title: Oriented Clay Nanotube Membrane Assembled on Microporous Polymeric Substrates.
abstract: Organized arrays of halloysite clay nanotubes have great potential in molecular separation, absorption, and biomedical applications. A highly oriented layer of halloysite on polyacrylonitrile porous membrane was prepared via a facile evaporation-induced method. Scanning electronic microscopy, surface attenuated total reflection Fourier transform infrared spectroscopy, and energy dispersive X-ray spectroscopy mapping indicated formation of the nanoarchitecture-controlled membrane. The well-ordered nanotube coating allowed for the excellent dye rejection (97.7% for reactive black 5) with high salt permeation (86.5% for aqueous NaCl), and thus these membranes were suitable for dye purification or concentration. These well-aligned nanotubes' composite membranes also showed very good fouling resistance against dye accumulation and bovine serum albumin adsorption as compared to the pristine polyacrylonitrile or membrane coated with disordered halloysite layer.
authors.affiliation: School of Chemical Engineering and Energy, Zhengzhou University , Zhengzhou 450001, China.
authors.forename: Lijuan
authors.initials: L
authors.lastname: Qin
authors.affiliation: School of Chemical Engineering and Energy, Zhengzhou University , Zhengzhou 450001, China.
authors.forename: Yafei
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: School of Chemical Engineering and Energy, Zhengzhou University , Zhengzhou 450001, China.
authors.forename: Jindun
authors.initials: J
authors.lastname: Liu
authors.affiliation: UNESCO Centre for Membrane Science and Technology, University of New South Wales , Sydney, Australia.
authors.forename: Jingwei
authors.initials: J
authors.lastname: Hou
authors.affiliation: School of Chemical Engineering and Energy, Zhengzhou University , Zhengzhou 450001, China.
authors.forename: Yatao
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Chemical Engineering and Energy, Zhengzhou University , Zhengzhou 450001, China.|Department of Chemical Engineering, KU Leuven , Heverlee, Belgium.
authors.forename: Jing
authors.identifier: http://orcid.org/0000-0001-8549-852X
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Chemical Engineering, KU Leuven , Heverlee, Belgium.
authors.forename: Junyong
authors.initials: J
authors.lastname: Zhu
authors.affiliation: School of Chemical Engineering and Energy, Zhengzhou University , Zhengzhou 450001, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Institute for Micromanufacturing, Louisiana Tech University , Ruston, Louisiana 71270, United States.|I. Gubkin Russian State University of Oil and Gas , Moscow 119991, Russia.
authors.forename: Yuri
authors.identifier: http://orcid.org/0000-0003-0722-5643
authors.initials: Y
authors.lastname: Lvov
authors.affiliation: Department of Chemical Engineering, KU Leuven , Heverlee, Belgium.
authors.forename: Bart
authors.initials: B
authors.lastname: Van der Bruggen
keywords: antifouling; composite membranes; controlled thickness; oriented halloysite nanotubes; self-assembly