Abstract
It is an effective method to explore full spectrum responsive photocatalyst for improving their photocatalytic activity. Herein, Ti3C2−OH/Bi2WO6:Yb3+, Tm3+ composites were successfully synthesized via a facile hydrothermal method. The resultant Ti3C2−OH/Bi2WO6:Yb3+, Tm3+ composites accompanied 2D/2D heterojunction with grid-like porous structure present a significant enhancement of photoactivity towards degradation of RhB under visible and NIR light irradiation. Specifically, the 0.2-Y/T-TB2.8 composite exhibits the best photocatalytic activity for RhB removal, in which the RhB degradation efficiency was 99.8% (Vis-NIR, 30 min), 91% (Vis, 30 min), and 48% (NIR, 160 min). The excellent photocatalytic activity of the composite is attributed to the grid-like porous structure endowing it with an enhanced RhB adsorption, favorable charge separation resulting from the outstanding conductivity of the Ti3C2−OH, and up-conversion mechanism via energy level transition of Yb3+/Tm3+. In addition, the radical capture experiments verified that the hole (h+) plays the important role for degradation of RhB.
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.