Abstract
The permeable single wall carbon nanotube (SWCNT) film electrodes of high electrical conductivity for filtration of ions are promising for future water treatment technology. The permeable SWCNT film electrodes were obtained by the use of the Zn/Al-based dispersant-aided SWCNT ink. The G band peak position and ID/IG value of Raman spectra do not change before and after the polarization of the SWCNT electrodes, showing the robustness of permeable SWCNT film electrodes. The analysis of N2 adsorption isotherms showed that microporosity and specific surface area of the SWCNT electrodes were larger than those of the pristine SWCNT, due to the debundling of SWCNTs and removal of the caps of SWCNT on the dispersion treatment. Application of the electric voltage above − 3 V to the SWCNT electrodes enhanced markedly the adsorption-mediated permeability of K+ ions, reaching the removability of 90%. The removability dependence of Na+ ions on the initial ion concentration showed that the SWCNT permeation electrodes filter was efficient for diluted Na+ ionic solution. The ions of smaller Stokes radius were adsorbed for the mixed ionic solution of Li+, Na+, K+, Rb+, and Cs+, suggesting that the inner tube space of SWCNT electrodes is important for adsorption of ions.
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References
Al-Shammiri, M., Safar, M.: Multi-effect distillation plants: State of the art, (1999)
Debye, P., Huckel, E.: The theory of electrolytes I. The lowering of the freezing point and related occurrences. Phys. Zeitschrift. 24, 185–206 (1923)
El-Dessouky, H.T., Ettouney, H.M., Al-Roumi, Y.: Multi-stage flash desalination: present and future outlook. Chem. Eng. J. 73, 173–190 (1999). https://doi.org/10.1016/S1385-8947(99)00035-2
Elimelech, M.: The global challenge for adequate and safe water. J. Water Supply Res. Technol. - AQUA. 55, 3–10 (2006). https://doi.org/10.2166/aqua.2005.064
Goh, P.S., Ismail, A.F., Ng, B.C.: Carbon nanotubes for desalination: performance evaluation and current hurdles. Desalination. 308, 2–14 (2013). https://doi.org/10.1016/j.desal.2012.07.040
Greenlee, L.F., Lawler, D.F., Freeman, B.D., Marrot, B., Moulin, P.: Reverse osmosis desalination: water sources, technology, and today’s challenges. Water Res. 43, 2317–2348 (2009). https://doi.org/10.1016/j.watres.2009.03.010
Han, L., Karthikeyan, K.G., Anderson, M.A., Gregory, K.B.: Exploring the impact of pore size distribution on the performance of carbon electrodes for capacitive deionization. J. Colloid Interface Sci. 430, 93–99 (2014). https://doi.org/10.1016/j.jcis.2014.05.015
Kaneko, K.: Determination of pore size and pore size distribution. J. Memb. Sci. 96, 59–89 (1994). https://doi.org/10.1016/0376-7388(94)00126-X
Kukobat, R., Minami, D., Hayashi, T., Hattori, Y., Matsuda, T., Sunaga, M., Bharti, B., Asakura, K., Kaneko, K.: Sol-gel chemistry mediated Zn/Al-based complex dispersant for SWCNT in water without foam formation. Carbon 94, 518–523 (2015). https://doi.org/10.1016/j.carbon.2015.07.025
Kukobat, R., Hayashi, T., Matsuda, T., Sunaga, M., Futamura, R., Sakai, T., Kaneko, K.: Essential role of viscosity of SWCNT inks in homogeneous conducting film formation. Langmuir. 32, 6909–6916 (2016a). https://doi.org/10.1021/acs.langmuir.6b01284.
Kukobat, R., Hayashi, T., Matsuda, T., Sunaga, M., Sakai, T., Futamura, R., Kaneko, K.: Zn/Al complex-SWCNT ink for transparent and conducting homogeneous films by scalable bar coating method. Chem. Phys. Lett. 650, 113–118 (2016b). https://doi.org/10.1016/j.cplett.2016.02.049.
