DESORPSI ION EMAS(III) DALAM SISTEM MULTILOGAM Au/Ni/Ag DENGAN MENGGUNAKAN VARIASI TIOUREA-HCl

Julita Manuhutu; Nuryono Nuryono; Sri Juari Santosa

doi:10.30598/MJoCEvol8iss1pp56-63

Julita Manuhutu Departement of Chemistry-FKIP, Pattimura University Ambon
Nuryono Nuryono Departement of Chemistry, FMIPA, Gadjah Mada University â€“ Yogyakarta
Sri Juari Santosa Departement of Chemistry, FMIPA, Gadjah Mada University â€“ Yogyakarta

DOI: https://doi.org/10.30598/MJoCEvol8iss1pp56-63

Keywords: desorption, gold, amino, silica

Abstract

Desorption of gold(III) in multi-metal system Au/Ni/Ag on amino silica hybrid (ASH) column have been studied. ASH was synthesized by sol gel process with sodium silicate (Na₂SiO₃) from rice husk ash (RHA) as precursor. ASH was synthesized by adding 3M of hydrochloride acid solution to the mixture of (3-aminopropyl)-trimethoxysilane and Na₂SiO₃ solution untill pH 7 (neutral). ASH was characterized by infrared spectroscopy (IR) and X-ray diffraction (XRD). Adsorption of multi-metal (Au/Ni/Ag) was carried out with a column technique. The adsorbed metal ions [Au(III), Ni(II), and Ag(I)] were quantitively using atomic absorption spectroscopy (AAS). Desorption of Au(III), Ni(II), and Ag(I) at ASH was conducted by using thioruea in hydrochloride solution with variation of concentration. Total desorption of metal ions was calculated based on AAS analysis. For desorption of multi-metal(Au / Ni / Ag), Au (III) was eluted using 1M HCL is 16,60%; using 0,5 M thiourea in 1M HCl is 57,45%, and with 1M thiourea in 1M HCl is 59,12%.

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References

Bozkurt, S.S., Merdivan, M., 2009, Solid Phase Extraction of Gold (III) on Silica Gel Modified With Benzoylthiourea Prior to Its Determination by Flame Atomic Absorption Spectrometry, Environ. Minot. Assess., 158, 15-21
Brinker, C.J., dan Scherer, W. J., 1990, Sol Gel Science: The Physics and Chemistry Sol-Gel Processing, Academic Press, San Diego
Buhani, Narsito, Nuryono, Kunarti, E.S., 2009, Amino and Mercapto-Silica Hybrid for Cd(II) Adsorption in Aqueous Solution, Indo. J. Chem, 9(2), 170-176
Buhani, Narsito, Nuryono, Kunarti, E.S., 2010, Production of Metal Ion Imprinted Polymer From Mercaptoâ€“Silica through Solâ€“Gel Process as Selective Adsorbent of Cadmium, Desalination, 251, 83-89
Deschenes, G., 1998, Leaching of Gold from a Chalcopyrite Concentrate by Thiourea, Hydrometallurgy, 20, 179-202
Hamdiani S., 2010, Adsorpsi-Desorpsi dan Selektivitas Hibrida Merkapto Silika terhadap Ion Emas (III) dalam Sistem Multilogam Au/Cu, Au/Ni, dan Au/Cu/Ni, Tesis, Program Pascasarjana, FMIPA UGM, Yogyakarta
Huheey, E.J., Keiter. E.A., Keiter, R.L., 1993, Inorganic Chemistry Principle of Structure and Reactivity 4th edition, Harper Collins College Publisher, New York
Jiang, N., Chang, X., Zheng, H., Hea, Q., Hua, Z., 2006, Selective Solid-Phase Extraction of Nickel(II) Using a Surface-Imprinted Silica Gel Sorbent, Anal. Chim. Acta., 577, 225â€“231
Kalapathy, U., Proctor, A., Shultz, J., 2002, An Improved Method for Production of Silica From Rice Hull Ash, Bioresource Technology., 85, 285â€“289
Lacoste-Bouchet, P., Deschnes, G., Ghali, E., 1998, Thiourea Leaching of a Copper-Gold Ore Using Statistical Design, Hydrometallurgy, 47, 189-203
Lam, K.F., Fong, C.M., Yeung, K.L, Mckay, G., 2008, Selective Adsorption of Gold from Complex Mixtures Using Mesoporous Adsorbent, J. Chem. Eng., 145, 185â€“195
Li, J., dan Miller, J.D., 2007, Reaction Kinetics of Gold Dissolution in Acid Thiourea Solution Using Ferric Sulfate as Antioxidant., Hydrometallurgy, 89, 279-288
Limatahu, N.A., 2007, Kajian Adsorpsi Multilogam Ag(I), Ni(II), Cu(II), Pb(II) dan Cr(III) pada Hibrida Amino Silika dari Abu Sekam Padi, Tesis, Program Pascasarjana, FMIPA UGM, Yogyakarta
Martell, E.A., dan Hancock, R.D., 1996, Metal Complexes in Aqueos Solution, Plenum Press, New York
Nuryono, Kunarti, E.S., 2009, Teknologi sol-gel, modifikasi silika dan aplikasinya, Kelompok Material Jurusan Kimia FMIPA UGM, Yogyakarta
Oscik, J., 1982, Adsorption, John Willey and Sons, New York
Peng, L., Guang-feng, L., Da-lin, C., Shao-yi, C., Ning, T., 2009, Adsorption Properties of Ag(I), Au(III), Pd(II) and Pt(IV) Ions on Commercial 717 Anion-Exchange Resin, Trans. Nonferrous Met. Soc. China., 19, 1509-1513
Sastrohamidjojo, H., 1992, Spektroskopi Infra Merah, Liberty, Yogyakarta
Sakti, S.C.W., 2010, Sintesis dan Karakterisasi Hibrida Amino Silika Tercetak Ionik Sebagai Adsorben Ion Au(III), Tesis, Program Pascasarjana, FMIPA UGM, Yogyakarta
Taslimah, S., Nuryono, Narsito, 2005, Sintesis bahan hibrida amino-silika dari abu sekam padi melalui proses sol gel, JKSA, 8(1)
Tong, A., Akama, Y., 1990, Selective Preconcentration of Au( III), Pt( IV) and Pd( II) on Silica Gel Modified with Î³-aminopropyltriethoxysilane, Anal. Chim. Acta., 230, 179-181
Walcarius, A., Etienne, M., Bessie`re, J., 2002, Rate of Access to the Binding Sites in Organically Modified Silicates. 1. Amorphous Silica Gels Grafted with Amine or Thiol Groups, Chem. Mater., 14, 2757-2766