Study of Mangosteen Peel (Garcinia mangostana L.) Waste Capability to Recover Au(III) and Ag(I) in Aqueous Solution

Mellia Harumi, MH and Rian Kurniawan, RK and Agustiwandina Saputri, AS and Dian Hanna Saraswati, DHS and Meissha Ayu Ardini, MAA and Sri Sudiono, SS (2020) Study of Mangosteen Peel (Garcinia mangostana L.) Waste Capability to Recover Au(III) and Ag(I) in Aqueous Solution. Study of Mangosteen Peel (Garcinia mangostana L.) Waste Capability to Recover Au(III) and Ag(I) in Aqueous Solution, 21 (1).

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Abstract

Electronic waste (e-waste) has been confirmed containing some precious metals such as gold and silver. Mangosteen peel waste as eco-friendly adsorbent has been studied to recover Au(III) and Ag(I) successfully. Recovery was started through adsorbent preparation, consisting of soxhlet extraction and maceration. About 100 mg of adsorbent was dispersed into Au(III) and Ag(I) solutions in various pH conditions (2–6). The result proves that the optimum adsorptions of Au(III) and Ag(I) are at pH 2 and pH 6, respectively. Au(III) adsorption follows the isotherm model of Langmuir with a maximum capacity of 0.580 mmol/g (114.27 mg/g). Ag(I) adsorption follows the isotherm model of Freundlich with a maximum capacity of 0.511 mmol/g (55.10 mg/g).

Item Type:	Article
Subjects:	500 Science > 540 Chemistry 600 Technology (Applied sciences) > 630 Agriculture 600 Technology (Applied sciences) > 630 Agriculture > Forestry
Divisions:	Faculty of Agricultural Technology
Depositing User:	Ms Mellia Harumi
Date Deposited:	19 Aug 2021 03:42
Last Modified:	27 Sep 2021 05:58
URI:	http://repository.unika.ac.id/id/eprint/26479

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