Robust braid reinforced hollow fiber membranes for organic solvent nanofiltration (OSN)

Wang, Zhenyuan; Ren, Feng; Wang, Weijian; Sun, Yuxuan; Tao, Shengnan; Wang, Yimeng; Chen, Ya‐Feng; Fu, Zheng‐Jun; Cao, Xun; Sun, Shi‐Peng; Xing, Weihong

doi:10.1016/j.advmem.2021.100007

Cited by 15 publications

(12 citation statements)

References 29 publications

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“…Because of the inherent properties of polymeric membrane materials, ISA HF OSN membranes are difficult to operate at higher pressures [ 51 ], which limits their commercial application. Wang et al [ 87 ] prepared braid-reinforced P84 HF OSN membranes with a stable working pressure three times that of traditional P84 HF OSN membranes by coating P84 PI dope solution on high-strength polyester (PET) braid support. Zhao et al [ 19 ] prepared braid reinforced PBI HF OSN membranes via a similar process.…”

Section: Structures and Preparation Methods Of Hf Osn Membranesmentioning

confidence: 99%

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Hollow Fiber Membrane for Organic Solvent Nanofiltration: A Mini Review

Liu

Wang

et al. 2022

Membranes

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Organic solvents take up 80% of the total chemicals used in pharmaceutical and related industries, while their reuse rate is less than 50%. Traditional solvent treatment methods such as distillation and evaporation have many disadvantages such as high cost, environmental unfriendliness, and difficulty in recovering heat-sensitive, high-value molecules. Organic solvent nanofiltration (OSN) has been a prevalent research topic for the separation and purification of organic solvent systems since the beginning of this century with the benefits of no-phase change, high operational flexibility, low cost, as well as environmental friendliness. Especially, hollow fiber (HF) OSN membranes have gained a lot of attention due to their high packing density and easy scale-up as compared with flat-sheet OSN membranes. This paper critically reviewed the recent research progress in the preparation of HF OSN membranes with high performance, including different materials, preparation methods, and modification treatments. This paper also predicts the future direction of HF OSN membrane development.

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Section: Structures and Preparation Methods Of Hf Osn Membranesmentioning

confidence: 99%

“…Coating is a commonly used method for surface modification of HF OSN membranes. The popular method is coating on the surface of ceramic [ 50 , 89 , 90 ] and polymer [ 18 , 19 , 39 , 62 , 77 , 87 , 90 ] substrates.…”

Section: Treatment Methods Of Hf Osn Membranesmentioning

confidence: 99%

Hollow Fiber Membrane for Organic Solvent Nanofiltration: A Mini Review

Liu

Wang

et al. 2022

Membranes

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“…The fine chemical and pharmaceutical industries manufacture a large amount of consumer products and pharmaceuticals, which involves a high volume of organic solvents. 1–3 Large quantities of organic solvent waste are generated during these manufacturing processes. Organic solvents account for 80% of wastes generated by typical pharmaceutical processes, 2,4 placing a huge burden on the environment and operating costs.…”

Section: Introductionmentioning

confidence: 99%

Electropolymerized thin films with a microporous architecture enabling molecular sieving in harsh organic solvents under high temperature

et al. 2022

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“…7−9 Based on the differences in membrane structures, NF membranes can be divided into two categories: flat-sheet and hollow-fiber type. 10,11 Among them, the flat-sheet thin-film composite (TFC) membranes with an ultrathin polyamide (PA)-rejecting layer fabricated atop polymer UF supports are state-of-art NF membranes in practical applications due to their excellent separation efficiencies and tailored fabrication processes. 12,13 TFC NF membranes are commonly composed of three layers: a nonwoven fabric backing layer, a porous polymer sublayer, and a PA-separating layer.…”

Section: Introductionmentioning

confidence: 99%

“…Membrane-based technologies are considered advanced and efficient approaches to alleviating global water scarcity. − Nanofiltration (NF) membranes, whose behaviors are between ultrafiltration (UF) and reverse osmosis (RO), selectively desalinate water and remove organic matter through steric hindrance and electrostatic interactions. − Until now, NF-based membrane technologies have been broadly applied in brackish water desalination, wastewater recycling, and advanced purification of drinking water. − Based on the differences in membrane structures, NF membranes can be divided into two categories: flat-sheet and hollow-fiber type. , Among them, the flat-sheet thin-film composite (TFC) membranes with an ultrathin polyamide (PA)-rejecting layer fabricated atop polymer UF supports are state-of-art NF membranes in practical applications due to their excellent separation efficiencies and tailored fabrication processes. , …”

Section: Introductionmentioning

confidence: 99%

Poly(vinylidene fluoride) Substrate-Supported Polyamide Membrane for High-Temperature Water Nanofiltration

Zhu

Cheng

et al. 2022

ACS Appl. Polym. Mater.

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Conventional polysulfone and polyethersulfone membrane-supported polyamide (PA) nanofiltration (NF) membranes suffer an obvious performance decline due to the drastic pore shrinkage of their membranes during high-temperature (HT) desalination processes. Herein, a thermally stable PA NF membrane (PVDF-IP-2) was successfully constructed over a relatively hydrophobic polyvinylidene fluoride (PVDF) membrane using a continuous interfacial polymerization (CIP) method. The PVDF-IP-2 membrane had a moderate water permeance of 8.3 L m–2 h–1 bar–1 and a 99.7% Na2SO4 rejection at room temperature, which were comparable to those of commercial NF membranes. Introducing calcium ions (Ca2+) into the aqueous solutions further confined the transport rate of the piperazine monomer across the reaction interface through the coordination functions between Ca2+ and piperazine molecules, forming a high-flux (15.9 L m–2 h–1 bar–1 at room temperature) NF membrane (PVDF-IP-Ca) with an excellent Na2SO4 rejection (∼98.6%). Impressively, the PVDF-IP-Ca membrane presented an excellent antifouling behavior and performance stability during both fouling and high-temperature filtration tests. The Ca2+-assisted IP (Ca–CIP) strategy is expected to be a facile and universal approach to preparing TFC desalination membranes for HT environmental applications on relatively hydrophobic supports.

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Robust braid reinforced hollow fiber membranes for organic solvent nanofiltration (OSN)

Cited by 15 publications

References 29 publications

Hollow Fiber Membrane for Organic Solvent Nanofiltration: A Mini Review

Hollow Fiber Membrane for Organic Solvent Nanofiltration: A Mini Review

Electropolymerized thin films with a microporous architecture enabling molecular sieving in harsh organic solvents under high temperature

Poly(vinylidene fluoride) Substrate-Supported Polyamide Membrane for High-Temperature Water Nanofiltration

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