ACADSTAFF UGM
| Title | : | Studi Kinetika Adsorpsi Emas Menggunakan Kulit Mangga (Mangifera indica) Termodifikasi Asam Sulfat |
| Author | : |
RIZKY IBNUFAATIH ARVIANTO (1) KURNIAWAN MAULUDI (2) AMEYLIA KRIS D (3) Mokhammad Fajar Pradipta, S.Si.,M.Eng. (4) |
| Date | : | 0 2019 |
| Keyword | : | adsorben, kulit mangga,emas adsorben, kulit mangga,emas |
| Abstract | : | Gold (Au) recovery techniques that are commoly used were dangerous and have a negative impact on the environment. This study aims to synthesize eco-friendly adsorbent prepared from chemically modified with sulfuric acid from mango peel. The synthesized adsorbent was then applied as a selective absorbent for gold (Au) in solution. Capacity, rate constant and adsorption energy were determined by adsorption kinetics test. The synthetic of adsorbent was carried out by H2SO4 modification to form a cross-link structure with mango peel as a basic material. Synthesized products before and after adsorption are characterized by FTIR and SEM. Data on gold content after the adsorption process was measured by AAS. FTIR spectra showed the synthesis of sulfuric modified mango peel adsorbent at 1118,71 cm-1 that associated C-O-C linkage between cellulose was successful and its interaction with gold (Au) was showed at 3433,29 cm-1 broad band that associated the interaction of OH groups and Au(III). SEM image showed differences in the morphology of the adsorbent surface before and after adsorbing gold because the hole closed on adsorbent, it was caused by Au(III) adsorption-reduction. The adsorption process of gold by the adsorbent synthesized followed pseudo-second order kinetics (pseudo-2) with capacity values, rate constants, and adsorption energies were 130 mmol kg-1, 0.1137 mM-1s-1 and 5442.72 J mol-1. |
| Group of Knowledge | : | Kimia |
| Original Language | : | Bahasa Indonesia |
| Level | : | Nasional |
| Status | : |
Published
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