Journal of Bionic Engineering

, Volume 16, Issue 1, pp 38–46 | Cite as

Magnetically Driven Superhydrophobic Polyurethane Sponge for High Efficiency Oil/Water Mixtures Separation

  • Xuemei ZhangEmail author
  • Feng Fu
  • Xiaoming Gao
  • Xiufang Hou


Magnetically driven super-hydrophobic materials were prepared by Fe3O4 nanoparticles and stearic acid, which were deposited on the surface of polyurethane sponges. The presence of the Fe3O4 nanoparticles makes the sponge have the magnetic, and the micro-nano hierarchical structure and hydrophobic functional groups lead to the sponge have excellent superhydrophobicity. The as-prepared sponge exhibited excellent absorption capacities for various oils and organic solvents ranging from 23.8 times to 86.7 times of its own weight. Moreover, the oil separation capacities still keep a high value after 50 cycles of squeezing the saturated absorbed as-prepared sponge. All of these satisfactory properties make the as-prepared sponge as a candidate of ideal absorbents for oily industrial wastewater and oil spills in oceans.


superhydrophobic/superoleophilic materials polyurethane sponge magnetic driven oil-water separation continuous separation 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.



This work was supported by the National Nature Science Foundation of China (No. 21406188) and the Natural Science Foundation of the Department of Educational of Shaanxi Province (No. 17JS141). This work was also financially supported by the Training Program of Innovation and Entrepreneurship for Undergraduates of Yan’an University(No. D2017006), Financially supported by school-level research project of Yan’an University (No. YDK2015-68).

Supplementary material

Supplementary material, approximately 24.9 MB.

Supplementary material, approximately 20.2 MB.

Supplementary material, approximately 34.5 MB.

Supplementary material, approximately 26.1 MB.

Supplementary material, approximately 32.2 MB.


