Abstract
In2YbSbO7 and Gd2YbSbO7 were prepared first, while the structural and photocatalytic properties of them were investigated. In2YbSbO7 and Gd2YbSbO7 were crystallized with pyrochlore-type structure, cubic crystal system by space group Fd3m. The lattice parameters a for In2YbSbO7 and Gd2YbSbO7 were 10.340277 and 10.639527 Å. The band gap energies of In2YbSbO7 and Gd2YbSbO7 were 2.361 and 2.469 eV. In2YbSbO7 and Gd2YbSbO7 could photodegrade rhodamine B under visible light irradiation and they owned higher catalytic activity compared with Bi2InTaO7. Furthermore, In2YbSbO7 showed higher catalytic activity compared with Gd2YbSbO7. The photocatalytic degradation of rhodamine B with In2YbSbO7, Gd2YbSbO7 and Bi2InTaO7 followed the first-order reaction kinetics, and the first-order rate constant was 0.02466, 0.01430, and 0.00329 min−1. After visible light irradiation for 235 and 255 min with In2YbSbO7 and Gd2YbSbO7 as catalysts, complete removal and mineralization of rhodamine B was observed. The photocatalytic degradation pathway of rhodamine B was obtained in this experiment.
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.
