Hydrophilic nanofibrous composite membrane prepared by melt-blending extrusion for effective separation of oil/water emulsion

Xu, Dandan; Zheng, Xiaoting; Xiao, Ru

doi:10.1039/c6ra26068c

Cited by 26 publications

(5 citation statements)

References 46 publications

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“…The water contact angle is an important parameter in determining the wettability property of any material . Figure illustrates the water contact angles of CH/PVP/MCM‐41 composite hydrogel films with various MCM‐41 content.…”

Section: Resultsmentioning

confidence: 99%

Chitosan/Polyvinylpyrrolidone/MCM‐41 Composite Hydrogel Films: Structural, Thermal, Surface, and Antibacterial Properties

et al. 2018

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The aim of this study is to characterize and investigate the effects of the Mobil Composition of Matter No. 41 (MCM-41) concentrations (0.5, 1, 3, 5, and 10 wt%) on structural, thermal, wettability, water content, oxygen (O 2 ) permeability, and swelling properties as well as morphological characteristics of chitosan/polyvinylpyrrolidone/MCM-41 (CH/PVP/MCM-41) composite hydrogel films. In addition, hydrolytic degradability, optic transmittance, and antibacterial properties of composite hydrogels films are determined as in vitro. With increasing of MCM-41 content, the composite hydrogels showed higher thermal stability, as expected. The morphologic properties of the composite hydrogel films are studied using scanning electron microscope (SEM) technique that provide evidence for good miscibility of CH, PVP, and MCM-41. The swelling and water-absorbing properties of the composite hydrogel films are significantly improved because of enhanced hydrophilic profile. Furthermore, the antimicrobial properties of the prepared composite hydrogel films are studied against Bacillus subtilis, Escherichia coli, and Candida albicans yeast. The results showed excellent antibacterial behavior of the composite hydrogel films. The study clearly demonstrates that the prepared CH/PVP/MCM-41 composite hydrogel films may be used as a promising candidate material in various fields such as drug delivery, wound healing material, and adsorbent materials.

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Section: Resultsmentioning

confidence: 99%

Chitosan/Polyvinylpyrrolidone/MCM‐41 Composite Hydrogel Films: Structural, Thermal, Surface, and Antibacterial Properties

et al. 2018

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“…The methodology involves the deposition of a hydrophilic polymer layer on the surface of a membrane (flat or hollow fiber) formed, as a rule, from a hydrophobic synthetic polymer. The formation of the surface layer is carried out in various ways: immersion [ 59 ], dipping [ 60 ], sputtering [ 61 ], and the introduction of appropriate additives into the precipitation bath during membrane formation [ 62 , 63 ]. An interesting approach to surface treatment is the plasma treatment of membranes [ 64 ].…”

Section: Commercial Polymer Membranesmentioning

confidence: 99%

Polymeric Membranes for Oil-Water Separation: A Review

et al. 2022

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This review is devoted to the application of bulk synthetic polymers such as polysulfone (PSf), polyethersulfone (PES), polyacrylonitrile (PAN), and polyvinylidene fluoride (PVDF) for the separation of oil-water emulsions. Due to the high hydrophobicity of the presented polymers and their tendency to be contaminated with water-oil emulsions, methods for the hydrophilization of membranes based on them were analyzed: the mixing of polymers, the introduction of inorganic additives, and surface modification. In addition, membranes based on natural hydrophilic materials (cellulose and its derivatives) are given as a comparison.

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“…A comparison of different nanofiber production techniques is summarized in Table 2 . To date, the electrospinning technique is the most applied to produce nanofiber membranes for the oil/water separation [ 18 ], followed by melt-blowing [ 19 ] and melt-blending extrusion [ 20 ].…”

Section: An Overview Of Nanofiber Production Techniquesmentioning

confidence: 99%

“…The dispersed phase is stretched into nanofibers and the nanofiber membrane is obtained after removing the matrix phase. The diameters of the nanofibers range from 60 to 900 nm [ 20 , 53 ].…”

Section: An Overview Of Nanofiber Production Techniquesmentioning

confidence: 99%

An Overview of Recent Progress in Nanofiber Membranes for Oily Wastewater Treatment

Sarbatly

Chiam

2022

Nanomaterials

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Oil separation from water becomes a challenging issue in industries, especially when large volumes of stable oil/water emulsion are discharged. The present short review offers an overview of the recent developments in the nanofiber membranes used in oily wastewater treatment. This review notes that nanofiber membranes can efficiently separate the free-floating oil, dispersed oil and emulsified oil droplets. The highly interconnected pore structure nanofiber membrane and its modified wettability can enhance the permeation flux and reduce the fouling. The nanofiber membrane is an efficient separator for liquid–liquid with different densities, which can act as a rejector of either oil or water and a coalescer of oil droplets. The present paper focuses on nanofiber membranes’ production techniques, nanofiber membranes’ modification for flux and separation efficiency improvement, and the future direction of research, especially for practical developments.

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Hydrophilic nanofibrous composite membrane prepared by melt-blending extrusion for effective separation of oil/water emulsion

Abstract: EVOH nanofiber membrane was prepared by melt blending extrusion and high-speed airflow deposition. Then NCC/EVOH nanofiber composite membranes were obtained via coating and deposition the barrier layer on the surface of the nanofiber membrane for oil/water separation.

Cited by 26 publications

References 46 publications

Chitosan/Polyvinylpyrrolidone/MCM‐41 Composite Hydrogel Films: Structural, Thermal, Surface, and Antibacterial Properties

Chitosan/Polyvinylpyrrolidone/MCM‐41 Composite Hydrogel Films: Structural, Thermal, Surface, and Antibacterial Properties

Polymeric Membranes for Oil-Water Separation: A Review

An Overview of Recent Progress in Nanofiber Membranes for Oily Wastewater Treatment

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