Lestari, Faurista Agustin (2010) Sintesis Zr-AI-MCM-41 dengan Metode Hidrotermal dan Karakterisasinya. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
MCM-41, dan Zr-AI-MCM-4 1 dengan metode hidrotermal. Hasil sintesis dikarakterisasi menggunakan XRD, FT-IR, dan FTIR piridin. Difra.ktogram XRD dari Zr-AI-MCM-41 ditandai dengan munculnya puncak-puncak karakteristik pada 29 sekitar 2,42-2,56°; 4,06-4,25° dan 4,75-4,78°, sedangkan spektra FTlRnya memiliki pola yang serupa dengan MCM-41 . Hasil pengukuran keasaman dengan FT-IR piridin menunjukkan bahwa AI-MCM-41 mempunyai sisi asam Lewis dan gabungan sisi asam Lewis dan Brensted. Sedangkan Zr-AI-MCM-41 mempunyai sisi asam Br0nsted, disamping kedua sisi asam tersebut. Zr-AI-MCM- 41 dengan rasio Si/(Zr+Al)=25 mempunyai keasaman paling tinggi. Karena itu dapat dikatakan bahwa semakin banyak ion zirkonium yang ditambahkan, maka keasaman padatan yang terbentuk semakin besar.
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In this research, synthesis of AI-MCM-41, Zr-MCM-41, and Zr-Al-MCM-41 materials have been studied with hydrothermal method. The resulting solids were characterized using XRD, FTIR, and pyridine-FTIR. The characterization results showed that the Al-MCM-4 1 and Zr-AI-MCM-41 had similiar structure to MCM-41 which may be seen from the fact that diffrraction peaks appeared at 28 = 2,42-2,56°; 4,06-4,25° and 4,75-4,78. Pyridine-FTIR analysis results showed that AJMCM- 4 I had Lewis acid site and combined of acid sites Lewis and Brensted, Zr-Al-MCM-41 had Bmnsted acid site beside the two acid sites. Zr-AI-MCM-41 with Si/(Zr+AI) = 25 showed highest acidity. Therefore, it may be concluded that the acidity of the resulting solids increased with increasing zirkonium ion content.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 546.24 Les s 2010 |
| Uncontrolled Keywords: | MCM-41, Hidrotennal, Keasaman |
| Subjects: | Q Science > QD Chemistry Q Science > QD Chemistry > QD501 Catalysis. Catalysts. |
| Divisions: | Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Totok Setiawan |
| Date Deposited: | 15 Jan 2024 01:10 |
| Last Modified: | 15 Jan 2024 01:10 |
| URI: | http://repository.its.ac.id/id/eprint/105464 |
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