Efficient separation of viscous emulsion through amphiprotic collagen nanofibers-based membrane

Ye, Xiaoxia; Xiao, Hanzhong; Wang, Yaping; Ke, Le; Luo, Wei; Huang, Xin; Shi, Bi

doi:10.1016/j.memsci.2019.117209

Cited by 26 publications

(10 citation statements)

References 19 publications

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“…(d) Change of the permeance with increasing cycle number. (e) Comparison of the separation performance between the as-prepared membrane in this work and those reported in literature. − ,− …”

Section: Resultsmentioning

confidence: 84%

Constructing Scalable Superhydrophobic Membranes for Ultrafast Water–Oil Separation

et al. 2021

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Superhydrophobic membranes are desirable for separation of water-in-oil emulsions, membrane distillation, and membrane condensation. However, the lack of large-scale manufacture methods of superhydrophobic membranes hampers their widespread applications. Here, a facile method of coaxial electrospinning is provided to manufacture superhydrophobic membranes for the ultrafast separation of waterin-oil emulsions. Under the high-voltage electric field, the polydimethylsiloxane (PDMS)-coated polyvinylidene fluoride (PVDF) nanofibers and PDMS microspheres with PVDF nanobulges were integrated together during the electrospinning process. Moreover, asymmetric composite membranes with selective layers are designed to reduce the resistance of the mass transfer. Consequently, the as-prepared asymmetric composite membrane exhibits an ultrafast permeance and excellent separation efficiency of about 99.6%, outperforming most of the state-of-the-art membranes reported previously. Most importantly, the membrane could be as large as 770 cm 2 , could be manufactured continuously, and could be easily enlarged further via tailoring the roller receptor, showing strong promise in the separation of water-in-oil emulsions.

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Section: Resultsmentioning

confidence: 84%

Constructing Scalable Superhydrophobic Membranes for Ultrafast Water–Oil Separation

et al. 2021

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“…Collagen membrane was also reported to successfully separate a variety of emulsion mixtures which remains a challenge because of the pore blocking caused by the low liquidity of viscous emulsion [30] . It showed good recycling and anti‐fouling capability.…”

Section: Types Of Biopolymers For Membrane Productionmentioning

confidence: 99%

Green and Non‐Conventional Materials for Membrane Synthesis: A Review

et al. 2022

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Membrane separation has been an upgrade in our quest for eco-friendly processes because of its minimal energy usage and lesser waste generation. However, the most widely used membranes are polymeric membranes. Most of these membranes are non-biodegradable and are replaced after deterioration/fouling and then discarded. Dumping without treatment on a large scale is a significant environmental problem. Green polymers only make up a limited percentage of all the new materials that are reported every year. We require more research in developing renewable, inexpensive membranes from waste materials to ensure progress with the least toll on the environment. Several reported green methods can partially achieve green synthesis. This ensures the least use of nonbiodegradable polymers in membranes. This review will emphasize the exploration of more natural materials given the target is to fabricate membranes in a way, where both raw material and membrane preparation are green.

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“…These sensors displayed multi‐dimensional recognition including compression and humidity responses with broad dynamic response ranges, potentially serving as wearable smart devices [ 256 ] (Figure 21E). Leather consists of natural collagen fibers, thus, a series of leather‐based materials was developed for flame retardancy, [ 262 ] energy storage, [ 263 ] emulsion separations [ 264 ] and X‐ray shielding materials. [ 265 ] Leather processing with cattle hide resulted in flame retardant modifiers for polymer materials.…”

Section: Construction and Applications Of Biopolymer‐based Materials mentioning

confidence: 99%

“…[ 263 ] Chrome tanned split‐leather achieved effective separation for a variety of viscous emulsions (≈77.3–200.0 mPa·s), comparable to commercial single‐sided polytetrafluoroethylene and single‐sided polyvinylidene fluoride sieving membranes (Figure 22E–J). [ 264 ] The fibrous morphology, hierarchical structure, and surface‐reactivity of collagen fibers benefit these native collagen mesostructures as bio‐templates, supporting matrix, and immobilization carriers. Individual collagen micro/nanofibers also can be developed for applications including catalysis, [ 266 ] adsorption, [ 267 ] electrode materials, [ 268 ] and carbon materials.…”

Section: Construction and Applications Of Biopolymer‐based Materials mentioning

confidence: 99%

Biopolymer Nanoscale Assemblies as Building Blocks for New Materials: A Review

Pei

Wang

Tang

et al. 2021

Adv Funct Materials

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Biopolymers, a class of fascinating polymers from biomass provide sustainability, biodegradability, availability, biocompatibility, and unique properties. A ubiquitous feature of biopolymers is their hierarchical structure, with the presence of well‐organized structures from the nanoscale to macroscopic dimensions. This structural organization endows biopolymers with toughness, defect resistance, and bucking adaptability. To retain these inherent structural features, nano‐structural assemblies isolated from biomass have been applied as building blocks to construct new biopolymer‐based materials. This top‐down processing strategy is distinct from the more traditional molecular‐level bottom‐up design and assembly approach for new materials. In this review, the hierarchical structures of several representative biopolymers (cellulose, chitin, silk, collagen) are introduced with a focus on these nanoscale building blocks, as well as highlighting the similarities and differences in the respective chemistries and structures. Recent progress in production strategies of these natural building blocks are summarized, covering methods and treatments used for isolations. Finally, approaches and emerging applications of biopolymer‐based materials using these natural nano‐ and meso‐scale building blocks are demonstrated in areas of biomedicine, electronics, environmental, packaging, sensing, foods, and cosmetics.

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Efficient separation of viscous emulsion through amphiprotic collagen nanofibers-based membrane

Cited by 26 publications

References 19 publications

Constructing Scalable Superhydrophobic Membranes for Ultrafast Water–Oil Separation

Constructing Scalable Superhydrophobic Membranes for Ultrafast Water–Oil Separation

Green and Non‐Conventional Materials for Membrane Synthesis: A Review

Biopolymer Nanoscale Assemblies as Building Blocks for New Materials: A Review

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