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Journal : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

PENUMBUHAN NANOPARTIKEL TITANIUM DIOKSIDA PADA SUBSTRAT FTO DENGAN METODE ELEKTRODEPOSISI Saidatun Khofifah; Iwantono '; Awitdrus '
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

TiO2 nanoparticles have been grown successfully by electrodeposition method on the surface of Fluorine Tin Oxide (FTO) substrate. The growth of TiO2 nanoparticles was done by using voltage of 2 Volt, 6 Volt, 10 Volt, 14 Volt and 18 Volt. This TiO2 was also demonstrated with two different temperature 37 oC and 50 oC. The samples were characterized by UV-Vis spectroscopy, X-ray Diffraction, Scanning Electron Microscope (SEM) and Energy Dispersion X-ray (EDX). The results of UV-Vis showed that TiO2 nanoparticles have the highest absorption at 18 Voltage. The result of XRD at 18 Volt showed that TiO2 has 5 peaks at 2θ: 25,497o, 38,176o, 38,176o, 51,887o, 54,911 o, and 62,093 o, with their crystal plane (1 1 1), (2 1 1 ), (2 2 2), (3 2 0), (4 0 0). The results of SEM showed that nanoparticles form is nearly spherical at a magnification of 35000 times. The results of EDX of the review indicate that Ti atoms have a percentage atomic of 17.66% and O of 70,39%.
PENUMBUHAN DAN KARAKTERISASI NANOPARTIKEL PERAK PADA SUBSTRAT PADAT Rizky Ardie Yani; Iwantono '; Akrajas Ali Umar
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Silver nanoparticles have been successfully grown on solid substrate. The growth of the particles used wet chemical  method which consisted of two steps, seeding and growing steps. The silver nanoparticle growth was carried out by two variations which were surfactant’s concentration and ascorbic acid’s volume.  The UV-Vis spectrum profile of the samples described that the  growth of silver nanoparticles of spherical shape was dominated on the ITO, represented as a sharp single peak of the absorption spectra. Its characterization measured by XRD showed that silver nanoparticles had grown on the substrate with crystal orientation (1 1 1) and (2 0 0). The FESEM images depicted that the shape of silver nanoparticles was a spherical shape with their uniform diameter size of 300-650 nm.