Journal of Bionic Engineering

, Volume 15, Issue 3, pp 452–460 | Cite as

Enhancing Nucleation and Detachment of Condensed Drops by Hybrid Wetting Surfaces

  • Xikui Wang
  • Jing Zhang
  • Jia Zeng
  • Shanlin Wang
  • Xinquan Yu
  • Youfa Zhang


Hybrid wetting surfaces have been developed to enhance condensation heat transfer, water collection and seawater desalination, due to the advantages of high droplet nucleation efficiency and excellent removal effect. However, there are still many difficulties to overcome before a simple, operable and low-cost system can be exploited in large-scale practical applications. In the present report, an applicable way to fabricate sprayable hybrid wetting coatings mixed with superhydrophobic and hydrophilic particles is described. Conventional condensation tests are carried out for comparison of the nucleation, growth, coalescence and ejection behaviors of dewdrops on a hybrid wetting surface with different hydrophilic particles. Test results showed that a hybrid wetting surface with superhydrophobic and hydrophilic particles has a higher drop number density than a homogeneous superhydrophobic surface has. As expected, this advantage was exhibited also in the water collection test.


condensation heat transfer superhydrophobicity superhydrophilicity 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.



This study was supported by the National Natural Science Foundation of China (51671055, 51676033), the China National Key R&D Program (2016YFC0700304).


