Abstract
We succeeded in generating nanopores in a cellulose acetate (CA) matrix under water pressure using copper nitrate (Cu(NO2)2·4H2O) as the additive. The nanopores were produced when the polymer matrix was subjected to isostatic water pressure adding copper(II) nitrate into the CA membrane. The polymer chains were weakened by the plasticization effect of copper(II) nitrate present in the CA membrane. We confirmed that the pore properties were readily changed by water pressure as external physical forces with additive content. The water flux of the CA composite (CA/Cu(NO2)2·4H2O) membrane improved with increasing water pressure and additive content. For the CA membrane without the additive, the water flux was not measured from 1 to 8 bar water pressure. In contrast, the water flow of the polymer film with the additive varied from 95.3 to 205.75 L/m2h, depending on the water pressure and additive content.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
H. S. Bang, S. M. Jang, Y. S. Kang and J. Won, J. Membr. Sci., 479, 77 (2015).
I. S. Chae, J. H. Lee, J. Hong, Y. S. Kang and S.W. Kang, J. Eng. Chem., 251, 343 (2014).
I.K. Moideen, A.M. Isloor, A. A. Qaiser, A. F. Ismail and M. S. Abdullah, Korean J. Chem. Eng., 35, 1281 (2018).
J. Albo and T. Tsuru, J. Ind. Eng. Chem. Res., 53, 8845 (2014).
Z. Afsarian and Y. Mansourpanah, Korean J. Chem. Eng., 35, 1867 (2018).
M. Bahrami, J.K. Sabet, A. Hatamnejad, A. Dastbaz and M.A. Moosavian, Korean J. Chem. Eng., 35, 2255 (2018).
K. Xu, Chem. Rev., 104, 4303 (2004).
G. Sung, H. Choe, Y. Choi and J. H. Kim, Korean J. Chem. Eng., 35, 1045 (2018).
L. Pan, H. Wang, C. Wu, C. Liao and L. Li, ACS. Appl. Mater. Interfaces, 7, 16003 (2015).
Q. Xu, Q. Kong, Z. Liu, X. Wang, R. Liu, J. Zhang, L. Yue, Y. Duan and G. Cui, ACS Sustainable Chem. Eng., 2, 194 (2014).
W.G. Lee, J. Hwang and S.W. Kang, Chem. Eng. J., 284, 37 (2016).
C. Xie, H. Li, L. Li, S. Yu and F. Liu, J. Hazard. Mater., 151, 847 (2008).
P.K. Singh, B. Bhattacharya, R. M. Mehra and H.W. Rhee, J. Curr. Appl. Phys., 11, 616 (2011).
M. P. Scott, M. Rahman and C. S. Brazel, J. Eur. Polym., 39, 1947 (2003).
W.G. Lee, D. H. Kim, W. C. Jeon, S. K. Kwak, S. J. Kang and S.W. Kang, Sci. Rep., 1287, 1 (2017).
Acknowledgements
This work was supported by a 2018 Sangmyung University research fund.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lee, W.G., Kang, S.W. Preparation and characterization of porous cellulose acetate with copper (II) nitrate additives for separator applications. Korean J. Chem. Eng. 37, 921–924 (2020). https://doi.org/10.1007/s11814-020-0494-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-020-0494-5