Effect of ion-exchange nanofiber fabrics on water splitting in bipolar membrane

Wakamatsu, Yuji; Matsumoto, Hidetoshi; Minagawa, Mie; Tanioka, Akihiko

doi:10.1016/j.jcis.2006.03.077

Cited by 29 publications

(21 citation statements)

References 15 publications

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“…It is widely used in dyes, precious metals, protein pharmaceuticals and other high value-added materials during the enrichment and purification; it is also used in wastewater and gas decontamination processes. The potential benefits and value to researchers cannot be overlooked [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of electrospun polyacrylonitrile ion-exchange membranes for application in lysozyme adsorption

Chiu¹,

Lin²,

Cheng³

et al. 2011

Express Polym. Lett.

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Abstract. Ion exchange (IEX) chromatography is commonly used in separation and purification systems. However, micropore blockage within its resin structure can easily lead to a reduction in the effectiveness of purification. To tackle this problem, we adopted the concept of membrane separation by combining electrospinning techniques with rapid alkaline hydrolysis to prepare a weak acid IEX nanofibrous membrane (AEA-COOH), consisting of polyethyleneterephthalate (PET) meltblown fabric as a supporting layer, with upper and lower IEX layers consisting of polyacrylonitrile (PAN) nanofibrous membranes. To determine the characteristics of the AEA-COOH membrane, we used the commercial product Sartobind® C IEX membrane as the standard of comparison. Results showed that the base weight and thickness of AEA-COOH were 33 and 64%, relative to Sartobind ® C membrane. The thermo-degradable temperature of AEA-COOH membrane (320°C) was far higher than that of Sartobind ® C (115°C), indicating high thermal stability. Finally, comparisons between the lysozyme adsorption rates and capacity of various IEX membranes confirmed that AEA-COOH was lighter, thinner, faster, possessing higher protein adsorption efficiency than Sartobind ® C membrane.

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Section: Introductionmentioning

confidence: 99%

Fabrication of electrospun polyacrylonitrile ion-exchange membranes for application in lysozyme adsorption

Chiu¹,

Lin²,

Cheng³

et al. 2011

Express Polym. Lett.

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show abstract

“…Our previous papers reported the preparation of ion-exchange fiber fabrics from biological and synthetic polymers [8,9] and their good catalytic activity [10]. An analysis of the surface charge of the nanofiber fabric is essential to improving the performance of the fabric, such as its separation properties and adsorption behavior.…”

Section: Introductionmentioning

confidence: 99%

Characterization of chitosan nanofiber fabric by electrospray deposition: Electrokinetic and adsorption behavior

Matsumoto

Yako

Minagawa

et al. 2007

Journal of Colloid and Interface Science

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“…In our previous study, the anion-exchange NFMs, i.e. , quaternized P4VP NFMs (see Table 2 and Figure 6c), were used as the intermediate layer of the BPM [28]. Figure 9b shows the current–voltage characteristics of the BPMs with the NFM installed (closed squares) and without any (open squares) in the intermediate region under reverse bias conditions.…”

Section: Ion-exchangersmentioning

confidence: 99%

Functionality in Electrospun Nanofibrous Membranes Based on Fiber’s Size, Surface Area, and Molecular Orientation

2011

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Electrospinning is a versatile method for forming continuous thin fibers based on an electrohydrodynamic process. This method has the following advantages: (i) the ability to produce thin fibers with diameters in the micrometer and nanometer ranges; (ii) one-step forming of the two- or three-dimensional nanofiber network assemblies (nanofibrous membranes); and (iii) applicability for a broad spectrum of molecules, such as synthetic and biological polymers and polymerless sol-gel systems. Electrospun nanofibrous membranes have received significant attention in terms of their practical applications. The major advantages of nanofibers or nanofibrous membranes are the functionalities based on their nanoscaled-size, highly specific surface area, and highly molecular orientation. These functionalities of the nanofibrous membranes can be controlled by their fiber diameter, surface chemistry and topology, and internal structure of the nanofibers. This report focuses on our studies and describes fundamental aspects and applications of electrospun nanofibrous membranes.

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Effect of ion-exchange nanofiber fabrics on water splitting in bipolar membrane

Cited by 29 publications

References 15 publications

Fabrication of electrospun polyacrylonitrile ion-exchange membranes for application in lysozyme adsorption

Fabrication of electrospun polyacrylonitrile ion-exchange membranes for application in lysozyme adsorption

Characterization of chitosan nanofiber fabric by electrospray deposition: Electrokinetic and adsorption behavior

Functionality in Electrospun Nanofibrous Membranes Based on Fiber’s Size, Surface Area, and Molecular Orientation

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