Journal of Materials Science

, Volume 50, Issue 16, pp 5371–5377 | Cite as

A three-dimensional porous metal foam with selective-wettability for oil–water separation

  • Jun Zhang
  • Keju Ji
  • Jia Chen
  • Yafei Ding
  • Zhendong DaiEmail author
Original Paper


The development of selective-wettability surfaces of porous materials is important for oil spill cleanup. A new type of oil–water separation material has been prepared through a three-dimensional (3-D) extension of a biologically inspired two-dimensional (2-D) material. In this, a simple solution-immersion method is used to construct a super-oleophilic and super-hydrophobic surface on the metallic skeleton of a copper foam, onto which a nanosheet structure is formed that differs greatly from previous nanoscale needle-based materials. This 3-D copper foam is demonstrated to be capable of supporting a maximum height of accumulated water of 5.5 cm prior to oil wetting and 1.5 cm after oil wetting. Furthermore, the foam is capable of efficient oil–water separation, despite losing its super-hydrophobicity during the process. This has given important new insight into the mechanism of separation, in that super-oleophilicity is clearly important to achieving good separation. The selective-wettability of this porous metal foam is expected to extend the range of metal-based oil–water separation materials from 2D metal meshes to more complex 3-D metal structures.


Contact Angle Water Droplet Potassium Persulfate Water Separation Dark Blue Color 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by the National Natural Science Foundation of China (Grant No. 90916021, 51435008) and funded by the Jiangsu Innovation Program for Graduate Education (CXLX12_0141).

Supplementary material

Supplementary material 1 (MP4 27112 kb)

Supplementary material 2 (MP4 23363 kb)

Supplementary material 3 (MP4 39878 kb)

Supplementary material 4 (MP4 23089 kb)


