Activation effect of silver nanoparticles on the photoelectrochemical performance of mesoporous TiO2 nanospheres photoanodes for water oxidation reaction

Prabhakarn Arunachalam, Mabrook S. Amer, Mohammed A. Ghanem, Abdullah M. Al-Mayouf, Dongyuan Zhao

Research output: Contribution to journalArticleResearchpeer-review

16 Citations (Scopus)

Abstract

This work reports the photodeposition of Ag nanoparticles onto mesoporous TiO2 (m-TiO2) pre-formed by the evaporation-induced self-assembly method. Photoanodes of Ag/m-TiO2 assembled by electrophoretic disclose a superior photoelectrochemical (PEC) performance for water oxidation reaction related to m-TiO2. The photoanodes physicochemical investigations witness the even arrangement of m-TiO2 nanospheres particles over the substrates. The PEC study displays a steady photocurrent density of 1 mAcm-2 at -1.0 V vs SCE was attained for Ag/m-TiO2 photoanodes in visible light illumination and it is nearly twofold enhancements in comparison with m-TiO2 photoanodes. The observed superior PEC nature was attributed to the reduced band-gap energy and charge recombination that caused from the incorporation of plasmonic photodeposited Ag nanoparticles on m-TiO2 nanospheres photoanodes.

Original languageEnglish
Pages (from-to)11346-11355
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number16
DOIs
Publication statusPublished - 20 Apr 2017
Externally publishedYes

Keywords

  • Electrophoretic deposition
  • Mesoporous TiO nanospheres
  • Photoelectrochemistry
  • Water oxidation reaction

Cite this

Arunachalam, Prabhakarn ; Amer, Mabrook S. ; Ghanem, Mohammed A. ; Al-Mayouf, Abdullah M. ; Zhao, Dongyuan. / Activation effect of silver nanoparticles on the photoelectrochemical performance of mesoporous TiO2 nanospheres photoanodes for water oxidation reaction. In: International Journal of Hydrogen Energy. 2017 ; Vol. 42, No. 16. pp. 11346-11355.
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Activation effect of silver nanoparticles on the photoelectrochemical performance of mesoporous TiO2 nanospheres photoanodes for water oxidation reaction. / Arunachalam, Prabhakarn; Amer, Mabrook S.; Ghanem, Mohammed A.; Al-Mayouf, Abdullah M.; Zhao, Dongyuan.

In: International Journal of Hydrogen Energy, Vol. 42, No. 16, 20.04.2017, p. 11346-11355.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Arunachalam, Prabhakarn

AU - Amer, Mabrook S.

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AU - Al-Mayouf, Abdullah M.

AU - Zhao, Dongyuan

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AB - This work reports the photodeposition of Ag nanoparticles onto mesoporous TiO2 (m-TiO2) pre-formed by the evaporation-induced self-assembly method. Photoanodes of Ag/m-TiO2 assembled by electrophoretic disclose a superior photoelectrochemical (PEC) performance for water oxidation reaction related to m-TiO2. The photoanodes physicochemical investigations witness the even arrangement of m-TiO2 nanospheres particles over the substrates. The PEC study displays a steady photocurrent density of 1 mAcm-2 at -1.0 V vs SCE was attained for Ag/m-TiO2 photoanodes in visible light illumination and it is nearly twofold enhancements in comparison with m-TiO2 photoanodes. The observed superior PEC nature was attributed to the reduced band-gap energy and charge recombination that caused from the incorporation of plasmonic photodeposited Ag nanoparticles on m-TiO2 nanospheres photoanodes.

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