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hosseini--madaah
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Synthesis of SiO2/Gd(OH)CO3/TiO2 Core/Shell Nanocomposite for Biological Applications
, M.Sc. Thesis Sharif University of Technology ; Hosseini, Madaah (Supervisor)
Abstract
Inthisresearch,silicananoparticleswere synthesized ymicroemulsionmethod. Thengadoliniumcarbonatewascoated onsilicananoparticles by depositiontechnique.After thatTiO2wascoatedbydeposition techniqueonsilica/gadolinium carbonatenanoparticles.The results of infrared spectroscopy (FT-IR) on silica/gadolinium carbonatesamples showed carbonate bonds. The results of X-ray diffraction (XRD) test on samples of silica/gadolinium carbonatethat had been calcined at 600 0C for 2 h, showed that silica and gadolinium carbonate phases are amorphous and with increasing calcination temperature, gadolinium oxide crystalline phase is formed. For TiO2 coatings process, the effect of TBOT concentration, the...