The effect of these post fabrication treatments on the properties of electrospun membranes can be assessed through either conducting tests on extracted single fiber specimens or macro scale testing on membrane specimens. The latter scenario is more common in the literature due to its simplicity and low cost. In this review, a detailed literature survey of post fabrication strength enhancement strategies adopted for electrospun membranes has been presented. For optimum effect, enhancement strategies have to be implemented without significant loss to fiber morphology even though fiber diameters, porosity, and pore tortuosity are usually affected. A discussion of these treatments on fiber crystallinity, diameters, and mechanical properties has also been produced. The choice of a particular post fabrication strength enhancement strategy is dictated by the application area intended for the membrane system and permissible changes to the initial fibrous morphology.

show abstract

“…A study was done by N.S. Halim et al (2018) on the effects of solvent vapour treatment on electrospun nylon 6,6 nanofibre membrane. The nylon 6,6 EMs was exposed to formic acid vapour at various durations (5, 12, 24, and 48 hours) at room temperature.…”

Section: The Effects Of Solvent Vapour Treatment To the Water Fluxmentioning

confidence: 99%

Methods in Improving the Mechanical Properties and Flux of Nanofibre Membranes for Water Filtration

Hami¹,

Affandi²,

Mohd³

et al. 2022

Preprint

View full text Add to dashboard Cite

Nanofibres have gained increasing attention due to their advantages of having a high porous structure, narrow pore size and distribution, and a high specific surface area. One of the most efficient techniques for producing nanofibres is via electrospinning. Nanofibres are currently being used in various fields, including water filtration. Although nanofibres possess the ability to filter various components, the fibres generally have a low mechanical strength that can mitigate the performance over time. Therefore, in overcoming this issue, several studies have focused on improving the strength of the nanofibre membranes for a water filtration application. This review discusses the advantages and challenges of nanofibres for water filtration membranes and summarises the methods to increase the strength of the membranes, including solvent vapour, thermal treatment, and chemical crosslinking.

show abstract

Effect of Solvent Vapor Treatment on Electrospun Nylon 6,6 Nanofiber Membrane

Cited by 6 publications

References 19 publications

Integrated Membrane–Electrocoagulation System for Removal of Celestine Blue Dyes in Wastewater

Integrated Membrane–Electrocoagulation System for Removal of Celestine Blue Dyes in Wastewater

Post Processing Strategies for the Enhancement of Mechanical Properties of ENMs (Electrospun Nanofibrous Membranes): A Review

Methods in Improving the Mechanical Properties and Flux of Nanofibre Membranes for Water Filtration

Contact Info

Product

Resources

About