Nguyen Thi Hong * , Phan Thi Diem Trang , Tran Nguyen Phuong Lan , Luong Huynh Vu Thanh and Nguyen Dien Trung

* Correspondence: Nguyen Thi Hong (email:

Main Article Content


The adsorption of Co(II) from the simulated solution was investigated using zeolite NaX derived from rice husk ash as an alternative adsorbent. The adsorption behavior of Co(II) depended strongly on the equilibrium pH, Co (II) concentration, zeolite NaX dosage, and reaction time. The high adsorption efficiency of Co(II) by zeolite NaX was obtained under the conditions: pH 3.0, 100 mg/L of Co(II), 5 g/L of zeolite NaX, and a reaction time of 75 min. The loading behavior of Co(II) onto the zeolite NaX was well-fitted to the Freundlich adsorption isotherm and the Co(II) loading capacity by zeolite NaX was around 38 mg/g. The obtained results indicate that synthesized zeolite NaX from rice husk ash is a potential adsorbent to remove cobalt from waste solutions due to its high adsorption.

Keywords: Adsorption, cobalt, loading capacity, zeolite NaX

Article Details


Aşçı, Y. & Kaya, Ş., (2013). Removal of cobalt ions from water by ion-exchange method. Desalination and Water Treatment, 52(1-3), 267-273.

Bernabé, I., Gómez, J. M., Díez, E., Sáez, P., & Rodríguez, A., (2019). Optimization and adsorption-based recovery of cobalt using activated disordered mesoporous carbons. Advances in Materials Science and Engineering, 2019, 1-10.

Chen, X., Chen, Y., Zhou, T., Liu, D., Hu, H., & Fan, S., (2015). Hydrometallurgical recovery of metal values from sulfuric acid leaching liquor of spent lithium-ion batteries. Waste Management, 38, 349-356.

Elboughdiri, N., (2020). The use of natural zeolite to remove heavy metals Cu(II), Pb(II) and Cd(II), from industrial wastewater. Cogent Engineering, 7(1), 1782623.

Getasew, K., Zenaw, A., & Alemu, T., (2020). Adsorption of lead(II), cobalt(II) and iron(II) from aqueous solution by activated carbon prepared from White lupine (GIBITO) HSUK. Journal of Thermodynamics and Catalysis, 11(2), 1-8.

Golmohammadzadeh, R., Rashchi, F., & Vahidi, E., (2017). Recovery of lithium and cobalt from spent lithium-ion batteries using organic acids: Process optimization and kinetic aspects. Waste Management, 64, 244-254.

Hannan, M. A., Hoque, M. M., Hussain, A., Yusof, Y., & Ker, P. J., (2018). State-of-the-art and energy management system of lithium-ion batteries in electric vehicle applications: Issues and recommendations. IEEE Access, 6, 19362-19378.

Holub, M., Balintova, M., & Kovacova, Z., (2018). Evaluation of zeolite adsorption properties for Cu(II) removal from acidic aqueous solutions in fixed-bed column system. Proceedings, 2(20), 1293.

Hong, N. T. & Nhung, D. T. H., (2020). Separation and recovery of Co(II) and Li(I) from spent lithium-ion mobile phone batteries. Can Tho University Journal of Science, 12(2), 60-67.

Igwe, J. C. & Abia, A. A., (2007). Adsorption isotherm studies of Cd(II), Pb(II) and Zn(II) ions bioremediation from aqueous solution using unmodified and EDTA-modified maize cob Ecl. Quím., São Paulo, 32(1), 33-42.

Mendes, F. D. & Martins, A. H., (2004). Selective sorption of nickel and cobalt from sulphate solutions using chelating resins. International Journal of Mineral Processing, 74(1-4), 359-371.

Nguyen, T. & Lee, M., (2018). A review on the separation of lithium ion from leach liquors of primary and secondary resources by solvent extraction with commercial extractants. Processes, 6(5), 55.

