A study of morphology and Optical properties of nano engineered (Au/Cu/ TiO2) composites

M. A. Gondal*, S. G. Rashid, M. A. Dastageer, A. Khalil, S. M. Zubair, M. A. Ali, J. H. Lienhard, G. H. McKinley, K. K. Varanasi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Gold and Copper tailored titania (Au/Cu/ TiO2) nanocomposites were synthesized by a modified sol gel method and their morphology and optical properties were studied using various techniques. XRD patterns confirmed the presence of pure anatase phase of TiO2, and an enhanced visible response was found in the absorption spectrum of gold modified Cu/TiO 2 and Au/Cu/ TiO2 nanocomposites. These doped nanoparticles exhibited low photoluminescence emission intensity which is better for enhancement of photocatalytic activity as discussed. In addition, qausi-spherical morphology of nanoparticles was observed in Field Emission Scanning Electron Microscopy (FE-SEM) images. These nano-engineered materials could be applied in various applications such as energy harvesting surfaces like solar cells, hydrogen production using water splitting, CO2 conversion into value added products like methanol for fuel cells, waste water treatment by degradation of organic and inorganic pollutants and disinfection of water, and last not least as optical sensors.

Original languageEnglish
Title of host publication2012 9th International Conference on High Capacity Optical Networks and Enabling Technologies, HONET 2012
Pages157-161
Number of pages5
DOIs
StatePublished - 2012

Publication series

Name2012 9th International Conference on High Capacity Optical Networks and Enabling Technologies, HONET 2012

Keywords

  • Sol-gel technique
  • Titania based nanocomposites
  • gold modification
  • photoluminescence

ASJC Scopus subject areas

  • Information Systems
  • Signal Processing
  • Electrical and Electronic Engineering
  • Communication

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