A5018739594- Nanopore and Nanochannel Transport Studies
- Membrane-based Ion Separation Techniques
- Force Microscopy Techniques and Applications
- Advanced Electron Microscopy Techniques and Applications
- Extraction and Separation Processes
- Graphene research and applications
- Electrochemical Analysis and Applications
- Electrostatics and Colloid Interactions
- Geochemistry and Elemental Analysis
- Radioactive element chemistry and processing
- Electron and X-Ray Spectroscopy Techniques
University of Chicago
2024
Beijing National Laboratory for Molecular Sciences
2021
Peking University
2021
Rare earth elements (REEs), critical to modern industry, are difficult separate and purify, given their similar physicochemical properties originating from the lanthanide contraction. Here, we systematically study transport of ions (Ln 3+ ) in artificially confined angstrom-scale two-dimensional channels using MoS 2 -based building blocks an aqueous environment. The results show that uptake permeability Ln assume a well-defined volcano shape peaked at Sm . This behavior is rooted tradeoff...
The extractant-assisted transport of metal ions from aqueous to organic environments by liquid-liquid extraction has been widely used separate and recover critical elements on an industrial scale. While current efforts focus designing better extractants optimizing process conditions, the mechanism that underlies ionic remains poorly understood. Here, we report a nonequilibrium in bulk phase influences interfacial ion transport: formation metastable ion-extractant precipitates away interface,...
Emulating angstrom-scale dynamics of the highly selective biological ion channels is a challenging task. Recent work on artificial has expanded our understanding transport and uptake mechanisms under confinement. However, role chemical environment in such still not well understood. Here, we report anomalously enhanced ions confined MoS 2 -based that are ~five angstroms size. The preference can be changed by selection surface functional groups sequence due to interplay between kinetic...
Cryo-electron microscopy (cryo-EM) has emerged as a vital tool to reveal the native structure of beam-sensitive biomolecules and materials. Yet high-resolution cryo-EM analysis is still limited by poorly controlled specimen preparation urgently demands robust supporting film material prepare desirable samples. Here, we developed bilayer Janus graphene membrane with top-layer being functionalized interact target molecules on surface, while bottom layer kept intact reinforce its mechanical...