Nguyen, T. H., Sohn, S. H., & Lee, M. S., (2013). Removal of Mo and Fe from the cobalt chloride solution by ion exchange during the recovery process from spent hydrodesulfurization catalysts. Industrial & Engineering Chemistry Research, 52(29), 10028-10032.

Oh, Y. J. & Lee, M. S., (2005). Chemical equilibria in a mixed solution of nickel and cobalt chloride. Materials Transactions, 46(1), 59-63.

Osińska, M., (2016). Removal of lead(II), copper(II), cobalt(II) and nickel(II) ions from aqueous solutions using carbon gels. Journal of Sol-Gel Science and Technology, 81(3), 678-692.

Pranolo, Y., Zhang, W., & Cheng, C. Y., (2010). Recovery of metals from spent lithium-ion battery leach solutions with a mixed solvent extractant system. Hydrometallurgy, 102(1-4), 37-42.

Quintero-Almanza, D., Gamiño-Arroyo, Z., Sánchez-Cadena, L. E., Gómez-Castro, F. I., Uribe-Ramírez, A. R., Aguilera-Alvarado, A. F., & Ocampo Carmona, L. M., (2019). Recovery of cobalt from spent lithium-ion mobile phone batteries using liquid-liquid extraction. Batteries, 5(2), 44.

Ramos, S. N. d. C., Xavier, A. L. P., Teodoro, F. S., Gil, L. F., & Gurgel, L. V. A., (2016). Removal of cobalt(II), copper(II), and nickel(II) ions from aqueous solutions using phthalate-functionalized sugarcane bagasse: Mono- and multicomponent adsorption in batch mode. Industrial Crops and Products, 79, 116-130.

Santana Costa, J. A. & Paranhos, C. M., (2018). Systematic evaluation of amorphous silica production from rice husk ashes. Journal of Cleaner Production, 192, 688-697.

Sembiring, S., Simanjuntak, W., Situmeang, R., Riyanto, A., & Sebayang, K., (2016). Preparation of refractory cordierite using amorphous rice husk silica for thermal insulation purposes. Ceramics International, 42(7), 8431-8437.

Sulaymon, A. H., Abid, B. A., & Al-Najar, J. A., (2009). Removal of lead copper chromium and cobalt ions onto granular activated carbon in batch and fixed-bed adsorbers. Chemical Engineering Journal, 155(3), 647-653.

Swain, B., Mishra, C., Jeong, J., Lee, J. C., Hong, H. S., & Pandey, B. D., (2015). Separation of Co(II) and Li(I) with Cyanex 272 using hollow fiber supported liquid membrane: A comparison with flat sheet supported liquid membrane and dispersive solvent extraction process. Chemical Engineering Journal, 271, 61-70.

Tran-Nguyen, P. L., Ly, K. P., Thanh, L. H. V., Angkawijaya, A. E., Santoso, S. P., Tran, N. P. D., Tsai, M. L., & Ju, Y. H., (2021). Facile synthesis of zeolite NaX using rice husk ash without pretreatment. Journal of the Taiwan Institute of Chemical Engineers, 123, 338-345.

Wang, F., Sun, R., Xu, J., Chen, Z., & Kang, M., (2016). Recovery of cobalt from spent lithium ion batteries using sulphuric acid leaching followed by solid-liquid separation and solvent extraction. RSC Advances, 6(88), 85303-85311.

Zanin, E., Scapinello, J., de Oliveira, M., Rambo, C. L., Franscescon, F., Freitas, L., de Mello, J. M. M., Fiori, M. A., Oliveira, J. V., & Dal Magro, J., (2017). Adsorption of heavy metals from wastewater graphic industry using clinoptilolite zeolite as adsorbent. Process Safety and Environmental Protection, 105, 194-200.

Zhu, S. G., He, W. Z., Li, G. M., Zhou, X., Zhang, X. J., & Huang, J. W., (2012). Recovery of Co and Li from spent lithium-ion batteries by combination method of acid leaching and chemical precipitation. Transactions of Nonferrous Metals Society of China, 22(9), 2274-2281.