Efficient Solar Steam Generation and Salt Harvesting with a New MXene Membrane
Author Information
Author(s): Xu Ruiqi, Cui Hongzhi, Wei Na, Yu Yang, Dai Lin, Chen Xiaohua
Primary Institution: Ocean University of China
Hypothesis
Can a biomimetic micro-nanostructured evaporator using dual-transition-metal MXene improve solar steam generation and multifunctional salt harvesting?
Conclusion
The (V1/2Mo1/2)2CTx MXene-200 composite membrane achieved a high evaporation rate of 2.23 kg m−2 h−1 and enabled effective salt harvesting.
Supporting Evidence
- The (V1/2Mo1/2)2CTx MXene-200 composite membrane can achieve a high evaporation rate of 2.23 kg m−2 h−1 under one sun.
- The membrane exhibits excellent multifunctionality including anti-/de-icing, anti-fouling, and antibacterial properties.
- The design of the micro-nanostructured surface enhances the 'light trap' effect, improving solar absorption.
Takeaway
Scientists created a special membrane that can turn sunlight into steam really well and also collect salt from seawater, helping to make fresh water.
Methodology
The membrane was designed using ultrafast laser etching technology to create a superhydrophobic surface with MXene as a photothermal layer.
Digital Object Identifier (DOI)
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