Abstract
Among different TiO2 polymorphs, anatase has been way more studied than rutile in photocatalytic CO2 reduction. In the present work, the catalytic activity of anatase and P25-TiO2 (mixture between anatase and rutile phases) has been evaluated in gas-phase CO2 photoreduction. The interfacial heterojunction between anatase and rutile in P25 leads to a superior photocatalytic activity. Differences in the catalytic performance of sole TiO2 anatase and P25 are investigated by a set of optoelectronic and electrochemical characterization techniques. Our results show that the higher CO2 reduction activity of P25 is due to an enhanced charge separation at the anatase/rutile interface, and thermodynamically more favorable band energy positions towards CO2 reaction products.
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.
