Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Synthesis and Surface Properties of Hierarchical SiO2 Coating Layers by Forming Au Nanoparticles

금 나노입자 형성을 이용한 계층구조 SiO2 코팅층의 제조 및 표면 특성

  • Kim, Ji Yeong (School of Materials Science and Engineering, Inha University) ;
  • Kim, Eun-Kyeong (School of Materials Science and Engineering, Inha University) ;
  • Kim, Sang Sub (School of Materials Science and Engineering, Inha University)
  • 김지영 (인하대학교 신소재공학부) ;
  • 김은경 (인하대학교 신소재공학부) ;
  • 김상섭 (인하대학교 신소재공학부)
  • Received : 2012.10.05
  • Accepted : 2012.11.26
  • Published : 2013.01.27
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Abstract

Superhydrophobic $SiO_2$ layers with a micro-nano hierarchical surface structure were prepared. $SiO_2$ layers deposited via an electrospray method combined with a sol-gel chemical route were rough on the microscale. Au particles were decorated on the surface of the microscale-rough $SiO_2$ layers by use of the photo-reduction process with different intensities ($0.11-1.9mW/cm^2$) and illumination times (60-240 sec) of ultraviolet light. With the aid of nanoscale Au nanoparticles, this consequently resulted in a micro-nano hierarchical surface structure. Subsequent fluorination treatment with a solution containing trichloro(1H,2H,2H,2H-perfluorooctyl)silane fluorinated the hierarchical $SiO_2$ layers. The change in surface roughness factor was in good agreement with that observed for the water contact angle, where the surface roughness factor developed as a measure needed to evaluate the degree of surface roughness. The resulting $SiO_2$ layers revealed excellent repellency toward various liquid droplets with different surface tensions ranging from 46 to 72.3 mN/m. Especially, the micro-nano hierarchical surface created at an illumination intensity of $0.11mW/cm^2$ and illumination time of 60 sec showed the largest water contact angle of $170^{\circ}$. Based on the Cassie-Baxter and Young-Dupre equations, the surface fraction and work of adhesion for the micronano hierarchical $SiO_2$ layers were evaluated. The work of adhesion was estimated to be less than $3{\times}10^{-3}N/m$ for all the liquid droplets. This exceptionally small work of adhesion is likely to be responsible for the strong repellency of the liquids to the micro-nano hierarchical $SiO_2$ layers.

