NDLI: Hierarchical porous carbon nanofibrous membranes with an enhanced shape memory property for effective adsorption of proteins

Content Provider	Royal Society of Chemistry (RSC)
Author	Ding, Bin El-Newehy, Mohamed Ge, Jianlong Al-Deyab, Salem S. Kim, Hak-Yong Fan, Gang Yu, Jianyong
Copyright Year	2015
Abstract	Designing and fabricating hierarchical porous carbon nanofibrous (CNF) membranes with good mechanical properties is an attractive and challenging work for the next generation of functional separation materials. Here, we demonstrate a novel strategy to create a heterostructured CNF membrane with multiscale pores via multicomponent electrospinning and nano-doping methods. The resultant membrane exhibits an intriguing shape memory property, which can be bent to a radius < 100 μm without any fracture and recover from the deformation rapidly. Besides that, the carbonaceous nanofibrous membrane is quite soft like polymer based wrapping paper. Such robust mechanical properties may be attributed to the “plasticizer” effect of the doped SiO2 nanoparticles and the protogenetic graphitized carbon layers in the carbon matrix. More interesting, benefitting from the functional nitrogenous groups and the hierarchical porous structures, these CNF membranes possess a high adsorption capacity for target protein molecules and high water permeability (15 202 ± 1927 L m−2 h−1 under 3 kPa driven pressure), which is an order of magnitude higher than the commercial polymer based affinity membranes. As this technology is effective and easy to operate, more multifunctional CNF based nanoscale materials could be developed for the next generation of highly efficient proteins separations.
Starting Page	64318
Ending Page	64325
Page Count	8
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	5
Issue Number	79
Journal	RSC Advances
DOI	10.1039/c5ra11627a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Plasticizer Adsorption Micrometre Permeation Electrospinning Polymer CNF Carbon Shape-memory alloy Composite material Protein Pascal (unit)
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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