SINTESIS DAN KARAKTERISASI SERBUK Fe2(1-x)AlxTiO5 (0≤x≤0,5)

Lusiana, Lusiana (2019) SINTESIS DAN KARAKTERISASI SERBUK Fe2(1-x)AlxTiO5 (0≤x≤0,5). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sintesis Fe2(1-x)AlxTiO5 dengan variasi doping ion Al (0≤x≤0,5) telah berhasil dilakukan menggunakan metode solid state reaction. Sumber Fe adalah serbuk Fe2O3 yang disintesis dari batu besi Tanah Laut menggunakan metode disolusi dan kopresipitasi, sementara sumber Ti dan Al berasal dari serbuk-serbuk TiO2 dan Al(NO3)3.9H2O komersial. Proses sintesis Fe2(1-x)AlxTiO5 dilakukan dengan cara mencampurkan serbuk-serbuk Fe2O3, TiO2 dan Al(NO3)3.9H2O dalam planetary ball-mill selama 5 jam. Campuran serbuk selanjutnya dikalsinasi pada temperatur 1100°C setelah terlebih dahulu menjalani uji DTA-TG. Serbuk hasil kalsinasi dikarakterisasi menggunakan XRD dan SEM-EDX. Hasil analisis data XRD menunjukkan bahwa terbentuk fasa tunggal Fe2TiO5 dengan struktur kristal ortorombik untuk semua sampel. Analisis secara kuantitatif menunjukkan nilai parameter kisi dan volume sel menurun seiring dengan bertambahnya Al. Hal ini mengindikasikan keberhasilan doping Al pada struktur Fe2TiO5. Morfologi Fe2(1-x)AlxTiO5 cenderung lonjong dan memanjang, sesuai dengan struktur kristalnya.
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Synthesis of pseudobrookite Fe2(1-x)AlxTiO5 (0≤x≤0.5 as Al3+ ion doping) was successfully carried out using a solid-state reaction method. The source of Fe was Fe2O3 powder synthesized from local ironstone (Tanah Laut, South Kalimantan) using combined dissolution and coprecipitation methods, while the sources of Ti and Al were commercial TiO2 and Al(NO3)3·9H2O powders. The synthesis of solid solution Fe2(1-x)AlxTiO5 was carried out by mixing Fe2O3, TiO2, and Al(NO3)3·9H2O powders according to the stoichiometric ratio in a planetary ball mill for 5 hours. The powder mixture was then calcined at 1100°C based on DTA-TG characterization. The calcined powder was characterized using XRD and SEM-EDX. XRD data analysis showed that a single phase of Fe2TiO5 was successfully obtained, accompanied by a shift in the diffraction peaks indicating successful Al doping. Furthermore, quantitative analysis using the Rietveld method showed that the lattice parameters and cell volume of Fe2TiO5 decreased with increasing Al content, confirming the success of the doping process. Meanwhile, SEM images showed that the morphology of the Al-doped Fe2TiO5 grains was oval and elongated, consistent with the crystal structure of Fe2TiO5.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Fe2TiO5, Batu Besi, Doping Al, Solid State Reaction.
Subjects:	Q Science > QC Physics > QC765 Magnetic materials
Divisions:	Faculty of Natural Science > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	LUSIANA LUSIANA
Date Deposited:	20 Jul 2026 03:45
Last Modified:	20 Jul 2026 03:45
URI:	http://repository.its.ac.id/id/eprint/66167

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