Abstract
A simple method to deposit spherical gold nanoparticles on the surface of MgTiO 3 ceramic nanofibers is presented. Electrospun MgTiO 3/poly(vinyl acetate) (PVAc) hybrid nanofibers were calcined at 650 °C to obtain phase pure ceramic MgTiO 3 nanofibers with 100-150 nm diameters. These ceramic nanofibers were immersed in an aqueous solution of HAuCl 4 containing poly(vinyl alcohol) (PVA) as capping agent followed by photoreduction at 365 nm to get a novel Au-MgTiO 3 nanocomposite. The formation of gold nanoparticles upon irradiation was confirmed by the appearance of a surface plasmon band (SPB) at 590 nm in the UV-visible absorption spectra. The surface morphology and elemental compositions were analyzed by the scanning electron microscope (SEM) equipped with energy dispersive X-ray (EDX), and transmission electron microscope (TEM). X-ray diffraction (XRD) and selected area diffraction (SAED) pattern in TEM revealed the crystallization of gold by exhibiting strong diffractions correspond to Au(111) and Au(200) crystalline planes in addition to the MgTiO 3 diffraction.
| Original language | English |
|---|---|
| Pages (from-to) | 510-513 |
| Number of pages | 4 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 6 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 1 2006 |
| Externally published | Yes |
Keywords
- Electrospinning
- Gold Nanoparticles
- MgTiO Ceramic Nanofibers
- Photoreduction
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Materials Science (miscellaneous)
- Engineering (miscellaneous)