ANALYSIS OF ETHANOL ADDITION ON THE FORMATION OF CATIONIC SURFACTANT MICELLES AND ITS IMPLICATION ON CESIUM DESORPTION FROM KAOLINITE
Abstract
This research investigates the impact of adding ethanol to the preparation of cationic surfactant tetradecyltrimethylammonium bromide (TDAB) solutions on the formation of micelles and the efficiency of cesium ions (Cs) desorption from kaolinite surface. The results of the study demonstrate that an increase in TDAB concentration enhances Cs desorption efficiency, reaching a maximum desorption of approximately 84%, attributed to the significant positive charge of the formed micelles. However, the addition of ethanol results in smaller micelles with lower positive charges, consequently reducing the efficiency of Cs ion desorption. Furthermore, the addition of ethanol also raises the critical micelle concentration (CMC), indicating the potential for micelle formation at higher concentrations. The findings of this study offer crucial insights into understanding the complex interactions among surfactants, ethanol, and mineral surfaces, and their relevance in mineral ion recovery applications.
References
2. Hoeve, J. E. T and Jacobson, M. Z. (2012). Worldwide health effects of the Fukushima Daiichi nuclear accident. Energy Environ. Sci., 5(9), 8743–8757.
3. Tsubokura, M., Nomura, S., Sakaihara, K., Kato, S., Leppold, C., Furutani, T., Morita, T., Oikawa, T., and Kanazawa, Y. (2016). Estimated association between dwelling soil contamination and internal radiation contamination levels after the 2011 Fukushima Daiichi nuclear accident in Japan. BMJ Open, 6, e010970.
4. Kozai, N., Ohnuki, T., Arisaka, M., Watanabe., Sakamoto., F., Yamasaki, S., and Jiang, M. (2012). Chemical states of fallout radioactive Cs in the soils deposited at Fukushima Daiichi Nuclear Power Plant accident. J. Nucl. Sci. Technol, 49(5), 473-478.
5. Kaneko, M., Iwata, H., Shiotsu, H., Masaki, S., Kawamoto, Y., Yamasaki, S., Nakamatsu, Y., Imoto, J., Furuki, G., Ochiai, A., Nanba, K., Ohnuki, T., Ewing, R. C., and Utsunomiya, S .(2015). Radioactive Cs in the severely contaminated soils near the Fukushima Daiichi nuclear power plant. Front. Energy Res., 3(37), 1-10.
6. Park, C. W., Kim, B. H., Yang, H.-M., Seo, B.-K., Moon, J.-K., and Lee, K.-W. (2018). Removal of cesium ions from clays by cationic surfactant intercalation. Chemosphere,168, 1068-1074.
7. Wijayanto, H. and Nakashima, S. (2022). Influence of head group structure of cationic surfactants on the desorption of cesium from clays and clay minerals. Appl. Clay Sci., 228, 106649.
8. Feng, X., Hu, G., Meng, X., Ding, Y., Zhang, S., and Yang, M. (2009). Influence of ethanol addition on the modification of montmorillonite by hexadecyl trimethylammonium bromide. Appl. Clay Sci., 45(4), 239-243.
9. Park, S. M. Lee, J., Jeon, E. K., Kang, S., Alam, M. S., Tsang, D. C. W., Alessi, D. S., Baek, K. (2019). Adsorption characteristics of cesium on the clay minerals: Structural change under wetting and drying condition. Geoderma, 340, 49-54.
10. Aguiar, J., Molina-Bolívar, J. A., Peula-García, J. M., and Ruiz, C. C. (2002). Thermodynamics and Micellar Properties of Tetradecyltrimethylammonium Bromide in Formamide–Water Mixtures. J. Colloid Interface Sci. 255(2), 382-390.
11. Basuki, T., Inada, K., and Nakashima, S. (2020). Examination of Cs tolerant bacteria interaction with Cs+ in aqueous solution and soil by using 137Cs tracer. AIP Conf. Proc., 2295, 020007.
12. Ruiz, C. C, Díaz-López, L., and Aguiar, J. (2007). Self-assembly of tetradecyltrimethylammonium bromide in glycerol aqueous mixtures: A thermodynamic and structural study. J. Colloid Interface Sci., vol. 305(2), 293-300.
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