Sintesis Sebuk Al2O2 Menggunakan Metode Logam-Terlarut Asam

Wardani, Dianita (2014) Sintesis Sebuk Al2O2 Menggunakan Metode Logam-Terlarut Asam. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

[img]
Preview
Text
1110100008-paper.pdf - Published Version

Download (491kB) | Preview
[img]
Preview
Text
1110100008-Undergraduate_Theses.pdf - Published Version

Download (3MB) | Preview
[img]
Preview
Text
1110100008-presentation.pdf - Presentation

Download (2MB) | Preview

Abstract

Dalam Tugas Akhir ini telah dilakukan sintesis serbuk Al2O3 dengan variasi temperatur dan penambahan polietilen glikol (PEG). Bahan dasar yang digunakan dalam penelitian ini adalah serbuk aluminium (Al Merck), larutan HCl (Merck 37%) dan sebagai templat (gugus 400 dan 1000, disingkat PEG400 dan PEG1000). Sintesis Al2O3 ini dilakukan dengan menggunakan metode logam-terlarut asam dengan waktu kalsinasi 1 jam pada variasi temperatur 100 ̊C, 300 ̊C, 900 ̊C, 1000,1050 dan 1100 setelah mempertimbangkan data DTA-TG serbuk hasil pengeringan. Karakterisasi dilakukan dengan instrumen X-Ray Diffractometer (XRD). Analisis data XRD meliputi identifikasi fasa, perhitungan komposisi fasa dan estimasi ukuran kristal. Hasil analisis menunjukkan bahwa setiap kenaikan temperatur menyebabkan perubahan fasa, yang awalnya terbentuk kloraluminit (AlCl3.H2O) kemudian terdekomposisi sehingga membentuk fasa amorf, lalu fasa-fasa intermediat alumina, sampai pada temperatur 1100 C terbentuk ̊ fasa α-Al2O3 (korundum). Penambahan PEG berpengaruh terhadap ukuran kristal yang terbentuk, yakni semakin besar gugus PEG yang digunakan semakin kecil ukuran kristal yang didapatkan. Pada temperatur 1100 ̊C didapatkan ukuran kristal tanpa penambahan PEG sebesar 235 nm, penambahan PEG 400 berukuran 217 nm dan PEG 1000 berukuran 139 nm. ========== The metal-dissolved method has been implemented on the synthesis of Al2O3 with temperature variations and the addition of polyethylene glycol (PEG).The basic materials used in this study were aluminum powder (Al Merck), HCl (Merck 37%) and PEG as a template (PEG 400 and 1000). Al2O3 synthesis was performed using metal-dissolved acid methods for about one-hour calcinations on temperature variation of 100 ̊C, 300 ̊C, 900 ̊C, 1000 ̊C, 1050 ̊C and 1100 ̊C. The phase characterization was performed using X-ray diffractometer (XRD), where the data were then analysed phase identification, composition calculation and crystallites size estimation. The analyses showed that there were phase changes with calcination temperature, which was originally formed chloraluminite (AlCl3.H2O) after drying then into amorphous phase and Al2O3 intermediate phases below 1100°C and then stable corundum (α-Al2O3) at 1100°C. The addition of PEG affected the crystal size, eg. after 1100°C calcination, the crystallite size of corundum was 235 nm for sample without PEG, but then decreases to 217 nm for the PEG400 added sample and then to 139 nm for the PEG1000 added sample.

Item Type: Thesis (Undergraduate)
Additional Information: RSFi 620.112 2 War s
Uncontrolled Keywords: Metode logam-terlarut, fasa-fasa intermediat, α-Al2O3, PEG, XRD, PEG, ukuran kristal, Choraluminite, amorphous Al2O3, internediate Al2O3 phases, α-Al2O3, XRD, PEG, Metal dissolved acid method
Subjects: H Social Sciences > HD Industries. Land use. Labor > HD9999.N36+ Nanostructured materials
Divisions: Faculty of Mathematics and Science > Physics > (S1) Undergraduate Theses
Depositing User: - Davi Wah
Date Deposited: 03 Jul 2019 14:08
Last Modified: 03 Jul 2019 14:08
URI: http://repository.its.ac.id/id/eprint/63333

Actions (login required)

View Item View Item