Engineering of Superhydrophobic Materials: Applications and Prospects in Oil-Water Separation Technology
DOI:
https://doi.org/10.69855/science.v2i3.165Keywords:
Superhydrophobic materials, Oil-water separation, Dip-coating, Electrospinning, Chemical etchingAbstract
The rapid growth of industries like petrochemical processing, offshore drilling, transportation, and metallurgy has increased oily wastewater and oil spills, threatening ecosystems and human health. Traditional oil-water separation methods often struggle with low efficiency and poor stability, especially against stable emulsions. This study investigates superhydrophobic materials fabricated via dip-coating on stainless steel mesh, electrospinning of PVDF membranes, and chemical etching of aluminum surfaces. All materials showed excellent water repellency with contact angles over 150°, achieving oil-water separation efficiencies above 97% for various oils. The dip-coated mesh achieved the highest flux and separation efficiency, while the electrospun membrane offered enhanced chemical resistance and durability. Despite promising results, challenges remain including mechanical abrasion resistance, environmental concerns over hydrophobic coatings, and scalability for industrial use. Future research should focus on eco-friendly, self-healing, and stimulus-responsive coatings to improve durability and environmental safety, advancing the practical application of superhydrophobic materials in wastewater treatment and oil spill remediation.
References
Bhushan, B., & Jung, Y. C. (2011). Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction. Progress in Materials Science, 56(1), 1–108. https://doi.org/10.1016/j.pmatsci.2010.04.003
Chen, H., Zhang, X., & Zhao, Y. (2019). Recent advances in superhydrophobic membranes for oil/water separation. Journal of Membrane Science, 581, 166–178. https://doi.org/10.1016/j.memsci.2019.03.032
Feng, L., & Jiang, L. (2006). Design and creation of superwetting/antiwetting surfaces. Advanced Materials, 18(23), 3063–3078. https://doi.org/10.1002/adma.200600424
Gao, X., & Jiang, L. (2004). Water-repellent legs of water striders. Nature, 432(7013), 36. https://doi.org/10.1038/432036a
Guo, Z., & Liu, W. (2017). Biomimic from the superhydrophobic plant leaves in nature: Binary structure and unitary structure. Plant Science, 267, 101–110. https://doi.org/10.1016/j.plantsci.2017.09.010
Hasan, J., & Crawford, R. J. (2019). Superhydrophobic surfaces: Fundamentals, mechanisms and bioinspired applications. Royal Society Open Science, 6(12), 191172. https://doi.org/10.1098/rsos.191172
Hou, Y., Zhang, W., & Chen, J. (2020). Electrospun nanofiber membranes for oil–water separation: A review. Advanced Fiber Materials, 2, 75–98. https://doi.org/10.1007/s42765-020-00016-6
Jiang, L., Zhao, Y., & Zhai, J. (2004). A lotus-leaf-like superhydrophobic surface: A porous microsphere/nanofiber composite film prepared by electrohydrodynamics. Angewandte Chemie International Edition, 43(33), 4338–4341. https://doi.org/10.1002/anie.200460549
Li, X. M., Reinhoudt, D., & Crego-Calama, M. (2007). What do we need for a superhydrophobic surface? A review on the recent progress in the preparation of superhydrophobic surfaces. Chemical Society Reviews, 36(8), 1350–1368. https://doi.org/10.1039/b700049k
Liu, M., Wang, S., & Jiang, L. (2010). Nature-inspired superwettability systems. Nature Reviews Materials, 1(1), 16001. https://doi.org/10.1038/natrevmats.2016.1
Ma, M., & Hill, R. M. (2006). Superhydrophobic surfaces. Current Opinion in Colloid & Interface Science, 11(4), 193–202. https://doi.org/10.1016/j.cocis.2006.06.001
Nosonovsky, M., & Bhushan, B. (2007). Hierarchical roughness optimization for biomimetic superhydrophobic surfaces. Ultramicroscopy, 107(9), 969–979. https://doi.org/10.1016/j.ultramic.2007.04.013
Wang, Z., Jin, J., & He, J. (2019). Robust superhydrophobic materials for oil/water separation. Advanced Materials Interfaces, 6(15), 1900435. https://doi.org/10.1002/admi.201900435
Xu, L., Yao, X., & Cai, Y. (2017). Recent developments in superhydrophobic and superoleophilic materials for oil-water separation. Journal of Materials Chemistry A, 5(13), 6089–6103. https://doi.org/10.1039/C6TA10038H
Zhu, L., Li, J., & Liu, C. (2018). Progress in fabrication and application of superhydrophobic materials in oil/water separation. Frontiers of Chemical Science and Engineering, 12(1), 50–68. https://doi.org/10.1007/s11705-017-1667-6
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