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All Journal Jurnal Ilmu Fisika Pillar of Physics: Jurnal Berkala Ilmiah Fisika
Abdil Bajili
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Astronomy Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Sintesis Nanopartikel Titanium Dioksida Didoping Rhutenium Abdil Bajili; Dahyunir Dahlan; Akrajas Ali Umar
Jurnal Ilmu Fisika (JIF) Vol 8 No 2 (2016): September 2016
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.8.2.54-59.2016

Abstract

Nanopartikel titanium dioksoda (TiO2) yang didoping ruthenium (Ru/TiO2) ditumbuhi dengan menggunakan metode penumbuhan Liquid Phase Deposition (LPD) telah berhasil dilakukan. Konsentrasi doping ruthenium yang digunakan adalah 2,5 mM. Variasi lama waktu penumbuhan dilakukan selama 3 jam, 5 jam, 7 jam dan 10 jam. Kemudian dilakukan karakterisasi Ultraviolet-visible, fotoelektron sinar-x dan teknik difraksi sinar-x. Energi gap yang didapatkan dengan waktu penumbuhan 3 jam dan 5 jam adalah 3,22 eV dan 3,28 eV. Sedangkan waktu penumbuhan 7 jam dan 10 jam adalah 3,16 eV dan 3,29 eV. Morfologi dari Ru/TiO2 bersifat nanopori dengan fasa adalah anatase. Kata kunci: Liquid Phase Deposition (LPD), nanopartikel Ru/TiO2, doping ruthenium, fase anatase. 
KARAKTERISASI MINERAL PADA BATU GRANIT DI SEKITAR GUNUNG MARAPI DAERAH SUMATERA BARAT MENGGUNAKAN X-RAY DIFFRACTION (XRD) Abdil Bajili
PILLAR OF PHYSICS Vol 3 (2014)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (695.345 KB) | DOI: 10.24036/1117171074

Abstract

Rock is a collection of one or more minerals which also becomes the main ingredient in the formation of the earth’s crust. The rock contains of important mineral which are widely utilized by humans in daily life and also it can be the basic ingredients for sector industry. West Sumatra is also rich of the natural sources inside the rocks in mineral form. Which is used by Seismic Method, concluded that one of the compiler layers of rock that dominated the earth’s crust in West Sumatra is granite rock. Granite is included in the type of intrusive igneous rock that process of coagulating take place under the surface of the earth and it comes out because the eruption of  volcano and the pressure in the earth.  West Sumatra is the province which has many active volcanoes, one of them is Marapi Mountain. Around the Marapi Mountain much by passed by the Fault Sumatran. So that the research purpose to determine the characterization of minerals in the granite rock surrounding Marapi Mountain using X-Ray Diffraction (XRD) and explore in West Sumatra have. X-Ray Diffraction (XRD) is the method needed to analyze mineralogy of a rock sample. The result found in the measurement is that there are Orthoclase, Quartz, Albite, Magnetite, Thorite, Ilmenite, Hornblende, Kaolinite, Muscovite, and Sodalite. With the value of susceptibility is 4,1 x 10-5 m3/kg, the value of density is 2,54 gr/cm3 and compress straight granite is 12,56 MPa. Keywords: Rock, mineral, West Sumatra, Marapi Mountain, Granite rock, X-Ray Diffraction (XRD).
Co-Authors Akrajas Ali Umar Dahyunir Dahlan