  1. [1]
    Chen X M, Wu J, Ma R Y, Hua M, Nikhil K, Yao S H, Wang Z K. Nanograssed micropyramidal architectures for continuous dropwise condensation. Advanced Functional Materials, 2011, 21, 4617–4623.CrossRefGoogle Scholar
  2. [2]
    Cira N J, Benusiglio A, Prakash M. Vapour-mediated sensing and motility in two-component droplets. Nature, 2015, 519, 446–450.CrossRefGoogle Scholar
  3. [3]
    Enright R, Miljkovic N, Sprittles J, Nolan K, Mitchell R, Wang E N. How coalescing droplets jump. ACS Nano, 2014, 8, 10352–10362.CrossRefGoogle Scholar
  4. [4]
    Luo Y T, Li J, Zhu J, Zhao Y, Gao X F. Fabrication of condensate microdrop self-propelling porous films of cerium oxide nanoparticles on copper surfaces. Angewandte Chemie International Edition, 2015, 54, 4876–4879.CrossRefGoogle Scholar
  5. [5]
    Emre Ö, Matthew M C. Self-organization of microscale condensate for delayed flooding of nanostructured superhydrophobic surfaces. ACS Applied Materials & Interfaces, 2016, 8, 5729–5736.CrossRefGoogle Scholar
  6. [6]
    Parker A R, Lawrence C R. Water capture by a desert beetle. Nature, 2001, 414, 33–34.CrossRefGoogle Scholar
  7. [7]
    Boreyko J B, Collier C P. Delayed frost growth on jumping- drop superhydrophobic surfaces. ACS Nano, 2013, 7, 1618–1627.CrossRefGoogle Scholar
  8. [8]
    Miljkovic N, Enright R, Nam Y, Lopez K, Dou N S, Jean H, Wang E N. Jumping-droplet-enhanced condensation on scalable superhydrophobic nanostructured surfaces. Nano Letters, 2013, 13, 179–187.CrossRefGoogle Scholar
  9. [9]
    Schutzius T M, Jung S, Maitra T, Graeber G, Köhme M, Poulikakos D. Spontaneous droplet trampolining on rigid superhydrophobic surfaces. Nature, 2015, 527, 82–85.CrossRefGoogle Scholar
  10. [10]
    Ryan E, Nenad M, Ahmed A O, Carl V T, Evelyn N W. Condensation on superhydrophobic surfaces: The role of local energy barriers and structure length scale. Langmuir, 2012, 28, 14424–14432.CrossRefGoogle Scholar
  11. [11]
    Hou Y M, Miao Y, Chen X M, Wang Z K, Yao S H. Recurrent filmwise and dropwise condensation on a beetle mimetic surface. ACS Nano, 2014, 9, 71–81.CrossRefGoogle Scholar
  12. [12]
    Kyoo-Chul P, Philseok K, Alison G, Neil H, David F, James C W, Joanna A. Condensation on slippery asymmetric bumps. Nature, 2016, 531, 78–82.CrossRefGoogle Scholar
  13. [13]
    Zhu H, Guo Z G. Hybrid engineering materials with high water collecting efficiency inspired by namib desert beetles. Advanced Functional Materials, 2014, 26, 5025–5030.CrossRefGoogle Scholar
  14. [14]
    Song Y, Liu Y, Zhan B, Cigdem K, Thomas S, Han Z W, Ren L Q. Fabrication of bioinspired structured superhydrophobic and superoleophilic copper mesh for efficient oil-water separation. Journal of Bionic Engineering, 2017, 3, 497–505.CrossRefGoogle Scholar
  15. [15]
    Zhu H, Guo Z G. Understanding the separations of oil/water mixtures from immiscible to emulsions on super-wettable surfaces. Journal of Bionic Engineering, 2016, 1, 1–29.CrossRefGoogle Scholar
  16. [16]
    Huang J Y, Lai Y K, Pan F, Yang L, Wang H, Zhang K Q, Harald F, Chi L F. Multifunctional superamphiphobic TiO2 nanostructure surfaces with facile wettability and adhesion engineering. Small, 2014, 23, 4865–4873.CrossRefGoogle Scholar
  17. [17]
    Benjamin D H, Joanna A. Writing on superhydrophobic nanopost arrays: Topographic design for bottom-up assembly. Nano Letters, 2012, 12, 4551–4557.CrossRefGoogle Scholar
  18. [18]
    Erica U, Pavel A. Emerging applications of superhydrophilic- superhydrophobic micropatterns. Advanced Materials, 2013, 25, 1234–1247.CrossRefGoogle Scholar
  19. [19]
    Jaehyun L, Sangyeon H, Dae-Hyun C, Jungwoo H, Jennifer H. S, Doyoung B. RF plasma based selective modification of hydrophilic regions on super hydrophobic surface. Applied Surface Science, 2017, 394, 543–553.Google Scholar
  20. [20]
    Lidiya M, Mughees K, Joanna A, Benjamin D. H. Spatial control of condensation and freezing on superhydrophobic surfaces with hydrophilic patches. Advanced Functional Materials, 2013, 23, 4577–4584.Google Scholar
  21. [21]
    Bai H, Wang L, Ju J, Sun R, Zheng Y M, Jiang L. Efficient water collection on integrative bioinspired surfaces with star-shaped wettability patterns. Advanced Materials, 2014, 26, 5025–5030.CrossRefGoogle Scholar
  22. [22]
    Zhu Y Q, Shi J F, Huang Q Z, Wang L L, Xu G. A facile approach for TiO2-based superhydrophobic-superhydrophilic patterns by UV or solar irradiation without a photomask. Chemical Communications, 2017, 53, 2363–2366.CrossRefGoogle Scholar
  23. [23]
    Takashi K, Yuki S, Hiromi Y. Superhydrophobic surfaces with photocatalytic self-cleaning properties by nanocomposite coating of TiO2 and polytetrafluoroethylene. Advanced Materials, 2012, 24, 3697–3700.CrossRefGoogle Scholar
  24. [24]
    Soyoung C, Hak-Jong C, Heon L. Water-collecting behavior of nanostructured surfaces with special wettability. Applied Surface Science, 2015, 324, 563–568.CrossRefGoogle Scholar
  25. [25]
    Pallab S M, Aritra G, Ranjan G, Constantine M. M. Key design and operating parameters for enhancing dropwise condensation through wettability patterning. International Journal of Heat and Mass Transfer, 2016, 92, 877–883.Google Scholar
  26. [26]
    Zhang S N, Huang J Y, Chen Z, Lai Y K. Bioinspired special wettability surfaces: From fundamental research to water harvesting applications. Small, 2017, 13, 1–28.Google Scholar
  27. [27]
    Xu T, Lin Y C, Zhang M X, Shi W W, Zheng Y M. High-efficiency fog collector: Water unidirectional transport on heterogeneous rough conical wires. ACS Nano, 2016, 10, 10681–10688.CrossRefGoogle Scholar
  28. [28]
    Malik F T, Clement R M, Gethin D T, Krawszik W, Parker A R. Nature’s moisture harvesters: A comparative review. Bioinspired and Biomimetics, 2014, 9, 1–15.CrossRefGoogle Scholar
  29. [29]
    Tan X H, Shi T L, Tang Z R, Sun B, Du L, Peng Z C, Liao G L. Investigation of fog collection on cactus-inspired structures. Journal of Bionic Engineering, 2016, 13, 364–372.CrossRefGoogle Scholar
  30. [30]
    Wu J B, Zhang L B, Wang Y C, Wang P. Efficient and anisotropic fog harvesting on a hybrid and directional surface. Advanced Materials Interfaces, 2017, 4, 1600801.CrossRefGoogle Scholar
  31. [31]
    Mondal B, Eain M M G, Xu Q F, Egan V M, Punch J, Lyons A M. Design and fabrication of a hybrid superhydrophobic- hydrophilic surface that exhibits stable dropwise condensation. ACS Applied Materials & Interfaces, 2015, 7, 23575–23588.CrossRefGoogle Scholar
  32. [32]
    Teodori E, Moita A S, Ponte M, Moreira A, Bai Y, Li X, Liu Y. Application of bioinspired superhydrophobic surfaces in two-phase heat transfer experiments, Journal of Bionic Engineering, 2017, 14, 506–519.CrossRefGoogle Scholar

Copyright information

© Jilin University 2018

Authors and Affiliations

  1. 1.Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and EngineeringSoutheast UniversityNanjingChina

Personalised recommendations