Pengaruh Dopan Fe Pada Sifat Kemagnetan Nanopartikel ZnO Hasil Kopresipitasi

Seta, Putra Dewangga Candra (2017) Pengaruh Dopan Fe Pada Sifat Kemagnetan Nanopartikel ZnO Hasil Kopresipitasi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dalam penelitian ini, sintesis nanopartikel ZnO dengan dopan Fe telah dilakukan dengan menggunakan metode kopresipitasi. Bahan-bahan yang digunakan antara lain Zinc Acetate Dihydrate, serbuk FeCl3, larutan HCl, dan NH4OH. Variasi konsentrasi dopan FeCl3 yang digunakan yaitu 0, 0,5, 1, 2, dan 3%. Karakterisasi dilakukan dengan menggunakan pengujian X-Ray Diffractometer (XRD), Scanning Electron Microscopy (SEM), dan Vibrating Sample Magnetometer (VSM). Analisis hasil pengujian XRD dilakukan menggunakan software Rietica, dan MAUD. Hasil penelitian menunjukkan bahwa kalsinasi pada temperatur 400oC telah tersubtitusi dopan Fe ke dalam Kristal ZnO. Pola difraksi menunjukkan bahwa nanopartikel Zn1-xFexO mengkristal dalam struktur wurtzite. Ukuran kristal diperoleh melalui analisa menggunakan software MAUD diketahui dalam rentang 38 nm - 45 nm. Dan hasil analisis dari pengujian VSM menunjukkan bahwa pada dopan x=0,005 grafik menunjukkan nilai magnetisasi negatif, dopan x=0,01-0,03 grafik menunjukkan nilai magnetisasi positif. Hasil magnetisasi tidak hanya dipengaruhi oleh penambahan dopan, tetapi juga dipengaruhi faktor lain seperti ambiguitas ion Fe (Fe2+, Fe3+), cacat kekosongan oksigen, BMP (Bond Magnetic Polaron) dan Impuritas Fase lain. ================================================================================================================== In this research, ZnO nanoparticles doped Fe were synthesized by using coprecipitation method. The raw material used in this experiments were the powders of Zinc acetate dihydrate, FeCl3, HCl solution, and NH4OH solution. The doping of Iron were used in concentrations 0, 0,05, 1, 2, and 3%. The sample characterized by using X-ray diffractometer (XRD), Scanning Electron Microscopy (SEM), and Vibrating Sample Magnetometer (VSM). The analysis of diffraction data was carried out using Rietica, and MAUD software. From the analysis thermal showed that after calcination at 400o C, Fe substituted into ZnO crystal structure. The diffraction patterns indicated that Zn1-xFexO nanoparticles crystallizes in the wurtzite structure. The crystal size was known by using MAUD software, and found in range 38 nm - 45 nm. And the analysis result of measurement VSM showed that in x=0,005 showed negative magnetization and x=0,01 – 0,03 showed positive magnetization. The magnetization is not only influenced by the addition of dopants, but also by other factors such as the ambiguity Fe ion(Fe2+, Fe3+), oxygen vacancy, BMP (Bond Magnetic Polaron) and impurities.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: besi, coprecipitation, dopan, dopant, iron, kemagnetan, kopresipitasi, magnetic, ZnO.
Subjects: Q Science > QC Physics
T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles.
Divisions: Faculty of Mathematics and Science > Physics > (S1) Undergraduate Theses
Depositing User: PUTRA DEWANGGA CANDRA SETA
Date Deposited: 04 Jul 2017 05:36
Last Modified: 04 Jul 2017 05:36
URI: http://repository.its.ac.id/id/eprint/41575

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