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References

  1. B. Bhushan, K. Koch and Y. C. Jung, Appl. Phys. Lett., 93(9), 093101 (2008). https://doi.org/10.1063/1.2976635
  2. W. Navarrini, T. Brivio, D. Capobianco, M. V. Diamanti, M. Pedeferri, L. Magagnin and G. Resnati, J. Coat. Technol. Res., 8(2), 153 (2011). https://doi.org/10.1007/s11998-010-9293-y
  3. W. Y. Gan, S. W. Lam, K. Chiang, R. Amal, H. Zhao and M. P. Brungs, J. Mater. Chem., 17(10), 952 (2007). https://doi.org/10.1039/b618280a
  4. Y. Hwang, B. Prevo and O. Velev, Kor. J. Mater. Res., 15(5), 285 (2005) (in Korean). https://doi.org/10.3740/MRSK.2005.15.5.285
  5. X. Li, X. Du and J. He, Langmuir, 26(16), 13528 (2010). https://doi.org/10.1021/la1016824
  6. B. G. Trewyn, I. I. Slowing, S. Giri, H. T. Chen and V. S. Y. Lin, Acc. Chem. Res., 40(9), 846 (2007). https://doi.org/10.1021/ar600032u
  7. Q. Gao, Q. Zhu, Y. Guo and C. Q. Yang, Ind. Eng. Chem. Res., 48(22), 9797 (2009). https://doi.org/10.1021/ie9005518
  8. R. D. Narhe and D. A. Beysens, Langmuir, 23(12), 6486 (2007). https://doi.org/10.1021/la062021y
  9. H. J. Tsai and Y. L. Lee, Langmuir, 23(25), 12687 (2007). https://doi.org/10.1021/la702521u
  10. K. Y. Yeh, L. J. Chen and J. Y. Chang, Langmuir, 24(1), 245 (2008). https://doi.org/10.1021/la7020337
  11. A. Nakajima, NPG Asia Materials, 3, 49 (2011). doi:10.1038/asiamat.2011.55
  12. N. Giovambattista, P. G. Debenedetti and P. J. Rossky, Proc. Natl. Acad. Sci. U. S. A., 106(36), 15181 (2009). https://doi.org/10.1073/pnas.0905468106
  13. S. Herminghaus, Europhys. Lett., 52(2), 165 (2000). https://doi.org/10.1209/epl/i2000-00418-8
  14. Y. Ouabbas, A. Chamayou, L. Galet, M. Baron, G. Thomas, P. Grosseau and B. Guilhot, Powder Technol., 190, 200 (2009). https://doi.org/10.1016/j.powtec.2008.04.092
  15. Y. Liu, X. Chen and J. H. Xin, Nanotechnology, 17(13), 3259 (2006). https://doi.org/10.1088/0957-4484/17/13/030
  16. A. Pozzato, S. D. Zilio, G. Fois, D. Vendramin, G. Mistura, M. Belotti, Y. Chen and M. Natali, Microelectron. Eng., 83, 884 (2006). https://doi.org/10.1016/j.mee.2006.01.012
  17. X. Zhang, G. Tang, S. Yang and J. J. Benattar, Langmuir, 26(22), 16828 (2010). https://doi.org/10.1021/la102894c
  18. A. V. Rao, S. S. Latthe, D. Y. Nadargi, H. Hirashima and V. Ganesan, J. Colloid Interface Sci., 332(2), 484 (2009). https://doi.org/10.1016/j.jcis.2009.01.012
  19. H. J. Song and X. Q. Shen, Surf. Interface Anal., 42(3), 165 (2010). https://doi.org/10.1002/sia.3202
  20. Z. Guo, B. Chen, M. Zhang, J. Mu, C. Shao and Y. Liu, J. Colloid Interface Sci., 348(1), 37 (2010). https://doi.org/10.1016/j.jcis.2010.04.035
  21. Y. He, C. Jiang, H. Yin, J. Chen and W. Yuan, J. Colloid Interface Sci., 364(1), 219 (2011). https://doi.org/10.1016/j.jcis.2011.07.030
  22. A. Jaworek, J. Mater. Sci., 42(1), 266 (2007). https://doi.org/10.1007/s10853-006-0842-9
  23. E. K. Kim, T. Hwang and S. S. Kim, J. Colloid Interface Sci., 364(2), 561 (2011). https://doi.org/10.1016/j.jcis.2011.08.077
  24. E. K. Kim, C. S. Lee and S. S. Kim, J. Colloid Interface Sci., 368(1), 599 (2012). https://doi.org/10.1016/j.jcis.2011.11.047
  25. C. T. Hsieh, Y. S. Cheng, S. M. Hsu and J. Y. Lin, Appl. Surf. Sci., 256(16), 4867 (2010). https://doi.org/10.1016/j.apsusc.2010.01.081
  26. Seoulmilk Home Page. Retrieved July 29, 2008 from http://www.seoulmilk.co.kr.
  27. Klaus, R. Espresso-A Feast for the Senses. Chemistry Views Magazine Home Page. Retrieved July 1, 2010 from http://www.chemistryviews.org/details/ezine/712299/Espresso_A_Feast_for_the_Senses.html.
  28. G. Venkateshwarlu, M. Sabath, G. Venugopal, M. Sravanprasad, S. Ghosh and S. Bharathbhushanreddy, Asian J. Pharm. Ana., 2(2), 36 (2012).
  29. Y. Xiu, L. Zhu, D. W. Hess and C. P. Wong, J. Phys. Chem. C, 112(30), 11403 (2008). https://doi.org/10.1021/jp711571k
  30. A. B. D. Cassie and S. Baxter, Trans. Faraday Soc., 40, 546 (1944). https://doi.org/10.1039/tf9444000546