Related Experiment Video
Updated: Sep 24, 2025
09:31
Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
Published on: March 27, 2019
9.6K
Wettability of MXene films.
Peter Machata1, Monika Hofbauerová2, Yaryna Soyka1
1Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava 845 41, Slovak Republic.
Journal of Colloid and Interface Science
|May 9, 2022
Summary
Researchers investigated the wettability of Ti3C2Tx MXene, finding that advancing contact angles are substrate-independent. Giant contact angle hysteresis suggests surface chemical heterogeneity influences Ti3C2Tx MXene wettability.
Area of Science:
- Materials Science
- Surface Chemistry
- Nanotechnology
Background:
- Ti3C2Tx MXene is a 2D nanomaterial known for its hydrophilicity.
- Reported static contact angles for Ti3C2Tx MXene vary widely, creating ambiguity.
- Understanding MXene wettability is crucial for its applications.
Purpose of the Study:
- To clarify the reported static contact angles of Ti3C2Tx MXene.
- To investigate the physical basis of Ti3C2Tx MXene wettability using contact angle hysteresis.
- To obtain reproducible contact angle data for Ti3C2Tx MXene.
Main Methods:
- Advancing and receding contact angle measurements were performed on Ti3C2Tx MXene layers.
- Mono-, bi-, and trilayer Ti3C2Tx MXene films were analyzed.
- Two substrates were used: UV-ozone treated silicon wafer and functionalized silicon wafer.
Main Results:
- Advancing contact angles were independent of the number of Ti3C2Tx MXene layers.
- Substrate wettability had a negligible effect on the advancing contact angle.
- A large contact angle hysteresis (44-52°) was observed on smooth Ti3C2Tx MXene surfaces.
Conclusions:
- The study elucidates the wettability of Ti3C2Tx MXene.
- Chemical heterogeneity due to diverse surface terminal groups (F, O, OH) likely causes the observed hysteresis.
- Reproducible contact angle data requires focusing on hysteresis and smooth surfaces.
