WAFIRATUL HUSNA, NIM. 09630006 (2014) SINTESIS MAGNETIT TERLAPISI ASAM SALISILAT MENGGUNAKAN METODE KOPRESIPITASI DENGAN BANTUAN GELOMBANG ULTRASONIK (Mag-ASUS) DAN APLIKASINYA UNTUK RECOVERY EMAS. Skripsi thesis, UIN SUNAN KALIJAGA.
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Text (SINTESIS MAGNETIT TERLAPISI ASAM SALISILAT MENGGUNAKAN METODE KOPRESIPITASI DENGAN BANTUAN GELOMBANG ULTRASONIK (Mag-ASUS) DAN APLIKASINYA UNTUK RECOVERY EMAS)
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Text (SINTESIS MAGNETIT TERLAPISI ASAM SALISILAT MENGGUNAKAN METODE KOPRESIPITASI DENGAN BANTUAN GELOMBANG ULTRASONIK (Mag-ASUS) DAN APLIKASINYA UNTUK RECOVERY EMAS)
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Abstract
In this research, the magnetite coated salicylic acid was synthesized through co-precipitation method using ultrasonic wave (Mag-ASUS). This research was analyzed to gold recovery necessity. The main aim of this research is to expand the effectiveness of the materials using in adsorption-reduction [AuCl4]-. The synthesis was done through co-precipitation method at 60oC using 200 kHz ultrasonic wave, NaOH as precipitating agent, solution Fe3+/Fe2+ with molar ratio 2:1 and salicylic acid 0.05 M. Mag-ASUS solid synthesized were characterized using FTIR and XRD. The application of Mag-ASUS to gold recovery was analyzed by examining the effect of pH, interaction period and adsorption isotherm. The research results show that Mag-ASUS not only has good adsorption capacity, but also has magnetic quality. Hence, the gold recovery was easily done by external magnetic field. The optimum adsorption of HAuCl4 using 10 mg Mag- ASUS was achievedat pH 3. The equilibrium was done for 180 minutes. The adsorption capacity of [AuCl4]- using 2,0x10-4 mol g-1 Mag-ASUS needs 23.6234 kJ mol-1 energy so that it was categorized in chemistry adsorption. This adsorption was categorized in Langmuir isotherm.
| Item Type: | Thesis (Skripsi) |
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| Additional Information: | Pembimbing : Maya Rahmayanti, M.Si |
| Uncontrolled Keywords: | Key words: salicylic acid, magnetite, Mag-ASUS, gold recovery |
| Subjects: | Kimia |
| Divisions: | Fakultas Sains dan Teknologi > Kimia (S1) |
| Depositing User: | Miftahul Ulum [IT Staff] |
| Date Deposited: | 19 Mar 2014 08:59 |
| Last Modified: | 18 Feb 2016 08:50 |
| URI: | http://digilib.uin-suka.ac.id/id/eprint/11053 |
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