Meilanda, Nadia Heca (2026) Pengaruh Variasi Asam Halida Terhadap Sintesis Aluminosilikat Mesopori Bertemplat Sapindus Rarak Untuk Produksi Biofuel Dari Minyak Kelapa Bekas. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Material aluminosilikat mesopori berhasil disintesis melalui metode sol gel dan hidrotermal menggunakan kaolin Bangka sebagai sumber silika dan alumina, ekstrak buah Sapindus rarak sebagai template alami pembentuk pori , serta Ludox sebagai sumber silika Si/Al. Pada penelitian ini bertujuan untuk mengetahui pengaruh asam Halida terhadap karakteristik aluminosilikat mesopori yang dihasilkan serta aktivitas katalitiknya pada reaksi deoksigenasi minyak kelapa bekas. Seluruh material aluminosilikat hasil sintesis telah dikarakterisasi melalui XRD, FTIR, FE-SEM-EDX dan adsorpsi-desorpsi N2 . Kinerja dari hasil material diuji melalui reaksi deoksigenasi pada waste coconut oil. Hasil karakterisasi XRD menunjukkan seluruh material memiliki struktur amorf, hasil dari adsorpsi – desorpsi N2 masuk pada tipe IV dan golongan H3, morfologi pada FE-SEM berbentuk agregat dengan ukuran pori meso. Pengujian aktivitas katalitik menunjukkan bahwa katalis MA-HI memberikan kinerja terbaik pada reaksi deoksigenasi minyak kelapa bekas dengan konversi sebesar 99%, liquid yield sebesar 44%, serta menghasilkan fraksi hidrokarbon tertinggi sebesar 48%. Hasil penelitian ini menunjukkan bahwa variasi asam halida berpengaruh terhadap karakteristik material aluminosilikat mesopori dan aktivitas katalitiknya, penggunaan HI menghasilkan katalis dengan performa terbaik untuk produksi biofuel melalui reaksi deoksigenasi minyak kelapa bekas.
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Mesoporous aluminosilicate materials were successfully synthesized using a combination of sol-gel and hydrothermal methods, employing Bangka kaolin as the silica and alumina source, Sapindus rarak fruit extract as a natural pore-directing template, and Ludox as an additional silica source to achieve the desired Si/Al ratio. This study aimed to investigate the effect of hydrohalic acids on the characteristics of the synthesized mesoporous aluminosilicates and their catalytic activity in the deoxygenation of waste coconut oil. The synthesized materials were characterized using X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (FE-SEM-EDX), and N₂ adsorption-desorption analysis. The catalytic performance of the materials was evaluated through the deoxygenation reaction of waste coconut oil. The XRD results indicated that all synthesized materials possessed an amorphous structure, while the N₂ adsorption-desorption isotherms exhibited Type IV isotherms with H3 hysteresis loops, confirming the mesoporous nature of the materials. FE-SEM analysis revealed aggregated particle morphologies with mesoporous structures. Among the synthesized catalysts, MA-HI exhibited the best catalytic performance, achieving a conversion of 99%, a liquid yield of 44%, and the highest hydrocarbon fraction of 48%. These results demonstrate that the variation of hydrohalic acids significantly influences the characteristics and catalytic performance of mesoporous aluminosilicate materials, with HI producing the most effective catalyst for biofuel production through the deoxygenation of waste coconut oil.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Aluminosilikat mesopori, Biofuel, Sapindus rarak, Pengaruh Asam. Mesoporous aluminosilicate, Biofuel, Sapindus rarak, Hydrohalic acid effect. |
| Subjects: | Q Science > QD Chemistry > QD501 Catalysis. Catalysts. |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Nadia Heca Meilanda |
| Date Deposited: | 10 Aug 2026 01:55 |
| Last Modified: | 10 Aug 2026 01:55 |
| URI: | http://repository.its.ac.id/id/eprint/143432 |
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