Adsorption of [AuCl4]- on Iron Sand Magnetic Material Coated with Aminobezimidazol Modified Silica

Rettob, Abraham Laurens and Nuryono, Nuryono and Pasaribu, Yenni Pintauli and Buyang, Yorinda and Waremra, Richard Samuel (2018) Adsorption of [AuCl4]- on Iron Sand Magnetic Material Coated with Aminobezimidazol Modified Silica. In: International Conference on Science and Technology (ICST 2018), 18-19 October 2018, Bali Nusa Dua Convention Center.

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Adsorption of [AuCl4]- using aminobenzimidazole modified silica coated on iron sand magnetic material (MMSA) was carried out. MMSA was synthesized via sol gel process. MMSA was characterized by Fourier Transform Infrared (FT-IR) spectrophotometer and X-ray diffractometer. The ability of MMSA to adsorb [AuCl4]- was tested in a batch system as a function of pH, contact time, and adsorbate concentration. The adsorption kinetics was evaluated with pseudo first-order and pseudo second-order models, while adsorption isotherms was studied based on the Langmuir and Freundlich models. Characterization results indicated that MMSA was successfully synthesized. Adsorption kinetics of [AuCl4]- on BMSA followed pseudo second-order model with a rate constant (k) of 1.54 x 10-3 g mg-1 min-1. MMSA shows a linear plot of the Langmuir isotherm model with adsorption capacity of 16.90 mg g-1. The results obtained indicate that MMSA could used to adsorb [AuCl4]- or other metal ions in environmental with high acidity

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: [AuCl4]-, silica, iron sand, aminobenzimidazole
Subjects: Q Science > QD Chemistry
Divisions: Fakultas Keguruan dan Ilmu Pendidikan > Pendidikan Kimia
Depositing User: Yenni Pintauli Pasaribu
Date Deposited: 31 Jul 2019 02:51
Last Modified: 12 Aug 2019 18:57

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