| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering VII
|
| Presentation Title |
Application of Self-Supporting Vermiculite Membrane in LiCl/MgCl2 Separation |
| Author(s) |
Jiaqing Zhao, Jinhong Li, Jiayang Wang, Yunxuan Wang, Shaogang Zhang |
| On-Site Speaker (Planned) |
Jiaqing Zhao |
| Abstract Scope |
The separation membrane of lithium and magnesium was important for the development of lithium resources. At present, nanosheets commonly used for membrane such as graphene oxide are costly and difficult of exfoliation. Although montmorillonite mineral nanosheets are inexpensive, they often have smaller lateral dimension. Vermiculite, an equally inexpensive layered silicate, has weaker Van der Waals between its molecular layers, which facilitates the production of larger-lateral-dimension nanosheets to improve separation ability. In the experiment, we obtained single-layer vermiculite nanosheets with a lateral diameter of nearly micrometers through ion intercalation and ultrasound. When forming a membrane through vacuum filtration, glutaraldehyde was added to bond the nanosheets at a specific distance, resulting in a self-supporting vermiculite nanosheet with a high lithium and magnesium separation coefficient (9.47). We hope that this exploratory work can provide some reference for the selection of raw materials for lithium and magnesium separation membranes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Sustainability, Nanotechnology |