Nailazzulfa, Kunti (2015) Sintesis Nanopartikel Fe2O3 Dari Batu Besi Dengan Metode Kopresipitasi Dalam pH Bervariasi. Undergraduate thesis, Institut Technology Sepuluh Nopember.
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Abstract
Sintesis nanopartikel Fe2O3 dengan bahan dasar batu besi
lokal dari Tanah Laut, Kalimantan Selatan telah dilakukan dengan
metode kopresipitasi. Sintesis dimulai dengan melarutkan batu
besi ke HCl pada temperatur 70° C selama 1 jam, diikuti dengan
penyaringan. Larutan lolos saring selanjutnya diencerkan dengan
aquades untuk mendapatkan pH 1 dan diendapkan menggunakan
NH4OH untuk mendapatkan pH 3, 5 dan 7. Hasil dari proses
sintesis kemudian dikeringkan pada temperatur 100 °C. Serbuk
kering yang dikalsinasi pada temperatur 500 °C, 800 °C dan 1100
°C. Serbuk hasil kalsinasi dikarakterisasi menggunakan XRD
dimana data dianalisis menggunakan metode Rietveld melalui
perangkat lunak Rietica. Selanjutnya, analisis ukuran kristal
dilakukan dengan pengujian TEM. Hasil penelitian menunjukkan
hematit murni (Fe2O3) dicapai setelah semua proses kalsinasi.
Ukuran kristal hematit adalah sekitar 30 nm untuk sampel pH 3
dan sekitar 10 nm untuk sampel pH 7.
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Synthesis of Fe2O3 nanoparticles based on local iron stone
from Tanah Laut, South Kalimantan has been performed with a
coprecipitation method. The synthesis started by dissolving the
bulk iron stone into HCl at a temperature of 70 °C for 1 hour,
followed by filtering. The solution was further diluted with
distilled water to obtain a pH of 1 and precipitated using NH4OH
to obtain a pH of 3, 5 and 7. The results of the process ware then
dried at 100 °C. The dried powders were calcined at 500 °C, 800
° C and 1100 °C. The calcined powders were characterized using
XRD where the data were analyzed using the Rietveld method
through Rietica software. Furthermore, the crystal size analysis
was performed by TEM examination. Results showed pure
hematite (Fe2O3) was achieved after the all calcination processes.
The crystallite size of hematite was about 30 nm for pH 3 sample
and about 10 nm for pH 7 sample.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 541.394 Nai s |
| Uncontrolled Keywords: | batu besi, hematit, metode kopresipitasi, variasi pH, nanokristal. |
| Subjects: | T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles. |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 12 Dec 2019 01:51 |
| Last Modified: | 12 Dec 2019 01:51 |
| URI: | http://repository.its.ac.id/id/eprint/72338 |
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