Salt concentration, pH and pressure controlled separation of small molecules through lamellar graphene oxide membranes.

For the first time, pressure, salt concentration and pH demonstrated advantages for tuning the nanochannels within lamellar graphene oxide (LGO) membranes to control the separation of small molecules. This provides a new avenue for designing and engineering efficient LGO membranes for molecular separation.

[1]  Masatoshi Watanabe,et al.  Preparation of a Mesoporous Silica Film with a Strictly Aligned Porous Structure through a Sol−Gel Process , 2005 .

[2]  Da Chen,et al.  Graphene oxide: preparation, functionalization, and electrochemical applications. , 2012, Chemical reviews.

[3]  R. Ruoff,et al.  Graphene and Graphene Oxide: Synthesis, Properties, and Applications , 2010, Advanced materials.

[4]  Younan Xia,et al.  Fabrication and characterization of porous membranes with highly ordered three-dimensional periodic structures , 1999 .

[5]  Miao Zhu,et al.  Selective ion penetration of graphene oxide membranes. , 2013, ACS nano.

[6]  Izumi Ichinose,et al.  Ultrafast permeation of water through protein-based membranes. , 2009, Nature nanotechnology.

[7]  I. Grigorieva,et al.  Unimpeded Permeation of Water Through Helium-Leak–Tight Graphene-Based Membranes , 2011, Science.

[8]  James M Tour,et al.  Graphene oxide. Origin of acidity, its instability in water, and a new dynamic structural model. , 2013, ACS nano.

[9]  G. Eda,et al.  Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material. , 2008, Nature nanotechnology.

[10]  G. Wallace,et al.  Processable aqueous dispersions of graphene nanosheets. , 2008, Nature nanotechnology.

[11]  Chao Gao,et al.  Aqueous liquid crystals of graphene oxide. , 2011, ACS nano.

[12]  Dan Li,et al.  Controllable corrugation of chemically converted graphene sheets in water and potential application for nanofiltration. , 2011, Chemical communications.

[13]  L. Brinson,et al.  Functionalized graphene sheets for polymer nanocomposites. , 2008, Nature nanotechnology.

[14]  Jiaxing Huang,et al.  Nanofluidic ion transport through reconstructed layered materials. , 2012, Journal of the American Chemical Society.