  1. [1]
    Mi H Y, Jing X, Xie H, Huang H X, Turng L S. Magnetically driven superhydrophobic silica sponge decorated with hierarchical cobalt nanoparticles for selective oil absorption and oil/water separation. Chemical Engineering Journal, 2018, 337, 541–551.CrossRefGoogle Scholar
  2. [2]
    Sukamanchi R, Mathew D, Santhosh Kumar K. Durable superhydrophobic particles mimicking leafhopper surface: Superoleophilicity and very low surface energy. ACS Sustainable Chemistry, 2016, 5, 252–260.CrossRefGoogle Scholar
  3. [3]
    Gou X L, Guo Z G. Superhydrophobic plant leaves with micro-line structures: An optimal biomimetic objective in bionic engineering. Journal of Bionic Engineering, 2018, 15, 851–858.CrossRefGoogle Scholar
  4. [4]
    Sun T L, Feng L, Gao X F, Jiang L. Bioinspired surfaces with special wettability. Accounts of Chemical Research, 2005, 38, 644–65.CrossRefGoogle Scholar
  5. [5]
    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, 13, 1–29.CrossRefGoogle Scholar
  6. [6]
    Su X J, Li H Q, Lai X J, Zhang L, Wang J, Liao X F, Zeng X R. Vapor-liquid sol-gel approach to fabricating highly durable and robust superhydrophobic polydimethylsiloxane@ silica surface on polyester textile for oil-water separation. ACS Applied Materials & Interfaces, 2017, 9, 28089–28099.CrossRefGoogle Scholar
  7. [7]
    Cao N, Yang B, Barras A, Szunerits S, Boukherroub R. Polyurethane sponge functionalized with superhydrophobic nanodiamond particles for efficient oil/water separation. Chemical Engineering Journal, 2017, 307, 319–325.CrossRefGoogle Scholar
  8. [8]
    Cao N, Lyu Q, Li J, Wang Y, Yang B, Szunerits S, Boukherrou R. Facile synthesis of fluorinated polydopamine/chitosan/reduced graphene oxide composite aerogel for efficient oil/water separation. Chemical Engineering Journal, 2017, 326, 17–28.CrossRefGoogle Scholar
  9. [9]
    Song Y, Liu Y, Zhan B, Kaya C, Stegmaier T, Han Z, Ren L. Fabrication of bioinspired structured superhydrophobic and superoleophilic copper mesh for efficient oil-water separation. Journal of Bionic Engineering, 2017, 14, 497–505.CrossRefGoogle Scholar
  10. [10]
    Su X J, Li H Q, Lai X J, Yang Z P, Chen Z H, Wu W J, Zeng X R. Vacuum-assisted layer-by-layer superhydrophobic carbon nanotubes films with electrothermal and photothermal effects for deicing and controllable manipulation. Journal of Materials Chemistry A, 2018, 6, 16910–16919.CrossRefGoogle Scholar
  11. [11]
    Su X J, Li H Q, Lai X J, Chen Z H, Zeng X R. A highly stretchable and conductive superhydrophobic coating for flexible electronics. ACS Applied Materials & Interfaces, 2018, 10, 10587–10597.CrossRefGoogle Scholar
  12. [12]
    Zhou Q Q, Chen G Q, Xing T L. Facile construction of robust superhydrophobic tea polyphenol/Fe@cotton fabric for self-cleaning and efficient oil-water separation. Cellulose, 2018, 25, 1513–1525.CrossRefGoogle Scholar
  13. [13]
    Kong Z, Wang J R, Lu X, Zhu Y, Jiang L. In situ fastening graphene sheets into a polyurethane sponge for the highly efficient continuous cleanup of oil spills. Nano Research, 2017, 10, 1756–1766.CrossRefGoogle Scholar
  14. [14]
    Wang J T, Wang H F, Geng G H. Highly efficient oil-in-water emulsion and oil layer/water mixture separation based on durably superhydrophobic sponge prepared via a facile route. Marine Pollution Bulletin, 2018, 127, 108–116.CrossRefGoogle Scholar
  15. [15]
    Liu L, Lei J L, Li L J, Zhang R, Mi N Y, Chen H R, Huang D, Li N B. A facile method to fabricate the superhydrophobic magnetic sponge for oil-water separation. Materials Letters, 2017, 195, 66–70.CrossRefGoogle Scholar
  16. [16]
    Li Z T, Lina B, Jiang L W, Lin E C, Chen J, Zhang S J, Tang Y W, He F A, Li D H. Effective preparation of magnetic superhydrophobic Fe3O4/PU sponge for oil-water separation. Applied Surface Science, 2018, 427, 56–64.CrossRefGoogle Scholar
  17. [17]
    Shang B, Wang Y B, Peng B, Deng Z W. Bioinspired poly dopamine particles-assisted construction of superhydrophobic surfaces for oil/water separation. Journal of Colloid and Interface Science, 2016, 482, 240–251.CrossRefGoogle Scholar
  18. [18]
    Liu Y, Ma J K, Wu T, Wang X R, Huang G B, Liu Y, Qiu H X, Li Y, Wang W, Gao J P. Cost-effective reduced graphene oxide-coated polyurethane sponge as a highly efficient and reusable oil-absorbent. ACS Applied Materials & Interfaces, 2013, 5, 10018–10026.CrossRefGoogle Scholar
  19. [19]
    Khanoonkon N, Yoksan R, Ogale A A. Morphological characteristics of stearic acid-grafted starch compatibilized linear low density polyethylene/thermoplastic starch blown film. European Polymer Journal, 2016, 76, 266–277.CrossRefGoogle Scholar
  20. [20]
    Wang J T, Zheng Y. Oil/water mixtures and emulsions separation of stearic acid-functionalized sponge fabricated via a facile one-step coating method. Separation and Purification Technology, 2017, 181, 183–191.CrossRefGoogle Scholar
  21. [21]
    Yang W L, Gao H, Zhao Y, Bi K Q, Li X L. Facile preparation of nitrogen-doped graphene sponge as a highly efficient oil absorption material. Materials Letters, 2016, 178, 95–99.CrossRefGoogle Scholar
  22. [22]
    Su C P, Yang H, Song S, Lu B, Chen R. A magnetic superhydrophilic/oleophobic sponge for continuous oil-water separation. Chemical Engineering Journal, 2017, 309, 366–373.CrossRefGoogle Scholar
  23. [23]
    Liu L, Lei J L, Li L J, Zhang R, Mi N Y, Chen H R, Huang D, Li N B. A facile method to fabricate the superhydrophobic magnetic sponge for oil-water separation. Materials Letters, 2017, 195, 66–70.CrossRefGoogle Scholar
  24. [24]
    Khosravi M, Azizian S. A new kinetic model for absorption of oil spill by porous materials. Microporous & Mesoporous Materials, 2016, 230, 25–29.CrossRefGoogle Scholar
  25. [25]
    Lu Y Q, Wang Y, Liu L J, Yuan W Z. Environmentalfriendly and magnetic/silanized ethyl cellulosesponges as effective and recyclable oil-absorption materials. Carbohydrate Polymers, 2017, 173, 422–430.CrossRefGoogle Scholar
  26. [26]
    Liu C, Yang J, Tang Y C, Yin L T, Tang H, Li C C. Versatile fabrication of the magnetic polymer-based graphene foam and applications for oil–water separation. Colloids & Surfaces A Physicochemical & Engineering Aspects, 2015, 468, 10–16.CrossRefGoogle Scholar
  27. [27]
    Gurav A B. Superhydrophobic/superoleophilic magnetic polyurethane sponge for oil/water separation. RSC Advances, 2015, 5, 68293–68298.CrossRefGoogle Scholar
  28. [28]
    Zhang N, Jian g W, Wang T H, Gu J J, Zhong S T, Zhou S, Xie T, Fu J J. Facile preparation of magnetic poly(styrene-divinylbenzene) foam and its application as an oil absorbent. Industrial & Engineering Chemistry Research, 2015, 54, 11033–11039.CrossRefGoogle Scholar

Copyright information

© Jilin University 2019

Authors and Affiliations

  • Xuemei Zhang
    • 1
    Email author
  • Feng Fu
    • 1
  • Xiaoming Gao
    • 1
  • Xiufang Hou
    • 1
  1. 1.Shaanxi Key Laboratory of Chemical Reaction Engineering, Department of Chemistry and Chemical EngineeringYan’an UniversityYan’anChina

Personalised recommendations