Highly crystalline TiO2 whisker modified with pt and its photocatalytic performance

Yulan Ding, Yang Bai, Wei Li, Shanshan Chen, Yudan Zhu, Yinhua Zhu, Zhuhong Yang, Xiaohua Lu

Research output: Contribution to journalArticlepeer-review

Abstract

Highly thermally stable anatase TiO2 whisker has been synthesized by ion-exchange and calcination at high temperature (800°C) using K2Ti2O5 as the precursor. Pt nanoparticles (1%) were loaded on this TiO2 to prepare a Pt/TiO2 catalyst by the glycol-colloidal method. The catalyst samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray fluorescence, and N2 adsorption-desorption measurements. Photocatalytic performance of the Pt/TiO2 catalyst was measured by phenol degradation. The catalytic activity of Pt/TiO2 was 2.3 times that of TiO2 whisker, and the activity on per unit surface area was high. The Pt/TiO2 catalyst was stable after reuse 10 times, and it maintained 91% of its initial activity because the loss of Pt was only 6%.
Original languageEnglish
Pages (from-to)1271-1276
Number of pages6
JournalCuihua Xuebao/Chinese Journal of Catalysis
Volume31
Issue number10
DOIs
Publication statusPublished - 1 Oct 2010

Keywords

  • Degradation
  • Phenol
  • Photocatalysis
  • Platinum
  • Titanium dioxide
  • Whisker

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