Deposition of gold nanoparticles on electrospun MgTiO 3 ceramic nanofibers

Santosh Aryal, N. Dharmaraj, Shanta Raj Bhattarai, Myung Seob Khil, Hak Yong Kim

Research output: Contribution to journalArticle

13 Scopus citations

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 languageEnglish
Pages (from-to)510-513
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume6
Issue number2
DOIs
StatePublished - Feb 1 2006
Externally publishedYes

Keywords

  • Electrospinning
  • Gold Nanoparticles
  • MgTiO Ceramic Nanofibers
  • Photoreduction

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Materials Science (miscellaneous)
  • Engineering (miscellaneous)

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