Choiril Azmiyawati(1*), Nuryono Nuryono(2), Narsito Narsito(3)

(1) Department of Chemistry, Universitas Diponegoro, Jl. Prof. Soedarto, Tembalang, Semarang
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Jl. Sekip Utara, Yogyakarta 55281
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Jl. Sekip Utara, Yogyakarta 55281
(*) Corresponding Author


Adsorption of Mg(II) and Ca(II) on disulfonato-silica hybrid (DSSH) in the aqueous solution has been studied. The hybrid was synthesized by sol-gel process with sodium silicate solution from rice hull ash, chloroprophyltrimethoxysilane (CTS) and 4-amino-5-hydroxy-naphtalene-2,7-disulfonic acid monosodium salt (ANSNa) as silica source, cross linker and active group, respectively. Sodium silicate solution was reacted with CTS and ANSNa that were added dropwise. Adsorption of magnesium and calcium ions on DSSH was carried out in a batch system. Solution pH significantly affected magnesium and calcium adsorption and the optimum condition was obtained at pH = 6. The synthesized DSSH showed a high adsorption capacity of 0.0844 mmol/g and 0.1442 mmol/g for Mg(II) and Ca(II), respectively. The adsorption isotherm obtained with Langmuir isotherm model gives the negative values of ΔG°, i.e. -23.334 kJ/mol and -22.757 kJ/mol for Mg(II) and Ca(II), respectively, indicating the spontaneous process of adsorption. Kinetic studies showed that the adsorption of Mg(II) and Ca(II) ions onto HDSS follows the pseudo-second-order kinetics.


adsorption; silica; magnesium; calcium; sulfonate

Full Text:

Full Text Pdf


[1]   Contreras, C., Rosa, G.D.L., Videa, J.R.P., and Torresdey, J.L.G., 2006. J. Hazard. Mater., 133, 1-3, 79–84.

[2]   Petrucci, R.H., 1985, General Chemistry, Principles and Modern Application, 4th ed., Collier Macmillan. Inc.

[3]   Azmiyawati, C., Nuryono, and Narsito, 2005, Indo. J. Chem., 5, 1, 31–35.

[4]   Hofen, K., Weber, S., Chan, C.P.C., and Majewski, P., 2011, Appl. Surf. Sci., 257, 9, 2576–2580.

[5]   Aylward, W.M., and Pickup, P.G., 2008, Electrochim. Acta, 53, 11, 3897–3902.

[6]   Ma, J-Z., Hu, J., and Zhang, Z-J., 2007, Eur. Polym. J., 43, 4169–4177.

[7]   Evangelista, S.M., Deoliviera, E., Castro, G.R., Zara, L.F., and Prado, A.G.S., 2007, Surf. Sci., 601, 10, 2194–2202.

[8]   Das, B., Suneel, K., Venkateswarlu, K., and Ravikanth, B., 2008, Chem. Pharm. Bull., 56, 3, 366–368.

[9]   Kamath, S.R., and Proctor, A., 1997, Arkansas Rice Research Studies.

[10] Ȕnlu, N., and Ersoz, M., 2006, J. Hazard. Mater., 136, 2, 272–280.

[11] Oh, Y-K., Hong, L-Y., Asthana, Y., and Kim, D-P., 2006, J. Ind. Eng. Chem., 12, 6, 911–917.

[12] Troitsky, V., Berzina, T., Shchukin, D., Sukhorukov, G., Erokhin, V., and Fontana, M.P., 2004, Colloids Surf., A, 245, 1-3, 163–168.

[13] Prado, A.G.S., Sales, J.A.A., Carvalho, R.M., Rubim, J.C., and Airoldi, C., 2004, J. Non-Cryst. Solids, 333, 1, 61–67.

[14] Günzler, H., and Gremlich, H-U., 2002, IR Spectroscopy an Introduction, Wiley-VCH, Weinheim.

[15] Ho, Y.S., and Mackay, G., 1999, Process Biochem., 34, 451–465.

[16] Hameed, B.H., Din, A.T.M., and Ahmad, A.L., 2007, J. Hazard. Mater., 141, 3, 819–825.

[17] Ho, Y.S., 2006, J. Hazard. Mater., 136, 3, 681–689.

[18] Langmuir, I., 1918, J. Am. Chem. Soc., 40, 9, 1361–1403.

[19] Ho, Y.S., Huang, C.T., and Huang, H.W., 2002, Process. Biochem., 37, 12, 1421–1430.

[20] Kul, A.R., and Koyuncu, H., 2010, J. Hazard. Mater., 179, 1-3, 332–339.

[21] Freundlich, H.M.F., 1906, Z. Phys. Chem., 57A, 385–470.


Article Metrics

Abstract views : 1074 | views : 1176

Copyright (c) 2012 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 / 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

Analytics View The Statistics of Indones. J. Chem.