Functionalized boron nitride membranes with ultrafast solvent transport performance for molecular separation
TLDR
An amino functionalized boron nitride (FBN) based filtration membrane with a nanochannel network for molecular separation and permeation and shows high transport performance for solvents depending on the membranes’ thickness is reported.Abstract:
Pressure-driven, superfast organic solvent filtration membranes have significant practical applications. An excellent filtration membrane should exhibit high selectivity and permeation in aqueous and organic solvents to meet increasing industrial demand. Here, we report an amino functionalized boron nitride (FBN) based filtration membrane with a nanochannel network for molecular separation and permeation. This membrane is highly stable in water and in several organic solvents and shows high transport performance for solvents depending on the membranes' thickness. In addition, the FBN membrane is applicable for solute screening in water as well as in organic solvents. More importantly, the FBN membranes are very stable in acidic, alkaline and oxidative media for up to one month. The fast-flow rate and good separation performance of the FBN membranes can be attributed to their stable networks of nanochannels and thin laminar structure, which provide the membranes with beneficial properties for practical separation and purification processes.read more
Citations
More filters
Journal ArticleDOI
Ultrathin Two-Dimensional Membranes Assembled by Ionic Covalent Organic Nanosheets with Reduced Apertures for Gas Separation
Yunpan Ying,Minman Tong,Shoucong Ning,Sai Kishore Ravi,Shing Bo Peh,Swee Ching Tan,Stephen J. Pennycook,Dan Zhao +7 more
TL;DR: The fabrication of ultrathin two-dimensional membranes through Layer-by-Layer assembly of two kinds of ionic covalent organic nanosheets (iCONs) with different pore sizes and opposite charges is reported, providing not only a high-performance H2 separation membrane candidate but also an inspiration for pore engineering of COF or 2D porous polymer membranes.
Journal ArticleDOI
Two-dimensional nanochannel membranes for molecular and ionic separations
Shaofei Wang,Shaofei Wang,Leixin Yang,Guangwei He,Guangwei He,Benbing Shi,Yifan Li,Yifan Li,Hong Wu,Runnan Zhang,Suzana Pereira Nunes,Zhongyi Jiang,Zhongyi Jiang +12 more
TL;DR: The emerging top-down and bottom-up methods to synthesize high-quality 2D nanosheets and to prepare high-performance 2DNCMs are discussed and the strategies for regulating the physical and chemical microenvironments in the nanochannels are emphasized.
Journal ArticleDOI
2D Nanosheets and Their Composite Membranes for Water, Gas, and Ion Separation.
TL;DR: Recent progress in nanosheet membranes has included modification by crosslinking and functionalization that has improved the stability of the membranes, their separation functionality, and the scalability of membrane formation while the membranes’ excellent molecular transport properties are retained.
Journal ArticleDOI
2D Laminar Membranes for Selective Water and Ion Transport
Journal ArticleDOI
Artificial channels for confined mass transport at the sub-nanometre scale
TL;DR: In this paper, the authors highlight synthetic-nanomaterials-enabled channels in the platforms of well-defined nanopores, 1D nanotubes and 2D nanochannels, and discuss their design principles, channel architectures and membrane or device fabrication.
References
More filters
Journal ArticleDOI
Unimpeded permeation of water through helium-leak-tight graphene-based membranes.
TL;DR: Submicrometer-thick membranes made from graphene oxide can be completely impermeable to liquids, vapors, and gases, including helium, but these membranes allow unimpeded permeation of water (H2O permeates through the membranes at least 1010 times faster than He).
Journal ArticleDOI
Large Scale Growth and Characterization of Atomic Hexagonal Boron Nitride Layers
Li Song,Lijie Ci,Hao Lu,Pavel B. Sorokin,Chuanhong Jin,Jie Ni,Alexander G. Kvashnin,Dmitry G. Kvashnin,Jun Lou,Boris I. Yakobson,Pulickel M. Ajayan +10 more
TL;DR: The large area synthesis of h-BN films consisting of two to five atomic layers, using chemical vapor deposition, show a large optical energy band gap of 5.5 eV and are highly transparent over a broad wavelength range.
Journal ArticleDOI
Precise and Ultrafast Molecular Sieving Through Graphene Oxide Membranes
Rakesh Joshi,Paola Carbone,FengChao Wang,Vasyl G. Kravets,Yang Su,Irina V. Grigorieva,HengAn Wu,Andre K. Geim,Rahul R. Nair +8 more
TL;DR: This work investigates permeation through micrometer-thick laminates prepared by means of vacuum filtration of graphene oxide suspensions, which reveal that the GO membrane can attract a high concentration of small ions into the membrane, which may explain the fast ion transport.
Journal ArticleDOI
Boron Nitride Nanotubes and Nanosheets
Dmitri Golberg,Yoshio Bando,Yang Huang,Takeshi Terao,Masanori Mitome,Chengchun Tang,Chunyi Zhi +6 more
TL;DR: This review gives an introduction to the rich BN nanotube/nanosheet field, including the latest achievements in the synthesis, structural analyses, and property evaluations, and presents the purpose and significance of this direction in the light of the general nanotubes/ nanosheet developments.
Journal ArticleDOI
Surface Modifications for Antifouling Membranes
D. Rana,Takeshi Matsuura +1 more
TL;DR: This Review surveys the latest efforts in which the reduction of irreversible fouling is attempted by the modification of the membrane surface.