Lee, H.J., Sarfert, F., Strathmann, H., Moon, S.H.: Designing of an electrodialysis desalination plant. Desalination. 142, 267–286 (2002). https://doi.org/10.1016/S0011-9164(02)00208-4
Li, H., Pan, L., Lu, T., Zhan, Y., Nie, C., Sun, Z.: A comparative study on electrosorptive behavior of carbon nanotubes and graphene for capacitive deionization. J. Electroanal. Chem. 653, 40–44 (2011). https://doi.org/10.1016/j.jelechem.2011.01.012
Liu, Y.X., Yuan, D.X., Yan, J.M., Li, Q.L., Ouyang, T.: Electrochemical removal of chromium from aqueous solutions using electrodes of stainless steel nets coated with single wall carbon nanotubes. J. Hazard. Mater. 186, 473–480 (2011). https://doi.org/10.1016/j.jhazmat.2010.11.025
Neimark, A.V., Lin, Y., Ravikovitch, P.I., Thommes, M.: Quenched solid density functional theory and pore size analysis of micro-mesoporous carbons. Carbon. 47, 1617–1628 (2009). https://doi.org/10.1016/j.carbon.2009.01.050
Nightingale, E.R.: Phenomenological theory of ion solvation. Effective radii of hydrated ions. J. Phys. Chem. 63, 1381–1387 (1959). https://doi.org/10.1021/j150579a011
Ohkubo, T., Konishi, T., Hattori, Y., Kanoh, H., Fujikawa, T., Kaneko, K.: Restricted hydration structures of Rb and Br ions confined in slit-shaped carbon nanospace. J. Am. Chem. Soc. 124, 11860–11861 (2002). https://doi.org/10.1021/ja027144t
Oren, Y.: Capacitive deionization (CDI) for desalination and water treatment - past, present and future (a review). Desalination. 228, 10–29 (2008). https://doi.org/10.1016/j.desal.2007.08.005
Setoyama, N., Suzuki, T., Kaneko, K.: Simulation study on the relationship between a high resolution αs-plot and the pore size distribution for activated carbon. Carbon. 36, 1459–1467 (1998). https://doi.org/10.1016/S0008-6223(98)00138-9
Spiegler, K.S., Kedem, O.: Thermodynamics of hyperfiltration (reverse osmosis): criteria for efficient membranes. Desalination. 1, 311–326 (1966). https://doi.org/10.1016/S0011-9164(00)80018-1
Sui, Z., Meng, Q., Zhang, X., Ma, R., Cao, B.: Green synthesis of carbon nanotube–graphene hybrid aerogels and their use as versatile agents for water purification. J. Mater. Chem. 22, 8767 (2012). https://doi.org/10.1039/c2jm00055e
Welgemoed, T.J., Schutte, C.F.: Capacitive deionization technology™: an alternative desalination solution. Desalination. 183, 327–340 (2005). https://doi.org/10.1016/j.desal.2005.02.054
Xu, T., Huang, C.: Electrodialysis-based separation technologies: a critical review. AIChE J. 54, 3147–3159 (2008). https://doi.org/10.1002/aic.11643
Yan, C., Zou, L., Short, R.: Single-walled carbon nanotubes and polyaniline composites for capacitive deionization. Desalination. 290, 125–129 (2012). https://doi.org/10.1016/j.desal.2012.01.017
Younos, T., Tulou, K.E.: Overview of desalination techniques. J. Contemp. Water Res. Educ. (2005). https://doi.org/10.1111/j.1936-704X.2005.mp132001002.x
Zhang, D., Yan, T., Shi, L., Peng, Z., Wen, X., Zhang, J.: Enhanced capacitive deionization performance of graphene/carbon nanotube composites. J. Mater. Chem. 22, 14696–14704 (2012). https://doi.org/10.1039/c2jm31393f
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This work was supported by Takagi Co., Ltd. and partially supported by the OPERA project from JST.
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Tanigaki, N., Murata, K., Kukobat, R. et al. Electric field assisted ion adsorption with nanoporous SWCNT electrodes. Adsorption 25, 1035–1041 (2019). https://doi.org/10.1007/s10450-018-9996-4
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DOI: https://doi.org/10.1007/s10450-018-9996-4