Impact of Cu oxidation state on photocatalytic H2 production by Cu/TiO2

Minsu Jung, Jason Scott, Yun Hau Ng, Yijiao Jiang, Rose Amal

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

3 Scopus citations

Abstract

This work focuses on the influence of Cu oxidation state on photocatalytic hydrogen generation by Cu/TiO2•Hydrogen reduction was used to tailor the Cu oxidation state on the TiO2•Cu+ and/or Cu0 appeared to be the more favourable oxidation state for generating H2•Cu2+ initially present on the TiO2 was reduced to Cu+ and/or Cu0 during the photocatalytic process. Cu deposits on reduced Cu/TiO2 catalysts were observed to be metallic Cu with a thin shell of CuO and its activity was greater than both bare TiO2 and air-calcined Cu/TiO2•This enhancement could be attributed to metallic copper and improved Cu crystallinity.

Original languageEnglish (US)
Title of host publicationProceedings of the 2014 International Conference on Nanoscience and Nanotechnology, ICONN 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4-6
Number of pages3
ISBN (Electronic)9781479935215
DOIs
StatePublished - Nov 21 2014
Event2014 International Conference on Nanoscience and Nanotechnology, ICONN 2014 - Adelaide, Australia
Duration: Feb 2 2014Feb 6 2014

Publication series

NameProceedings of the 2014 International Conference on Nanoscience and Nanotechnology, ICONN 2014

Conference

Conference2014 International Conference on Nanoscience and Nanotechnology, ICONN 2014
Country/TerritoryAustralia
CityAdelaide
Period02/2/1402/6/14

Keywords

  • Copper
  • oxidation state
  • photocatalytic hydrogen production
  • TiO2

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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