0387023 - FZÚ 2013 RIV NL eng J - Článek v odborném periodiku
Mahmed, N. - Jiang, H. - Heczko, Oleg - Söderberg, O. - Hannula, S.-P.
Influence of different synthesis approach on doping behavior of silver nanoparticles onto the iron oxide-silica coreshell surfaces.
Journal of Nanoparticle Research. Roč. 14, č. 8 (2012), s. 1-15. ISSN 1388-0764. E-ISSN 1572-896X
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: stroble method * silver nanoparticles * iron oxide * amourphous silica
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 2.175, rok: 2012

Silver (Ag) nanoparticles with the crystallite size ranging from 13–24 nm were successfully doped onto the surface of iron oxide–silica coreshell particles. In the process, iron oxide particles having a size distribution within 8–19 nm were prepared by using a reverse co-precipitation method followed by the formation of iron oxide-core with silica shell (with 50–150 nm diameter of silica spheres) by using a modified Stöber method. The phase, morphology, optical and magnetic properties of the synthesized powders were characterized by using X-ray diffraction, scanning electron microscope (SEM), transmission electron microscope, UV–visible spectrometer (UV–Vis) and vibrating sample magnetometer. Spherical morphology of the Ag nanoparticles was found to deposit on the iron oxide-silica surfaces. The particle size distribution is depending on the synthesis approach used. The UV–Vis absorption peak at 404–410 nm of wavelength confirmed the existence of the Ag nanoparticles.
Trvalý link: http://hdl.handle.net/11104/0216225