Type of project: MSc Thesis/internship
Anticipated start: from January, 2025
Duration: >5 months
Location: Wetsus, European center of excellence for sustainable water technology (Leeuwarden, the Netherlands)
Project description:
In recent years, polyelectrolyte multilayer (PEM) nanofiltration (NF) membranes have shown significant advancements in separation properties for various applications. A key advantage of these membranes lies in the versatility of the layer-by-layer (LbL) technique, which allows for precise tuning of the chemistry and performance of NF membranes, enabling them to go beyond the capabilities of conventional NF membranes. Especially, PEM membranes based on PDADMAC (poly(diallyldimethylammoniumchloride)) and PSS (poly(sodium 4-styrenesulfonate)) show excellent chemical stability, allowing for operation at extreme pH conditions and cleaning with hypochlorite. However, a significant drawback of PDADMAC/PSS-based membranes is their reduced stability in highly saline streams, as the ionic bonds that hold the PEM layer together weaken. This project aims to explore various crosslinking methods to introduce covalent bonds, thereby enhancing membrane stability and fine-tuning membrane selectivity for specialized water treatment applications.
Your profile:
Offers & Benefits:
*The Wetsus Grant allowance is not guaranteed and must be approved by the Grant Committee.
How to apply:
Please upload your cv (max 2 A4 pages), motivation letter (max. 1 A4 page), and a list of the attended courses and the equivalent ECTS via the application form provided below (in English). Feel free to contact Xiao Zhang (xiao.zhang@wetsus.nl) if you have further questions or need more information.