Related Experiment Video
Updated: Jun 6, 2026
10:31
A Model Membrane Platform for Reconstituting Mitochondrial Membrane Dynamics
Published on: September 2, 2020
Interlayer-Confined Redox Assembly Creates a Continuous, Addressable Phase for Coupled Mass-Energy Transport in
Ruizong Zhang1,2,3, Xiaolong Li4, Zixiao Lv1,2,3
1MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China.
Nano Letters
|June 4, 2026
Summary
This study introduces a novel graphene oxide (GO) membrane with an active interlayer, creating a conductive metal-carbon phase. This advanced membrane demonstrates exceptional uranium rejection and tunable transport properties.
Area of Science:
- Materials Science
- Nanotechnology
- Chemical Engineering
Background:
- Lamellar 2D membranes typically have passive interlayers.
- Graphene oxide (GO) membranes offer nanoscale transport but lack active interlayer functionality.
Purpose of the Study:
- To engineer reactive nanospaces within GO membrane interlayers.
- To create a continuous, electronically addressable metal-carbon phase within GO galleries.
Main Methods:
- Incorporation of single-walled carbon nanotubes (SWCNTs) as conductive bridges.
- In situ redox assembly within confined GO galleries for silver nanoparticle nucleation.
- Characterization of membrane mechanical, electromagnetic, and transport properties.
Main Results:
- Formation of an anchored silver-carbon interlayer network preserving lamellar order.
- Enhanced membrane strength (131 MPa) and electromagnetic attenuation (47 dB).
- High uranium rejection (96.61-98.04%) and selectivity (SFV/U up to 74.17).
Conclusions:
- The developed GO membrane transforms passive interlayers into active, functional nanospaces.
- The metal-carbon phase enables tunable transport and efficient uranium capture.
- This approach offers a new paradigm for advanced membrane design and applications.
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