Photocatalytic hydrogen production by photo-reforming of methanol with one-pot synthesized Pt-containing TiO2 photocatalysts

Yi Hsuan Chung, Kai Han, Chih Yu Lin, D. O'Neill, G. Mul, Bastian Mei*, Chia Min Yang*

*Corresponding author for this work

Research output: Contribution to journalReview articleAcademicpeer-review

1 Citation (Scopus)
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Abstract

Functionalization of semiconductors by metallic nanoparticle is considered to be one of the most effective procedure to improve photocatalytic hydrogen production. Photodeposition is frequently used for functionalization but particle sizes and dispersions are still difficult to control. Here, Pt functionalization is achieved in a one-pot synthesis. The as-prepared samples are compared to reference materials prepared by conventional photodeposition and our results confirm that small and well-dispersed nanoparticles with superior stability are obtained by one-pot synthesis. The enhanced stability is attributed to a limited leaching of Pt nanoparticles during illumination likely caused by the preferable interaction of small, well dispersed Pt nanoparticles with the TiO2 support material. In addition, our results demonstrate that Na-residues are detrimental for the photocatalytic performance and washing in acidic solution is mandatory to effectively reduce the sodium contamination.

Original languageEnglish
JournalCatalysis today
Early online date24 Jul 2019
DOIs
Publication statusE-pub ahead of print/First online - 24 Jul 2019

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Keywords

  • UT-Hybrid-D
  • Hydrogen evolution from methanol reforming
  • One-pot synthesis
  • Photocatalysis
  • Stability
  • Co-catalyst

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