Budiarti, Herny Ariesta (2014) Pengaruh penambahan garam [NaCl] pada pertumbuhan nanopartikel TiO2 rutile dari prekurson TiCl3. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Telah dilakukan sintesis nanopartikel TiO2 rutile dari prekursor
TiCl3 menggunakan metode co-precipitation dengan variasi fraksi
penambahan NaCl sebesar 0,83, 0,91, dan 0,94. Kemudian endapan
dikalsinasi pada temperatur 600°C, 800°C, dan 1000°C selama 5 jam.
Setelah diperoleh serbuk TiO2 kemudian sampel dikarakterisasi
menggunakan, XRD, SEM, DSC/TGA, dan BET. Hasil karakterisasi
XRD menunjukkan bahwa penambahan NaCl menghasilkan perpaduan
fase rutile, anatase, brookite, dan Ti3O5. Ukuran partikel dan fraksi
rutile paling besar diperoleh pada fraksi NaCl 0,83 dengan temperatur
kalsinasi 1000°C yaitu sebesar 96,72 nm dengan fraksi rutile sebesar
0,87. Berdasarkan hasil karakterisasi DSC/TGA transformasi menjadi
fase rutile terjadi pada temperatur ~800°C. Sedangkan hasil
karakterisasi SEM menunjukkan bahwa, pengaruh penambahan NaCl
pada suasana basa terhadap morfologi TiO2 tidak terlalu signifikan.
Akan tetapi, semakin tinggi temperatur kalsinasi aglomerasi yang
terjadi semakin besar. Dari hasil karakterisasi BET menunjukkan
bahwa, penambahan NaCl menyebabkan luas permukaan partikel lebih
kecil, akan tetapi diameter pori yang dihasilkan lebih besar.
Penambahan NaCl paling optimal diperoleh pada fraksi NaCl 0,91
dengan energi aktivasi sebesar 9,20 kJ/mol. ========== Nanoparticle rutile TiO2 has been synthesized by co-precipitation
method with salt addition. The NaCl fraction studied ware 0.83, 0.91,
and 0.94. The solution was calcined at 600°C, 800°C, and 1000°C for
5 hours. The obtained TiO2 powder was characterized by XRD, SEM,
DSC/TGA, and BET. The XRD result shows that salt addition produces
the mixtures of rutile, anatase, brookite, and Ti3O5. The maximum
particle size and fraction of rutile obtained were 96.720 nm and 0.87,
respectively, for fraction of NaCl of 0.83 at 1000°C. Based on the
DCS/TGA characterization, the anatase-to-rutile transformation was
occured at ~800°C. In general, the morphology of TiO2 as observed
through SEM does not change considerably by addition of NaCl.
However, for higher calcination temperatures the particle
agglomeration became bigger. The significant effect of NaCl addition is
the reduction of surface area and the increase in pore diameter. From
these result it was found that the maximum allowable of NaCl addition
is 0.91 fraction whose energy activation being the lowest among other
studied fractions, i.e. 9.20 kJ/mol.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSF 620.5 Bud p |
| Uncontrolled Keywords: | TiO2 rutile, TiCl3, NaCl, transformasi fase, coprecipitation, rutile TiO2, TiCl3, NaCl, phase transformation, copecipitation |
| Subjects: | Q Science > QD Chemistry > QD553 Electrochemistry. Electrolysis |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | - Davi Wah |
| Date Deposited: | 15 May 2019 04:19 |
| Last Modified: | 15 May 2019 04:19 |
| URI: | http://repository.its.ac.id/id/eprint/63031 |
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