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Sacrificial Hydrogen Generation from Formaldehyde with Pt/TiO2 Photocatalyst in Solar Radiation
Industrial & Engineering Chemistry Research (2013)
  • Pankaj Chowdhury, Western University
  • Ghodsieh Malekshoar, Western University
  • Madhumita B. Ray, Western University
  • Jesse Zhu, Western University
  • Ajay K. Ray, Western University

In this work, solar TiO2 photocatalysis was used for sacrificial hydrogen generation from formaldehyde. Platinum was loaded onto a TiO2 photocatalyst by a solar photodeposition method to suppress the electron/hole recombination process. The photocatalyst inside the reactor was irradiated from the top with a solar simulator. Photocatalytic hydrogen generation from formaldehyde was influenced by the solution pH, platinum loading (wt %) on TiO2, catalyst concentration, light intensity, and initial formaldehyde concentration. A Langmuir-type model fitted well with the experimental data, and the values of surface reaction rate constant, k, and the adsorption equilibrium constant, K, are 2.3598 × 10–6 mol min–1 and 17.73 M–1, respectively. Apparent quantum yield (QY) was higher for the UV light-driven hydrogen generation (10.91%) compared to the solar light-driven hydrogen generation (1.24%).

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Pankaj Chowdhury, Ghodsieh Malekshoar, Madhumita B. Ray, Jesse Zhu, et al.. "Sacrificial Hydrogen Generation from Formaldehyde with Pt/TiO2 Photocatalyst in Solar Radiation" Industrial & Engineering Chemistry Research Vol. 52 Iss. 14 (2013)
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