Adlim Adlim(1*), Mohamad Abu Bakar(2)

(1) Jurusan Kimia FKIP Universitas Syiah Kuala Darussalam, Banda Aceh, 23111
(2) School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang
(*) Corresponding Author


Colloidal gold nanoparticles prepared by employing chitosan as the stabilizer in solvent of methanol-acetic acid solution were stable for months without precipitation. The mole ratio of chitosan-gold ions of 5:1 - 30:1 gave dispersed and fine gold particles in range of 9.4-10.4 nm. Gold reduction in chitosan matrix was faster at higher chitosan concentration, and molar ratio of chi : Au, from 5:1 to 40:1. Higher acidity of acetic acid (pH 2-6) led to faster reduction of gold ions. The intensity of gold metal colloid plasmon band increased at higher concentration of acetic acid. Chitosan functioned both as a stabilizer and a reducing agent for gold ions. Gold colloidal particles immobilized on chitosan coated TiO2 as the solid support gave more dispersed and smaller particles (4.6 nm) compared with gold particles supported on TiO2 without chitosan coating.


gold nanoparticles; chitosan; chitosan coated TiO2

Full Text:

Full Text Pdf


[1]   Adlim and Abu Bakar, M., 2008, Indo. J. Chem., 8, 2, 184-188

[2]   Sun, Y and Xia, Y., 2002, Science, 298, 2176-2179.

[3]   Santos, I. P and Marzan, M. L., 2002, Langmuir, 18, 2888-2894.

[4]   Lee C., Wan, C and Wang, Y., 2001, Adv. Funct. Mater., 11, 344-347.

[5]   Yan, X., Liu H and Liew, K. Y., 2001, J. Mater. Chem., 11, 3387-3391.

[6]   Biella, S., Castiglioni, G. L., Fumagalli, C., Prati, L and Rossi, M., 2002, Catal. Today, 72, 43-49.

[7]   Luo, J., Maye, M. M., Lou, Y., Han, L., Hepel, M and Zhong, C. J., 2002, Catal. Today, 77, 127-138.

[8]   Haruta, M and Daté, M., 2001, Appl. Catal. A: General, 222, 427-437.

[9]   Porta, F., Prati, L., Rossi, M., Coluccia, S and Martra, G., 2000, Catal. Today, 61, 165-172.

[10] Carotenuto, G and Nicolais, L., 2003, J. Mater. Chem., 13, 1038-1041.

[11] Adlim, 2006, Indonesian Journal of Chemistry, 6, 1-10.

[12] Adlim, M., Bakar, M. A., Liew. K. Y., Ismail, J., 2004, J. Mol. Catal. A: Chem. 212, 1–149.

[13] Wan Ngah, W. S., Ghani, S. Ab., and Hoon, L. L., 2002, J. Chin. Chem. Soc., 49, 625-628.

[14] Huang, H and Yang, X., 2004, Carbohydr. Res., 339, 2627-2631

[15] Lide, D. R (Chief Ed), 1994, CRC Handbook of Chemistry and Physic, 74th edition, CRC Press, Boca Renton. 

[16] Pouchert, C. J., 1970, The Aldrich Library of Infrared Spectra, Aldrich Chemical. Co. Inc., USA. 

[17] Mayya, K. M., Jain, N., Gole, A., Langevin, D and Sastry, M., 2004, J. Colloid Interface Sci., 270, 133-139.

[18] Gole, A., Kumar, A., Phadtare, S., Mandale, A. B and Sastry, M., 2001, Phys. Chem. Commun., 19, 1-8.

[19] Larock, R. C., 1999, Comprehensive Organic Transformation, A guide to Functional Group Preparation, 2nd edition, Wiley-VCH, New York.

[20] Hoston, D and Just, E. K, 1973, Carbohydr. Res., 29, 173-179.

[21] Bloomfield, M. M, 1992, Chemistry and Living Organism, 5th edition, John Wiley & Sons, New York.

[22] Muzzarelli, R. A.A., 1977, Chitin, Pergamon Press, Oxford.

[23] Roberts, G.A.F.  (Ed.), 1992, Chitin Chemistry, Hongkong: MacMillan

[24] Baba, Y., Masaakia, K and Kawanoa, Y., 1998, React. Funct. Polym., 36, 167-172.


Article Metrics

Abstract views : 455 | views : 1368

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 / 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

Analytics View The Statistics of Indones. J. Chem.