Synthesis and characterisation of titanium dioxide nanoparticles prepared within hyperbranched polyethylenimine polymer template using a modified sol–gel method

Penny Mathumba, Alex T. Kuvarega, Langelihle N. Dlamini, Soraya P. Malinga

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Templated synthesis of nanoparticles has been shown to result in uniform sized and well dispersed particles. Titanium dioxide (TiO2) nanoparticles were prepared through a modified sol–gel method using hyperbranched polyethyleneimine (HPEI) as a template to reduce their agglomeration. The synthesised HPEI/TiO2 nanocomposites were characterised by techniques such as Transmission Electron microscopy (TEM), Fourier Transform Infrared spectroscopy (FTIR), Powder-X-ray Diffraction spectroscopy (XRD) and Thermo-gravimetric analysis (TGA). TEM micrographs illustrated formation of small and well dispersed TiO2nanoparticles. The use of HPEI therefore had a huge impact on the size, shape and dispersion of theTiO2 nanoparticles.

Original languageEnglish
Pages (from-to)172-177
Number of pages6
JournalMaterials Letters
Volume195
DOIs
Publication statusPublished - 15 May 2017

Keywords

  • Agglomeration
  • Hyperbranched polyethyleneimine
  • Sol–gel method
  • Titanium dioxide

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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