Coating of mercapto modified silica on iron sand magnetic material for Au(III) adsorption in aqueous solution

Karbeka, Martasiana and Nuryono, Nuryono and Suyanta, Suyanta (2020) Coating of mercapto modified silica on iron sand magnetic material for Au(III) adsorption in aqueous solution. In: International Seminar on Chemical Engineering Soehadi Reksowardojo (STKSR), 7-9 Oktober 2019, Kupang, Indonesia.

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Abstract

The functionalized silica coating mercapto on iron sand magnetic material (MM/SiO2/MBI)has been done through sol-gel process. The successfully synthesized material is used as adsorbent (MM/SiO2/MBI) in the Adsorpi Au (III) process. Material characterization is carried out with an adsorbent stability test against acids. Adsorption is performed in a batch system and the unadsorped Au (III) ion is analyzed with the Atomic Absorption Spectrophotometer (AAS). Characterization results indicate the synthesis of PB/SiO2-MBI adsorbent has been successfully performed. The coating of iron sand magnetic material enhances stability to acid. ADsorbent (MM/SiO2/MBI) is capable of adjudisorate ion Au (III) with the highest adsorption occurring at pH 1. Kinetics review indicates that the adsorption of the ion (III) is following the second-order pseudo kinetics with a value of k 3.57 10-3 g/mg. Minute and adsorption isotherm follows the isotherm pattern of Langmuir with an adsorption capacity of 125 mg/g. © Published under licence by IOP Publishing Ltd.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Cited by: 2; Conference name: 2019 International Seminar on Chemical Engineering Soehadi Reksowardojo, STKSR 2019; Conference date: 7 October 2019 through 9 October 2019; Conference code: 160662; All Open Access, Bronze Open Access
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Mathematics and Natural Sciences > Chemistry Department
Depositing User: Sri JUNANDI
Date Deposited: 20 May 2025 01:03
Last Modified: 20 May 2025 01:03
URI: https://ir.lib.ugm.ac.id/id/eprint/16836

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