  1. 1.
    Adebajo MO, Frost RL, Kloprogge JT, Carmody O, Kokot S (2003) Porous materials for oil spill cleanup: a review of synthesis and absorbing properties. J Porous Mater 10(3):159–170CrossRefGoogle Scholar
  2. 2.
    Broje V, Keller AA (2006) Improved mechanical oil spill recovery using an optimized geometry for the skimmer surface. Environ Sci Technol 40(24):7914–7918CrossRefGoogle Scholar
  3. 3.
    Wang C, Yao T, Wu J, Ma C, Fan Z, Wang Z, Cheng Y, Lin Q, Yang B (2009) Facile approach in fabricating superhydrophobic and superoleophilic surface for water and oil mixture separation. ACS Appl Mater & Interfaces 1(11):2613–2617CrossRefGoogle Scholar
  4. 4.
    Wu L, Zhang J, Li B, Wang A (2014) Mechanical-and oil-durable superhydrophobic polyester materials for selective oil absorption and oil/water separation. J Colloid Interface Sci 413:112–117CrossRefGoogle Scholar
  5. 5.
    Yang H, Pi P, Cai Z-Q, Wen X, Wang X, Cheng J, Yang Z-R (2010) Facile preparation of super-hydrophobic and super-oleophilic silica film on stainless steel mesh via sol–gel process. Appl Surf Sci 256(13):4095–4102CrossRefGoogle Scholar
  6. 6.
    An J, Sun H, Cui J, Zhu Z, Liang W, Pei C, Yang B, Li A (2014) Surface modification of polypyrrole-coated foam for the capture of organic solvents and oils. J Mater Sci 49(13):4576–4582. doi: 10.1007/s10853-014-8157-8 CrossRefGoogle Scholar
  7. 7.
    Zhu X, Zhang Z, Yang J, Xu X, Men X, Zhou X (2012) Facile fabrication of a superhydrophobic fabric with mechanical stability and easy-repairability. J Colloid Interface Sci 380(1):182–186CrossRefGoogle Scholar
  8. 8.
    Ge B, Men X, Zhu X, Zhang Z (2015) A superhydrophobic monolithic material with tunable wettability for oil and water separation. J Mater Sci 50(6):2365–2369. doi: 10.1007/s10853-014-8756-4 CrossRefGoogle Scholar
  9. 9.
    Kang SM, You I, Cho WK, Shon HK, Lee TG, Choi IS, Karp JM, Lee H (2010) One-step modification of superhydrophobic surfaces by a mussel-inspired polymer coating. Angew Chem Int Ed 49(49):9401–9404CrossRefGoogle Scholar
  10. 10.
    Li W, Amirfazli A (2008) Hierarchical structures for natural superhydrophobic surfaces. Soft Matter 4(3):462–466CrossRefGoogle Scholar
  11. 11.
    Liu K, Du J, Wu J, Jiang L (2012) Superhydrophobic gecko feet with high adhesive forces towards water and their bio-inspired materials. Nanoscale 4(3):768–772CrossRefGoogle Scholar
  12. 12.
    Zhang Y-L, Wang J-N, He Y, He Y, Xu B-B, Wei S, Xiao F-S (2011) Solvothermal synthesis of nanoporous polymer chalk for painting superhydrophobic surfaces. Langmuir 27(20):12585–12590CrossRefGoogle Scholar
  13. 13.
    Ishizaki T, Hieda J, Saito N, Saito N, Takai O (2010) Corrosion resistance and chemical stability of super-hydrophobic film deposited on magnesium alloy AZ31 by microwave plasma-enhanced chemical vapor deposition. Electrochim Acta 55(23):7094–7101CrossRefGoogle Scholar
  14. 14.
    Nakajima A, Abe K, Hashimoto K, Watanabe T (2000) Preparation of hard super-hydrophobic films with visible light transmission. Thin Solid Films 376(1):140–143CrossRefGoogle Scholar
  15. 15.
    Huang L, Lau S, Yang H, Leong E, Yu S, Prawer S (2005) Stable superhydrophobic surface via carbon nanotubes coated with a ZnO thin film. J Phys Chem B 109(16):7746–7748CrossRefGoogle Scholar
  16. 16.
    Shirtcliffe NJ, McHale G, Newton MI, Perry CC (2003) Intrinsically superhydrophobic organosilica sol–gel foams. Langmuir 19(14):5626–5631CrossRefGoogle Scholar
  17. 17.
    Shi F, Wang Z, Zhang X (2005) Combining a layer-by-layer assembling technique with electrochemical deposition of gold aggregates to mimic the legs of water striders. Adv Mater 17(8):1005–1009CrossRefGoogle Scholar
  18. 18.
    Li J, Shi L, Chen Y, Zhang Y, Guo Z, Su B-L, Liu W (2012) Stable superhydrophobic coatings from thiol-ligand nanocrystals and their application in oil/water separation. J Mater Chem 22(19):9774–9781CrossRefGoogle Scholar
  19. 19.
    Zhu Q, Pan Q, Liu F (2011) Facile removal and collection of oils from water surfaces through superhydrophobic and superoleophilic sponges. J Phys Chem C 115(35):17464–17470CrossRefGoogle Scholar
  20. 20.
    Gao R, Liu Q, Wang J, Liu J, Yang W, Gao Z, Liu L (2014) Construction of superhydrophobic and superoleophilic nickel foam for separation of water and oil mixture. Appl Surf Sci 289:417–424CrossRefGoogle Scholar
  21. 21.
    Feng L, Zhang Z, Mai Z, Ma Y, Liu B, Jiang L, Zhu D (2004) A super-hydrophobic and super-oleophilic coating mesh film for the separation of oil and water. Angew Chem Int Ed 43(15):2012–2014CrossRefGoogle Scholar
  22. 22.
    Lee CH, Johnson N, Drelich J, Yap YK (2011) The performance of superhydrophobic and superoleophilic carbon nanotube meshes in water–oil filtration. Carbon 49(2):669–676CrossRefGoogle Scholar
  23. 23.
    Bormashenko E, Balter S, Bormashenko Y, Aurbach D (2012) Honeycomb structures obtained with breath figures self-assembly allow water/oil separation. Colloids Surf, A 415:394–398CrossRefGoogle Scholar
  24. 24.
    Li K, Zeng X, Li H, Lai X, Xie H (2014) Facile fabrication of superhydrophobic filtration fabric with honeycomb structures for the separation of water and oil. Mater Lett 120:255–258CrossRefGoogle Scholar
  25. 25.
    Zang D, Wu C, Zhu R, Zhang W, Yu X, Zhang Y (2013) Porous copper surfaces with improved superhydrophobicity under oil and their application in oil separation and capture from water. Chem Commun 49(75):8410–8412CrossRefGoogle Scholar
  26. 26.
    Pan Q, Wang M, Wang H (2008) Separating small amount of water and hydrophobic solvents by novel superhydrophobic copper meshes. Appl Surf Sci 254(18):6002–6006CrossRefGoogle Scholar
  27. 27.
    Pan Q, Jin H, Wang H (2007) Fabrication of superhydrophobic surfaces on interconnected Cu (OH) 2 nanowires via solution-immersion. Nanotechnology 18(35):355605CrossRefGoogle Scholar
  28. 28.
    Wu X, Shi G (2006) Production and characterization of stable superhydrophobic surfaces based on copper hydroxide nanoneedles mimicking the legs of water striders. J Phys Chem B 110(23):11247–11252CrossRefGoogle Scholar
  29. 29.
    Hou H, Xie Y, Li Q (2005) Large-scale synthesis of single-crystalline quasi-aligned submicrometer CuO ribbons. Cryst Growth Des 5(1):201–205CrossRefGoogle Scholar
  30. 30.
    Ang T, Wee T, Chin W (2004) Three-dimensional self-assembled monolayer (3D SAM) of n-alkanethiols on copper nanoclusters. J Phys Chem B 108(30):11001–11010CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Jun Zhang
    • 1
  • Keju Ji
    • 1
  • Jia Chen
    • 1
  • Yafei Ding
    • 1
  • Zhendong Dai
    • 1
    Email author
  1. 1.Institute of Bio-inspired Structure and Surface EngineeringNanjing University of Aeronautics and AstronauticsNanjingChina

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