Abstract
The band structure near the surface of the Pt‐loaded photocatalyst has been discussed. The height of the energy barrier existing at the interface was experimentally derived by analyzing the temperature dependence of the cathodic current flowing in the Pt‐loaded sinter electrode. The barrier at the interface was obtained from the measurement of the flatband potential of electrodes. It turned out that these two barriers have unequal heights, which are advantageous for the photocatalytic reactions. The pH and the temperature effects on the photocatalytic hydrogen evolution from aqueous solutions of sodium sulfite are discussed using this band model. Marked enhancement of the reaction rate by addition of a small amount of EDTA to the solution has been reported. This is concluded to be due to the shift of the flatband potential of toward the negative potential.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
