ANALISIS KRISTAL SERBUK MgTiO3 HASIL PENCAMPURAN LOGAM TERLARUT AKIBAT PERLAKUAN PANAS DAN PENAMBAHAN PEG 400, 1000 HASIL PENCAMPURAN LUAR

SARI, LISMA DIAN K. (2014) ANALISIS KRISTAL SERBUK MgTiO3 HASIL PENCAMPURAN LOGAM TERLARUT AKIBAT PERLAKUAN PANAS DAN PENAMBAHAN PEG 400, 1000 HASIL PENCAMPURAN LUAR. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Telah dilakukan studi analisis kristal serbuk MgTiO3 (MT) hasil
pencampuran logam terlarut akibat perlakuan panas dan penambahan PEG400,
1000 hasil pencampuran luar. Pencampuran luar adalah penambahan PEG
sebelum pencampuran kedua prekursor yaitu Mg dan Ti dilakukan, untuk
membedakan dengan metode pencampuran dalam (penambahan PEG setelah
pencampuran kedua prekursor dilakukan). Serbuk logam murni Mg dan Ti
digunakan sebagai bahan dasar. Masing-masing logam dilarutkan ke dalam HCl
37%, selanjutnya ditambahkan templat PEG dengan variasi massa 0,5; 1,0; 1,5;
2,0 dan 2,5 gram dalam kondisi cair. Kedua larutan prekursor tersebut dicampur
dan diaduk selama 5 jam lalu dikeringkan pada temperatur 105-110 ºC. Sampel
serbuk MT tanpa dan dengan PEG1000 sebanyak 1,5 gram dipanaskan pada
temperatur 100; 200; 300; 400; 500 dan 600ºC selama 1 jam. Serbuk dengan
variasi massa PEG400 dan 1000 dikalsinasi pada temperatur 600°C selama 1 jam.
Serbuk hasil kalsinasi, dikarakterisasi menggunakan DSC-TGA dan XRD,
selanjutnya dianalisis kristalinitas menggunakan HSP (High Score Plus),
komposisi fasa dengan Rietica, dan ukuran kristal dianalisis dengan MAUD. Hasil
yang diperoleh akibat perlakuan panas menghasilkan dekomposisi kristal serbuk
MT yang berbeda antara sampel MT tanpa dan dengan PEG1000. Penambahan
variasi massa PEG400 dan 1000 menggunakan metode pencampuran luar
menghasilkan fasa utama MT, serta fasa residu periklas dan rutil. Fasa sekunder
MgTi2O5 (MTO) hanya muncul pada sampel MT dengan penambahan PEG400
sebanyak 1,5 gram dan PEG1000 sebanyak 1 gram. Ukuran kristal terkecil 23 nm
pada sampel dengan PEG400 sebanyak 2,5 gram. Hasil-hasil penelitian yang
didapatkan meyakinkan bahwa PEG400 dan 1000 dapat berperan signifikan
sebagai templat dan surfaktan dalam proses pembentukan nanokristal MT hasil
metode pencampuran luar PEG.

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The crystal analysis of MgTiO3 powders has been studied using metal
dissolved method with heat treatment process and addition PEG400, 1000 from
external mixing result. External mixing is the treatment by adding PEG before
mixing both of Mg and Ti precursors for to compare with internal mixing
(adding PEG after mixing both of Mg and Ti precursors). The pure metal
powders of Mg and Ti are used as raw material. Both of metal powder
dissolved in 37% HCl and added PEG with variation of mass such as 0,5; 1,0;
1,5; 2,0 dan 2,5 grams. Both of precursor solution are mixed for 5 hour and
then dried on temperature 105-110°C. The samples with and without PEG1000
(1,5 gr) are heated on temperature 100; 200; 300; 400; 500; and 600°C for 1
hour. The samples using variation of mass PEG400 and 1000 are calcinated on
the temperature 600°C for 1 hour. The samples which have been calcinated are
characterized using DSC-TGA and XRD. Crystallinity were analyzed using
HSP (high score plus), composition of phase were analyzed using Rietica, and
crystal size were analyzed using MAUD. The synthesis result from sample
with heat treatment process obtained the crystal decomposition of MT powder
is different between sample MT with PEG and without PEG1000. The
variation of mass PEG400 and 1000 using external mixing method produced
MT as the main phase, as well as periclase and rutil as residue phase. The
secondary phase MTO appeared on MT sample with PEG400 (1,5 gr) and
PEG1000 (1 gr).The result ensure that PEG400 and 1000 act as template and
surfactant on the process of nanocrystal MT formation using external mixing
method of PEG.

Item Type:	Thesis (Masters)
Additional Information:	RTFi 620.5 Sar a
Uncontrolled Keywords:	metode pencampuran luar, MgTiO3, PEG, DSC-TGA, XRD
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Mathematics and Science > Physics > 45101-(S2) Master Thesis
Depositing User:	Anis Wulandari
Date Deposited:	04 Jan 2017 07:59
Last Modified:	04 Jan 2017 07:59
URI:	http://repository.its.ac.id/id/eprint/1304

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