Browsing by Author "Taer, E"

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    ANALISIS SURFAKTAN BINER (CTAB DAN PVP) UNTUK PENUMBUH PALLADIUM DENGAN METODE SEED- MEDIATED GROWTH
    (2014-05-22) Iwantono; Umar, A. A; Taer, E; Nursoimah
    Palladium nanoparticles have been grown on solid substrates (glass slide and ITO) using seed mediated growth method with a various ratios of CTAB and PVP, and a various duration times of growth. The particles were grown at 28-30’C. Characterizations of the samples were carried out by using UV-Vis spectroscopy, XRD and FESEM. The results of UV-VIS spectroscopy indicate that palladium nanoparticles prepared with the ratio of CTAB : PVP = 17 ml : 3 ml, and with a duration time of 4 hours + 4 hours have the highest absorption intensity. XRD results confirmed the present of palladium nanoparticles by two peaks at 2θ = 40.122° and 46.664° with orientation of (111) and (200). Whereas, FESEM images showed that palladium nanoparticles prepared with the ratio of CTAB:PVP = 17 ml : 3 ml, and with a duration time of 2 hours + 2 hours have uniform sizes of about 13.4- 17.9 nm and have high density of about 0.2325%.
  • No Thumbnail Available
    Item
    KAJIAN EFEK KONSENTRASI SURFAKTAN BINER TERHADAP PENUMBUHAN NANO KRISTAL EMAS DI ATAS PERMUKAAN SUBSTRAT PADAT
    (2014-05-22) Asyana, V; Taer, E; Iwantono
    Gold nanoplates have been grown onto solid substrates by using seed-mediated growth method. The gold nanoplates have been grown at temperature of 28-30oC with a variety of concentration of surfactants (CTAB and PVP). Characterizations of the samples have been carried out by using UV-Vis spectroscopy, XRD and FESEM. UV-Vis spectra showed that the gold particles have grown with a various geometrical forms, such as spherical and others. XRD results informed that the present of two peaks at 2θ: 38.195o and 44.393o indicated the gold-nanoplates, with their crystal orientation of (111) and (200). FESEM images showed the size of the particles ranged from 31 nm to 50 nm, with a various of the geometrical forms, such as hexagonal faces, truncated hexagonal face, triangle face, cubic face