DOI QR코드

DOI QR Code

산화 그래핀 맴브레인의 물투과 속도와 차압 조건 간 상관관계에 대한 실험적 연구

Experimental Study of Water Penetration Rate Via Graphene Oxide Membrane According to Driven Pressure Difference

  • Kim, Ji-Min (Dept. of Technology Education, Korea National University of Education)
  • 투고 : 2018.11.03
  • 심사 : 2018.11.30
  • 발행 : 2018.12.28

초록

Graphene oxide (GO) laminate is a new promising material for water purification system, which has extraordinary permeability only for water molecule. It consists of numerous nano-channels, in which water molecules could be nano-confined, resulting in slip of the molecules for very fast transportation speed. In this study, water penetration rate via different thickness of GO membrane according to driven pressures are measured experimentally, so that speed of water molecules and permeability are evaluated. Generally, water penetration rate via a membrane with macroscopic-sized channel increases linearly with pressure difference between up and bottom side of the membrane, but that via GO membrane approaches asymptotic value (i.e. saturation) as like a log function. Moreover, the permeability of GO membrane was observed in inverse proportion to its thickness. Based on the experimental observations, a correlation for volume flux via GO membrane was suggested with respect to its thickness and external pressure difference.

키워드

참고문헌

  1. S.C. Park, C.W. Lee, Y.W. Kwon, "An Experimental Study on Performance of Smoke Reduction System using STS Filter," Journal of Korean Society of Mechchnical Technology, Vol. 12(1), pp. 1-8, 2010
  2. J. Yoon, Y. Jeon, S. Park, "A Study on the Characteristics of Temperature Distribution according to Length of Inlet Pipe in a Diesel Particulate Filter," Journal of Korean Society of Mechchnical Technology, Vol. 14(5), pp. 17-23, 2012
  3. D. Li, M.B. Muller, S. Gilje, R.B. Kaner, G.G. Wallace, "Processable aqueous dispersions of graphene nanosheets," Nat Nanotechnol, 3, pp. 101-105, 2008 https://doi.org/10.1038/nnano.2007.451
  4. R.R. Nair, H.A. Wu, P.N. Jayaram, I.V. Grigorieva, A.K. Geim, "Unimpeded permeation of water through helium-leak-tight graphene-based membranes," Science, 335, pp. 442-444, 2012 https://doi.org/10.1126/science.1211694
  5. D.W. Boukhvalov, M.I. Katsnelson, Y.W. Son, "Origin of anomalous water permeation through graphene oxide membrane," Nano Lett, 13, pp. 3930-3935, 2013 https://doi.org/10.1021/nl4020292
  6. G. Algara-Siller, O. Lehtinen, F.C. Wang, R.R. Nair, U. Kaiser, H.A. Wu, A.K. Geim, I.V. Grigorieva, "Square ice in graphene nanocapillaries," Nature, 519, pp. 443-445, 2015 https://doi.org/10.1038/nature14295
  7. F. Caupin, M.W. Cole, S. Balibar, J. Treiner, Absolute limit for the capillary rise of a fluid, EPL (Europhysics Letters), 82, 56004, 2008 https://doi.org/10.1209/0295-5075/82/56004
  8. N. Wei, X. Peng, Z. Xu, Breakdown of fast water transport in graphene oxides, Phys Rev E Stat Nonlin Soft Matter Phys, 89, 012113, 2014 https://doi.org/10.1103/PhysRevE.89.012113
  9. J.M. Kim, J.H. Kim, M.H. Kim, M. Kaviany, H.S. Ahn, "Nanocapillarity in Graphene Oxide Laminate and Its Effect on Critical Heat Flux," Journal of Heat Transfer, 139, 082402, 2017 https://doi.org/10.1115/1.4036282
  10. R.K. Joshi, P. Carbone, F.C. Wang, V.G. Kravets, Y. Su, I.V. Grigorieva, H.A. Wu, A.K. Geim, R.R. Nair, "Precise and ultrafast molecular sieving through graphene oxide membranes," Science, 343, pp. 752-754, 2014 https://doi.org/10.1126/science.1245711
  11. H. Huang, Z. Song, N. Wei, L. Shi, Y. Mao, Y. Ying, L. Sun, Z. Xu, X. Peng, Ultrafast viscous water flow through nanostrand-channelled graphene oxide membranes, Nat Commun, 4, 2979, 2013 https://doi.org/10.1038/ncomms3979
  12. P.C. Carman, Flow of gases through porous media, 1956
  13. P. Sun, H. Liu, K. Wang, M. Zhong, D. Wu, H. Zhu, Ultrafast liquid water transport through graphene-based nanochannels measured by isotope labelling, Chem Commun (Camb), 51, pp. 3251-3254, 2015 https://doi.org/10.1039/C4CC10103K

피인용 문헌

  1. 자동차용 라디에이터 열유동 특성에 관한 수치해석 vol.18, pp.6, 2018, https://doi.org/10.14775/ksmpe.2019.18.6.055