Raharjo, Slamet (2018) Analisa Pengaruh Temperatur Perlakuan Hidrotermal Terhadap Pembentukan Silika Mesopori MCM-41 dari Sekam Padi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Padi merupakan produk utama pertanian di negara-negara agraris termasuk Indonesia. Sekam padi merupakan limbah dari padi yang dapat dijadikan sumber penghasil silika terbesar dalam pembuatan natrium silikat sebagai bahan alternatif pembentukan mesopori silika dengan harga yang murah. Penelitian ini bertujuan untuk mensintesa silika mesopori MCM-41 dari sekam padi (rice husk) dan menganalisa pengaruh temperatur perlakuan hidrotermal terhadap pembentukan mesopori silika tipe MCM-41 yang dihasilkan dengan penambahan surfaktan templating CTAB. Hasil penelitian menunjukkan material memiliki struktur kristal amorfus. Silika mesopori terdiri dari silika yang ditunjukkan adanya gugus siloksan (Si-O-Si). Ukuran partikel yang dihasilkan antara 423,022 nm hingga 655,476 nm dengan bentuk seperti terumbu karang. Material memiliki struktur pori heksagonal seperti sarang lebah sebagai ciri khas dari MCM-41 dengan ukuran pori 2,535 nm, ukuran pori menunjukkan sintesa menghasilkan material silica mesopori. Hasil nitrogen adsorption desorption isotherms menunjukkan bahwa semakin rendah temperatur hidrotermal maka terjadi peningkatan luas permukaan spesifik dan menurunnya ukuran pori rata-rata, dimana nilai luas permukaan adalah 825,365 m2/gr dan ukuran pori rata-rata adalah 6,10426 nm yang diperoleh dari proses hidrotermal pada 85°C.
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Rice became the main product of agriculture in agrarian countries including Indonesia. Rice husk is a natural waste of rice that can be used as the silica precursor for sodium silicate production. As well as an alternative precursor material of mesoporous silica synthesized with cheap and low cost production. The objectives of this study were to synthesize MCM-41 mesoporous silica from rice husk and analyze the effect of hydrothermal treatment temperature on mesopore formation of an MCM-41 type produced by addition of surfactant templating. The results showed that the material had an amorphous crystal-liked structure. The mesoporous silica is composed of silica shown by the siloxane (Si-O-Si) group. The particle size generated between 423,022 nm to 655,476 nm with a coral-like structure. The material has a hexagonal pore structure such as a honeycomb as characteristic of MCM-41 with a pore size of 2,535 nm which includes mesoporous material. The result of nitrogen adsorption-desorption isotherms shows lower hydrothermal temperature will increase the specific surface area and decrease the average pore size, where the surface value is 825,365 m2/gr and the average pore size is 6,10426 nm obtained from the hydrothermal process at 85°C.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 620.112 15 Rah a-1 3100018075529 |
| Uncontrolled Keywords: | Sekam Padi, Silika Mesopori MCM-41, Sol-Gel, Hidrotermal, rice husk, mesoporous silica MCM-41, sol-gel, hidrotermal |
| Subjects: | Q Science > QC Physics > QC585.75.S55 Silica Q Science > QC Physics > QC 611.97.T46 Temperature effects. Including transition temperature T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles. |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Slamet Raharjo |
| Date Deposited: | 13 Aug 2018 04:51 |
| Last Modified: | 09 Oct 2020 03:00 |
| URI: | http://repository.its.ac.id/id/eprint/52309 |
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