Journal article
Tuning Water Transport through Nanochannels of Robust Cation-Intercalated Ti 3 C 2 T x MXene Membranes
ChemSusChem, v 18(19), e202500837
13 Aug 2025
PMID: 40801471
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Ti3C2Tx MXene membranes have attracted considerable interest due to their exceptional water transport properties, yet the role of cation intercalation on governing transport remains poorly understood. In this experimental and theoretical study, it shows how intercalation with K+, Na+, Li+, Ca2+, and Mg2+ modulates both the nanochannel architecture and water flux of Ti3C2Tx membranes. Unlike in graphene oxide analogs, cations with larger hydration diameters in Ti3C2Tx expand the interlayer spacing, widening flow channels, enhancing slip length of these nanochannels, and boosting water flux from 31.45 to 61.86 L m-2 h-1. To overcome intrinsically poor adhesion of Ti3C2Tx to polymeric supports, this study incorporates a thin polyvinyl-alcohol interlayer, which substantially enhances mechanical robustness and structural integrity. Together, these findings elucidate how cation hydration controls water transport and offer a flexible strategy for tailoring MXene membrane performance.
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Details
- Title
- Tuning Water Transport through Nanochannels of Robust Cation-Intercalated Ti 3 C 2 T x MXene Membranes
- Creators
- Vahid Rad - Drexel UniversityAhmad A Shamsabadi - University of PennsylvaniaAmir Aghaei - University of AlbertaBrian C Wyatt - Purdue University West LafayetteFarzaneh Jahanbakhshi - University of PennsylvaniaAnupma Thakur - Purdue University West LafayetteHui Fang - University of PennsylvaniaMohtada Sadrzadeh - University of AlbertaBabak Anasori - Purdue University West LafayetteAndrew M Rappe - University of PennsylvaniaZahra Fakhraai - University of PennsylvaniaMasoud Soroush (Corresponding Author) - Drexel University
- Publication Details
- ChemSusChem, v 18(19), e202500837
- Publisher
- Wiley
- Number of pages
- 10
- Grant note
- Vagelos Institute of Energy Science and Technology CMMI-2134607 / National Science Foundation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:001548607500001
- Scopus ID
- 2-s2.0-105012967413
- Other Identifier
- 991022082746104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Green & Sustainable Science & Technology