Sunardi Sunardi(1*), Yateman Yateman Arryanto(2), Sutarno Sutarno(3)

(1) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Lambung Mangkurat University, Jl. A. Yani Km. 35,8 Banjarbaru 70714
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Kotak Pos 21 Bls Yogyakarta 55281
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Kotak Pos 21 Bls Yogyakarta 55281
(*) Corresponding Author


Preparation, activation and adsorption study of natural kaolin from Tatakan, Tapin, South Kalimantan have been conducted. The activation of kaolin was done using 6 M HCl solutions at 90 °C for 3 h. The characterizations of kaolin were carried out by Fourier Transform Infrared, X-ray diffraction, and surface area analyzer. Adsorption parameters studied included the effect of pH, contact time, and concentration of gibberellic acid (GA3) onto kaolin samples. The amount of gibberellic acid adsorbed was determined using UV spectrophotometer. The adsorption capacity of kaolin was determined by Langmuir adsorption isotherm model. The result showed that activation of kaolin was resulted the larger specific surface area and more homogeneous composition of kaolin without any destruction of kaolin structure. Adsorption of gibberellic acid onto kaolin before and after activation showed that optimal adsorption was obtained at pH » 7 and reached the equilibrium within 4 h. The calculations result by Langmuir adsorption isotherm model showed that the increasing of adsorption capacity of acid activated kaolin is about 35%.


kaolin; acid activated; gibberellic acid

Full Text:

Full Text PDF


[1] Liang, J.F., Li, Y.T., and Yang, V.C., 2000, J. Pharm. Sci., 89, 8, 979–990.

[2] Park, S.W., Kim, Y.I., Chung, K.H., Hong, S.I., and Kim, S.W., 2002, React. Funct. Polym., 5, 79–92.

[3] Qiu, D., and Hou, W., 2009, Colloids Surf., A, 336, 12–17.

[4] Carretero, M.I., 2002, Appl. Clay Sci., 21, 3-4, 155–163.

[5] Rahman, M.B., Tajudin, S.M., Hussein, M.Z., Rahman, R.N.Z.R.A., Salleh, A.B., and Basri, M., 2005, Appl. Clay Sci., 29, 2, 111–116.

[6] Belver, C., Muoz, M.A.B., and Vicente, M.A., 2002, Chem. Mater., 14, 2033–2043.

[7] Ergun, N., Topcuoglu, S.F., and Yildiz, A., 2002, Turk. J. Bot., 26, 13–18.

[8] Sunardi, Arryanto, Y., and Sutarno, 2009, Indo. J. Chem., 9, 3, 373–379.

[9] Hall, K.R., Eagleton, L.C., Acrivos, A., and Vermeulen, T., 1966, Ind. Eng. Chem. Fundam., 5, 212–223.

[10] Falaras, P., Kovanis, I., Lezou, F., and Seigara, G., 1999, Clay Miner., 34, 221–232.

[11] Ekosse, G.E., 2005, J. Appl. Sci. Environ. Manage., 9, 2, 43–48.

[12] Jozefaciuk, G., 2002, Clays Clay Miner., 50, 647–656.

[13] Komadel, P., Bujdak, J., Madejova, J., Sucha, V., and Elsas, F., 1996, Clay Miner., 31, 333–345.

[14] Saikia, N.J., Bharali, D.J., Sengupta, P., Bordoloi, D., Goswamee, R.L., Saikia, P.C., and Borthakur, 2003, Appl. Clay Sci., 24, 93–103.

[15] Tan, K.H., 1982, Dasar-dasar Kimia Tanah. Penerjemah Goenadi, D.H., cet. 5, Universitas Gadjah Mada Press, Yogyakarta.

[16] Hradil, D., Hostomsky, J., and Soukupova, J., 2002, Geologica Carphica, 53, 117–121.

[17] Lee, S.Y., and Kim, S.J., 2002, Appl. Clay Sci., 22, 55–63.

[18] Mahmoud, S., Hammoudeh, A., and Al Naomi, M., 2003, Clays Clay Miner., 51, 52–57.

[19] Nandi, B.K., Goswami, A., and Purkait, M.K., 2009, Appl. Clay Sci., 42, 583–590.

[20] Nandi, B.K., Goswami, A., and Purkait, M.K., 2009, J. Hazard. Mater., 161, 387–395.

[21] Vimonses, V., Lei, S., Jin, B., Chow, C.W.K., and Saint, C., 2009, Appl. Clay Sci., 43, 465–472.

[22] Vimonses, V., Lei, S., Jin, B., Chow, C.W.K., and Saint, C., 2009, Chem. Eng. J., 148, 354–364.

[23] Zhou, X., Huang, Q., Chen, S., and Yu, Z., 2005, Appl. Clay Sci., 30, 87–93.

[24] Ozcan, A.S., Erdem, B., and Özcan, A., 2005, Colloids Surf., A, 266, 73–81.

[25] Goodwin, J.W., 2004, Colloids and Interfaces with Surfactant and Polymer-An Introduction, John Wiley & Son, Ltd., Sussex, England.

[26] Lopez, Y.M.C., 2005., FTIR Microscopy of RDX interaction with clay mineral, Thesis, University of Puerto Rico, Mayagues.

[27] Emmanuel, U., Kayode, O.A., and Folasegun, A.D., 2008, J. Hazard. Mater., 157, 397–409.

[28] Komandel, P., 2003, Clay Miner., 38, 127–138.

[29] Bhattacharyya, K.G., and Gupta, S.S., 2008, Adv. Colloid Interface Sci. (Accepted Manuscript).


Article Metrics

Abstract views : 1374 | views : 1725

Copyright (c) 2010 Indonesian Journal of Chemistry

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.


Indonesian Journal of Chemistry (ISSN 1411-9420 /e-ISSN 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

Analytics View The Statistics of Indones. J. Chem.