The Isotherm Adsorption of Cu2+ Ions in Aquoeus Solutions by Cross-Linked Chitosan-Cellulose Membrane Composite

Eko Santoso, Hendro Yuwono, Yohana Ratnawati


The isotherm adsorptions of Cu2+ ions in aqueous solutions by cross-linked chitosan-cellulose composite membranes were investigated. The equilibrium isotherm adsorption studies were done in a batch system. The composite membranes have been prepared by coating 1 %, 2%, and 3 % (m/v) chitosan solution containing 1 % (m/v) acetic acid onto the grade 4 whatman paper filter and cross-linked by glutaraldehide. The effects of polyethylene glycol additive as a porogen agent of the composite membranes on the adsorption abilities were investigated also. The linear regression method was used to fit the adsorption data with the Langmuir model dan the Freundlich model. The fitting results show that the adsorption data more fit to the Langmuir model with the correlation coefficient value R2 higher than 0.97. The fitting of adsorption data to the Freundlich model result the correlation coefficient value R2 between 0.84–0.88. Furthermore, the Langmuir model was used to calculate the maximum adsorption capacity per surface area unit of the composite membrane (Qm) and the maximum adsorption capacity per weight unit of the composite membrane (Km). The results show that Qm increase with the increasing of chitosan concentration. The additions of PEG have increased Qm too. But 5% (m/v) PEG has increased Qm more higher than 10% (m/v) PEG. However, both the increasing of chitosan and the addition of PEG have decreased Km.


Adsorption; Membrane; Composite; Cellulose; and Chitosan

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Quek, SY., Wase, DAJ., and Forster, CF., “The use of sago waste for the sorption of lead and copper”, Water SA, Vol. 24, No. 3, pp. 251-256. 1998.

Schmuhl, R., Krieg, H.M., and Keizer, K., “Adsorption of Cu(II) and Cr(VI) ions by Chitosan : Kinetics and Equilibrium Studies”, Water SA, Vol. 27, No. 1, pp. 79–86. 2001.

Jonsson-Charrier, M., et al, “Vanandium (IV) sorption by chitosan : kinetics and and equilibrium”, wat. Res., 30, 2, pp. 465-475. 1996.

Bassi, Prasher, and Simpson, “Removal of Selected Metal Ions from Aqueous Solutions Using Chitosan Flakes”, Separation Science and Technology, 35(4), pp. 547–560. 2000.

Verbych, S., Bryk, M., and Chornokur, G., “Removal of Copper(II) from Aqueous Solutions by Chitosan Adsorption”, Separation Science and Technology, 40, pp. 1749–1759. 2005.

Lima, I.S. and Airoldi, C., “A Thermodynamic investigation on chitosan-divalent cation inteactions”, Thermochimica Acta, 421, pp. 133-139. 2000.

Ng, J.C.Y., Cheung, and McKay1, “Equilibrium Studies of the Sorption of Cu(II) Ions onto Chitosan”, Journal of Colloid and Interface Science, 255, pp. 64–74. 2002.

Wan Ngah, W.S., Endud, C.S., and Mayanar, R., “Removal copper (II) ions from aqueous solution onto chitosan and crosslinked chitosan beads”, Ractive and Functional Polymers, 50, 181-190. 2002.

Paiseh da Silva, K.M. and Pais Silva, M.I., “Copper sorption from diesel oil on chitin and chitosan polymers”, Colloids and Surfaces A : Physico chem.. Eng. Aspects, 237, pp. 15-21. 2004.

Karthikeyan, G., Anbalagan, K., Andal, N.M., “Adsorption dynamics and equilibrium studies of Zn (II) onto chitosan”, Indian J. chem. Sci., 116, 2, pp. 119-127. 2004.

Boddu, V.M. and Smith, E.D., “Composite Chitosan Biosorbent For Adsorption of Heavy Metals From Wastewaters”, Available : [http://www.asc2002. com/manuscripts/E/ EP-01Standby.pdf] (tnggal akses : 20 Januari 2003). 2002.

Kalyani et al, “Removal of copper and nickel from aqeous solutions using chitosan coated on perlite as biosorbent”, Separation Science and Technology, 40, pp. 1483–1495. 2005.

Kumar, M.N.V., “A Review of chitin and chitosan applications”, Reactive and Functional Polymers, 46, pp. 1-27. 2000.

Yusroni, A., “Pengaruh derajat deasetilasi terhadap persen berat zat pengikat silang, kuat tarik dan morfologi membran khitosan”, Skripsi (dibimbing oleh Eko Santoso), Kimia-FMIPA ITS, Surabaya. 2002.

Al-Maliki, K., “Studi deasetilasi bertahap pada pengaruh besarnya derajat deasetilasi dan massa molekul rata-rata khitosan ( poly-2-Amino-2 deoksi-b-D-Glukosa ) dalam NaOH pekat”, Skripsi (dibimbing oleh Eko Santoso), Kimia-FMIPA ITS, Surabaya. 2005.

Rabek F., Jan, Experimental methods in polymer chemistry, John Wiley and Sons, New York. 1980.

Ahmad Khan, T., “Reporting degree of deacetylation values of chitosan : the influence of analytical methods”, J Pharm. Pharmaceut. Sci. 5(3):205-212. 2002.

Billmeyer Jr., F.W., Textbook of Polymer Science, 3rd ed., John Wiley and Sons, hal. 420. 1984.

Knaul, J.Z., Kasaai, M.R., Bui, V.T., and Creber, K.A.M., “Characterization of deacetylated chitosan and chitosan molecular weight review”, Can. J. Chem., 76, 1699-1706. 1998.

Yang, L., Hsiao, W.W., and Chen, P., “Chitosan-Cellulose composite membrane for affinity purification of biopolymers and immunoadsorption”, J. Membrane Scie., 197, 185-187. 2002.

Kaminski W. and Modrzejewska Z., “Application of chitosan membranes in separation of heavy metal ions”, Sep. Sci. Technol., 32, 16, pp. 2659 - 2668. 1997.

Miller, J.C. dan Miller, C.N., (1991), Statistik untuk kimia analitik, ITB, Bandung. 1991.



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