Georgian, Virezo (2020) Optimasi Reaksi Konversi Selulosa Menjadi Asam Laktat Dengan Katalis Mg0,95Ni0,05F2. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada penelitian ini katalis magnesium fluorida dengan di doping nikel disintesis dengan metode sol gel. Katalis dikarakterisasi dengan difraksi sinar-X, FTIR, adsorpsi piridin-FTIR dan adsorpsi N2. Hasil karakterisasi menunjukan bahwa proses doping Ni pada katalis MgF2 berjalan dengan baik dengan sisi asam Lewis dan Brønsted, SBET, dan volume pori masing-masing sebesar 0,117, 0,047, 12,97 m2/g dan 0,093 cm3/g. Uji kinerja katalis dilakukan pada reaksi konversi selulosa menjadi asam laktat dengan optimasi terhadap beberapa faktor yang berpengaruh terhadap reaksi yaitu suhu, waktu, massa katalis, dan volume HCl. Berdasarkan hasil optimasi dari faktor-faktor tersebut diperoleh kondisi optimum yaitu pada suhu 240 °C, waktu reaksi 3 jam, massa katalis 0,06 gram, dan volume HCl 0,03% sebesar 50 mL dengan yield asam laktat optimum sebesar 60,02%.
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In this study magnesium fluoride catalyst doped by nickel was synthesized by the sol gel method. The catalyst was characterized by X-ray diffraction, FTIR, pyridine-FTIR adsorption and N2 adsorption. Characterization results showed that the Ni doping process on the MgF2 catalyst worked well with Lewis and Brønsted acid sites, SBET, and pore volume values are 0.117, 0.047, 12.97 m2/g and 0.093 cm3/g. The catalyst performance has been test on the conversion of cellulose into lactic acid with the optimization of several factors that affect the reaction, namely temperature, time, catalyst mass, and volume of HCl. Based on the optimization results from these factors, the optimum conditions are obtained at a temperature of 240 °C, 3 hours of reaction time, 0.06 gram of catalyst mass , and a 50 mL volume of HCl 0.03% with an optimum lactic acid yield of 60,02%.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 541.395 Geo o-1 2020 |
| Uncontrolled Keywords: | Katalis, Magnesium fluorida, Doping, Nikel, Selulosa, Asam laktat, Optimasi. |
| Subjects: | Q Science > QD Chemistry > QD501 Catalysis. Catalysts. Q Science > QD Chemistry > QD75.2 Chemistry, Analytic |
| Divisions: | Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Virezo Georgian |
| Date Deposited: | 19 Jun 2023 08:41 |
| Last Modified: | 19 Jun 2023 08:41 |
| URI: | http://repository.its.ac.id/id/eprint/73089 |
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