Daratika, Dyah Ayu (2016) Sintesis Nanopartikel Zn1-xCuxO Dengan Metode Kopresipitasi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Dalam penelitian ini, sintesis nanopartikel Zn1-xCuxO
telah dilakukan dengan menggunakan metode kopresipitasi.
Bahan dasar yang digunakan antara lain zinc acetat dihydrate,
serbuk tembaga, larutan HCl, dan NH4OH. Variasi konsentrasi
doping serbuk tembaga yang digunakan yaitu 0, 1, 2, 3, 4, 5, dan
6% wt Cu. Karakterisasi dilakukan dengan menggunakan
pengujian X-Ray Diffractometer (XRD), Scanning Electron
Microscopy (SEM), spektrofotometer UV-vis, dan LCR meter.
Analisis hasil pengujian XRD dilakukan menggunakan software
Rietica, dan MAUD. Hasil penelitian menunjukkan bahwa
kalsinasi pada temperatur 4000C telah terbentuk fasa Zn1-xCuxO.
Pola difraksi menunjukkan bahwa nanopartikel Zn1-xCuxO
mengkristal dalam struktur wurtzite. Ukuran kristal diperoleh
melalui analisa menggunakan software MAUD diketahui dalam
rentang 28 nm - 79 nm. Dan hasil analisis dari pengujian UV-vis
menggunakan metode Tauc-Plot menunjukkan bahwa terjadi
penurunan energi gap dari 3,10 eV hingga 2,80 eV, dan
mengalami kenaikan untuk pendopingan > 4% wt Cu. Hasil ini
selaras dengan nilai konduktivitas listrik yang meningkat seiring
bertambahnya konsentrasi dopan tembaga (Cu) dari 1,18 x 10-8
S/cm hingga 24,25 x 10-8 S/cm, namun mengalami penurunan
untuk pendopingan > 4%
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In this research, Zn1-xCuxO nanoparticles were
synthesized by using coprecipitation method. The raw material
used in this experiments were the powders of zinc acetat dihydrate,
copper, HCl solution, and NH4OH solution. The doping of copper
were used in concentrations 0, 1, 2, 3, 4, 5, and 6% wt Cu. The
sample characterized by using X-ray diffractometer (XRD),
Scanning Electron Microscopy (SEM), UV-vis spectrophotometer,
and LCR meter. The analysis of diffraction data was carried out
using Rietica, and MAUD software. From the analysis thermal
showed that after calcination at 4000C, Zn1-xCuxO phase were
formed. The diffraction patterns indicated that Zn1-xCuxO
nanoparticles crystallizes in the wurtzite structure. The crystal size
was known by using MAUD software, and found in range 28 nm -
79 nm. And the analysis result of measurement UV-vis
spectrophotometer by using Tauc-Plot methods showed that the
value of energy gap decrease from 3,10 eV to 2,80 eV, and then
increase after doping more than 4% wt Cu. This result giving a
reason why the value of the electrical conductivity increases by
adding copper as a dopant from 1,18 x 10-8 S/cm to 24,25 x 10-8
S/cm, but decrease after doping more than 4% wt Cu.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 620.5 Dar s |
| Uncontrolled Keywords: | Doping, Konduktivitas, Kopresipitasi, Tembaga, Zn1-xCuxO |
| Subjects: | T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles. |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | ansi aflacha |
| Date Deposited: | 15 Apr 2020 08:15 |
| Last Modified: | 15 Apr 2020 08:15 |
| URI: | http://repository.its.ac.id/id/eprint/75796 |
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