Abstract
Achieving highly effective water splitting based on conventional TiO2 photoanode is challenging due to its poor visible light response and low electrical conductivity. Herein, a Bi2MoO6/TiO2 heterojunction with a suitable band structure is constructed to broaden light absorption and accelerate oxidation kinetics. In particular, the highest photocurrent density (0.35 mA cm−2 at 1.23 V vs. RHE) of Bi2MoO6/TiO2 is 2.1 times higher than that of pristine TiO2. The integrated Bi2MoO6 nanoflakes enrich more reactive sites and charge transfer tunnels. The surface hole injection efficiency and electron lifetime of Bi2MoO6/TiO2 are 1.4 and 5.5 times larger than those of bare TiO2, respectively. Additionally, the activation energy and charge transfer resistance of Bi2MoO6/TiO2 electrodes are decreased remarkably, dramatically promoting the separation of electron-hole pairs. This work offers a novel strategy for TiO2-based heterojunction with great potential for application in photoelectrochemical water splitting.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.