The shape-specific photocatalytic efficiency of quantum size TiO 2 nanoparticles

Zheng Chen, Jinghai Liu, Song Qiu, Graham Dawson, Wei Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

The hypothesis of increasing electron/hole separation and photocatalytic activity by elongating one dimension size of extremely small nanoparticles was verified. Comparable TiO 2 nanorods and nanodots were prepared using very similar hydrolysis processes in oleic acid. The oleic acid coating on the TiO 2 surface was removed using UV irradiation. The structure, surface and absorption properties of samples were characterized. Photoluminescence and photocatalytic activity of samples were evaluated semi-quantitatively. The experimental results proved that the nanorods did have more efficient electron/hole separation and higher photocatalytic activity than spherical nanodots.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalCatalysis Communications
Volume21
DOIs
Publication statusPublished - 5 May 2012

Keywords

  • 1D
  • One dimension
  • PL
  • Shape

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Process Chemistry and Technology

Cite this