Cationic (V, Y)-codoped TiO2 with enhanced visible light induced photocatalytic activity for photoelectrochemical applications

Matiullah Khan, Wenbin Cao, Bilal Mansoor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To utilize the wide spectrum of solar irradiations, an effective co-doping approach is applied to modify the photoelectrochemical properties of TiO2 by doping vanadium (transition metal) and yttrium (rare earth element). V and/or Y codoped TiO2 was prepared using hydrothermal method without any post calcination for crystallization. V, Y codoped TiO2 exhibited high absorption coefficient with enhanced visible light absorption compared to monodoped samples. All the prepared samples showed pure anatase phase and spherical morphology with uniform particle distribution. It is found that both the doped V and Y exist in the form of substitutional point defects replacing Ti atom in the lattice. The photocatalytic activity, evaluated by the degradation of methyl orange, displays that the codoped TiO2 sample exhibits enhanced visible light photocatalytic activity. The synergistic effects of V and Y drastically improved the visible light absorption and electron-hole pair's separation leading to the enhanced visible light catalytic activity.

Original languageEnglish
Title of host publicationProceedings of the TMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems, MEMA 2015
PublisherJohn Wiley and Sons Inc.
Pages325-333
Number of pages9
ISBN (Electronic)9781119065272
Publication statusPublished - 2015
EventTMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems, MEMA 2015 - Doha, Qatar
Duration: 11 Jan 201514 Jan 2015

Other

OtherTMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems, MEMA 2015
CountryQatar
CityDoha
Period11/1/1514/1/15

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Keywords

  • Photoactivity
  • Transition metals
  • V
  • Y codoped TiO<inf>2</inf>

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Mechanics of Materials
  • Building and Construction

Cite this

Khan, M., Cao, W., & Mansoor, B. (2015). Cationic (V, Y)-codoped TiO2 with enhanced visible light induced photocatalytic activity for photoelectrochemical applications. In Proceedings of the TMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems, MEMA 2015 (pp. 325-333). John Wiley and Sons Inc..