Journal ArticleDOI
High-Flux Graphene Oxide Nanofiltration Membrane Intercalated by Carbon Nanotubes
Han Yi,Yanqiu Jiang,Chao Gao +2 more
TLDR
Both G-CNTm and GNm possessed excellent antifouling performance for SA and HA but inferior for BSA because of the strong interaction between protein and graphene sheets.Abstract:
A sort of novel high-flux nanofiltration membrane was fabricated by synergistic assembling of graphene and multiwalled carbon nanotubes (MWNTs), in which graphene played the role of molecular sieving and MWNTs expanded the interlayer space between neighbored graphene sheets. The MWNT-intercalated graphene nanofiltration membrane (G-CNTm) showed a water flux up to 11.3 L m(-2) h(-1) bar(-1), more than 2 times that of the neat graphene nanofiltration membrane (GNm), while keeping high dye rejection (>99% for Direct Yellow and >96% Methyl Orange). The G-CNTm also showed good rejection ratio for salt ions (i.e., 83.5% for Na2SO4, 51.4% for NaCl). We also explored the antifouling performance of G-CNTm and GNm with bovine serum albumin (BSA), sodium alginate (SA) and humic acid (HA). Both G-CNTm and GNm possessed excellent antifouling performance for SA and HA but inferior for BSA because of the strong interaction between protein and graphene sheets.read more
Citations
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Journal ArticleDOI
Two-Dimensional-Material Membranes: A New Family of High-Performance Separation Membranes.
TL;DR: These are the latest ground-breaking studies in 2D-material membranes as nanosheet and laminar membranes, with a focus on starting materials, nanostructures, and transport properties.
Journal ArticleDOI
Recent Developments in Graphene-Based Membranes: Structure, Mass-Transport Mechanism and Potential Applications.
TL;DR: The latest developments on understanding mass transport through graphene-based membranes, including perfect graphene lattice, nanoporous graphene and graphene oxide membranes are reviewed here in relation to their potential applications to enable researchers to better understand the mass-transport mechanism.
Journal ArticleDOI
Nanoparticle-templated nanofiltration membranes for ultrahigh performance desalination
Zhenyi Wang,Zhenyi Wang,Zhangxin Wang,Shihong Lin,Huile Jin,Shoujian Gao,Yuzhang Zhu,Jian Jin +7 more
TL;DR: The fabrication of a TFC NF membrane with a crumpled polyamide (PA) layer via interfacial polymerization on a single-walled carbon nanotubes/polyether sulfone composite support loaded with nanoparticles as a sacrificial templating material is reported, yielding an overall desalination performance superior to state-of-the-art NF membranes reported so far.
Journal ArticleDOI
Superstructured Assembly of Nanocarbons: Fullerenes, Nanotubes, and Graphene
Journal ArticleDOI
Recent advances in nanomaterials for water protection and monitoring.
Rasel Das,Chad D. Vecitis,Agnes Schulze,Bin Cao,Ahmad Fauzi Ismail,Xianbo Lu,Jiping Chen,Seeram Ramakrishna +7 more
TL;DR: An exhaustive examination of current research trends with a focus on nanomaterials (NMs) to considerably improve the performance of classical wastewater treatment technologies, e.g. adsorption, catalysis, separation, and disinfection is undertaken.
References
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Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
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Preparation and Characterization of Graphene Oxide Paper
Dmitriy A. Dikin,Sasha Stankovich,Eric Zimney,Richard D. Piner,Geoffrey Dommett,Guennadi Evmenenko,SonBinh T. Nguyen,Rodney S. Ruoff +7 more
TL;DR: Graphene oxide paper is reported, a free-standing carbon-based membrane material made by flow-directed assembly of individual graphene oxide sheets that outperforms many other paper-like materials in stiffness and strength.
Journal ArticleDOI
The Future of Seawater Desalination: Energy, Technology, and the Environment
TL;DR: The possible reductions in energy demand by state-of-the-art seawater Desalination technologies, the potential role of advanced materials and innovative technologies in improving performance, and the sustainability of desalination as a technological solution to global water shortages are reviewed.
Journal ArticleDOI
Impermeable atomic membranes from graphene sheets.
J. Scott Bunch,Scott S. Verbridge,Jonathan S. Alden,Arend M. van der Zande,Jeevak M. Parpia,Harold G. Craighead,Paul L. McEuen +6 more
TL;DR: This pressurized graphene membrane is the world's thinnest balloon and provides a unique separation barrier between 2 distinct regions that is only one atom thick.