Enhanced carbon dioxide photoconversion efficiency by 1D structured platinized TiO2 films

W. N. Wang, W. J. An, B. Ramalingam, S. Mukherjee, D. M. Niedzwiedzki, S. Gangopadhyay, P. Biswas

Research output: Contribution to journalArticlepeer-review


A facile development of highly efficient platinized titanium dioxide (Pt-TiO2) thin films with unique one dimensional (1D) structure by using versatile gas phase deposition methods was established. The Pt-TiO 2 thin films demonstrated excellent carbon dioxide (CO2) photoreduction efficiency with a maximum quantum efficiency of about 2.41%. Carbon dioxide was selectively converted into methane (CH4), with an optimal CH4 yield of over 1300 μmol/g-cat/hr, that is due to the synergistic effects of high surface area and minimized charge barriers by highly oriented single phase crystallinity of the TiO2 thin films, and efficient electron-hole separation by the ultra-small Pt NPs.

Original languageEnglish (US)
Pages (from-to)305-309
Number of pages5
JournalECS Transactions
Issue number2
StatePublished - 2013
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)


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