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Bioinspired fog water harvesting: interfacial physics, materials design, and multifunctional integration
Ziwei Wang1, Zhihang Ye1, Haoyu Bai1
1School of Materials Science and Engineering, Tianjin Key Laboratory of Metal and Molecular Materials Chemistry, Frontiers Science Center for New Organic Matter, Academy for Advanced Interdisciplinary Studies, Nankai University, Tianjin 300350, P. R. China. bhyy@nankai.edu.cn.
Bioinspired strategies enhance atmospheric water collection in arid, foggy regions by optimizing designs for droplet motion. Future systems integrate water harvesting with energy generation and purification for sustainable resource management.
Area of Science:
- Materials Science
- Environmental Science
- Engineering
Background:
- Global water scarcity drives demand for efficient atmospheric water collection, particularly in arid, foggy regions.
- Conventional fog collectors face limitations in efficiency and susceptibility to clogging.
- Early bioinspired approaches often focused on single biological features, limiting overall performance.
Purpose of the Study:
- To systematically review recent advancements in bioinspired fog water collection technologies.
- To analyze core design strategies based on physical mechanisms of droplet motion.
- To explore the integration of fog harvesting with multifunctional systems for water-energy-environment applications.
Main Methods:
- Analysis of geometric configurations (conical, spindle-knot structures).
- Investigation of interfacial energy modulation (hydrophilic/hydrophobic patterns, super-slippery surfaces).
- Examination of aerodynamic regulation (vortex structures, active aerodynamic control).
Main Results:
- Technological evolution from single-feature bioinspiration to multi-mechanism synergy.
- Development of multifunctional integrated systems for water harvesting, energy generation, and contaminant purification.
- Identification of key challenges including durability, scalable fabrication, and practical deployment.
Conclusions:
- Bioinspired fog collection shows significant potential for efficient and sustainable water harvesting.
- Multifunctional integrated systems offer advanced capabilities beyond water collection.
- Future research should focus on AI-assisted design, durable materials, and self-sufficient systems.
