Recent developments in polymeric electrospun nanofibrous membranes for seawater desalination

Selatile, Mantsopa Koena; Ray, Suprakas Sinha; Ojijo, Vincent; Sadiku, Rotimi

doi:10.1039/c8ra07489e

Cited by 69 publications

(20 citation statements)

References 128 publications

(235 reference statements)

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“…The main factors categorizing these membrane processes are pore size of the membrane and the magnitude of the applied transmembrane pressure (TMP). Generally, the pore size of the pressure driven membranes decreases in the order from MF to RO, while the operational TMP value increases from MF to RO [ 55 ].…”

Section: Membrane Processes Based On Various Separation Driving Forcesmentioning

confidence: 99%

Fouling Prevention in Polymeric Membranes by Radiation Induced Graft Copolymerization

2022

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The application of membrane processes in various fields has now undergone accelerated developments, despite the presence of some hurdles impacting the process efficiency. Fouling is arguably the main hindrance for a wider implementation of polymeric membranes, particularly in pressure-driven membrane processes, causing higher costs of energy, operation, and maintenance. Radiation induced graft copolymerization (RIGC) is a powerful versatile technique for covalently imparting selected chemical functionalities to membrane surfaces, providing a potential solution to fouling problems. This article aims to systematically review the progress in modifications of polymeric membranes by RIGC of polar monomers onto membranes using various low- and high-energy radiation sources (UV, plasma, γ-rays, and electron beam) for fouling prevention. The feasibility of the modification method with respect to physico-chemical and antifouling properties of the membrane is discussed. Furthermore, the major challenges to the modified membranes in terms of sustainability are outlined and the future research directions are also highlighted. It is expected that this review would attract the attention of membrane developers, users, researchers, and scientists to appreciate the merits of using RIGC for modifying polymeric membranes to mitigate the fouling issue, increase membrane lifespan, and enhance the membrane system efficiency.

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Section: Membrane Processes Based On Various Separation Driving Forcesmentioning

confidence: 99%

Fouling Prevention in Polymeric Membranes by Radiation Induced Graft Copolymerization

2022

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“…[55,56,58,59] The morphology of the resulting fibers depends on numerous factors, which include solution properties such as solvent type (Figure 3), flow rates (Figure 4), solution conductivity, viscosity, and concentration (Figure 5). [60][61][62] The operating parameters such as applied voltage and current also affect the fiber size, [57,63,64] Figure 6. Salama et al [65] noticed a decrease in fiber diameter of electrospun cellulose acetate (CA) containing CNT at various concentrations when power voltage was increased.…”

Section: Electrospinningmentioning

confidence: 99%

A review on the processing–morphology–property relationship in biodegradable polymer composites containing carbon nanotubes and nanofibers

Motloung

Mofokeng

Ojijo

et al. 2021

Polymer Engineering & Sci

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Carbon nanofillers containing biodegradable polymer composites have become an emerging frontier in materials science and engineering because of their potential as environmentally friendly materials in multiple applications, from load-bearing to advanced packaging to biomedical applications. Herein, we present the effect of processing parameters on the final morphology and the resulting properties of the biodegradable polymer composites containing carbon nanotubes (CNTs) or carbon nanofibers (CNFs). Various strategies can be employed to develop such composites; however, the type of morphology, which results during processing, significantly affects the final properties of the obtained composites. Therefore, various processing strategies such as meltblending, additive manufacturing, and electrospinning are critically reviewed, together with the potential applications in load-bearing, tissue engineering, electromagnetic shielding, gas sensing, and packaging. Finally, we discuss the existing challenges and future directions in designing CNTs/CNFs containing biodegradable polymer composites with desired properties.

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“…This method allows the formation of interconnected and uniform pore size that is favourable in producing highly porous membrane structures [34]. It is usually applied to form a nanofibrous porous support layer prior to the non-porous active layer (PA layer) to obtain RO membrane with appreciable performance in salt rejection and water permeability [35]. The advantages of using this nanofibrous material as a support layer for RO membrane are its high surface area to volume ratio, low start-up cost, variety of polymers and materials selection and potential of fiber functionalization [36].…”

Section: B Electrospinningmentioning

confidence: 99%

Polymeric Reverse Osmosis and Forward Osmosis Membranes for Water Desalination

Ang

2021

Materials Research Foundations

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Polymeric reverse osmosis (RO) and forward osmosis (FO) membranes have been predominantly used in membrane applications for water desalination. The membrane science has advanced in the past decades and various efforts have been employed to improve the membrane characteristics for enhanced water flux and impurities rejection capability. In this chapter, the progress of RO and FO membranes has been discussed in three sections: synthesis methods of RO and FO membranes, modification works done on the membranes and the formulation used for the synthesis of RO and FO membranes, with particular interest given to the incorporation of nanoparticles in the synthesis of thin film composite membrane.

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Recent developments in polymeric electrospun nanofibrous membranes for seawater desalination

Abstract: Seawater desalination is a promising strategy that offers an abundant and reliable source of clean fresh water.

Cited by 69 publications

References 128 publications

Fouling Prevention in Polymeric Membranes by Radiation Induced Graft Copolymerization

Fouling Prevention in Polymeric Membranes by Radiation Induced Graft Copolymerization

A review on the processing–morphology–property relationship in biodegradable polymer composites containing carbon nanotubes and nanofibers

Polymeric Reverse Osmosis and Forward Osmosis Membranes for Water Desalination

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