Abstract
CaFe 2 O 4 nanorods (CFO NRs) and aggregated particles (CFO APs) were fabricated with and without the help of molten salt-assisted shape modification, respectively. CFO APs present inferior photocatalytic performance due to the plenty of grain boundaries which hinder photogenerated charges transfer and act as charge recombination sites. Molten salt-assisted modification can easily changes the shape of CFO NRs and significantly suppresses the formation of grain boundaries, facilitating photogenerated charges separation and transfer for highly efficient photocatalytic degradation of methylene blue (MB). Surface state investigation indicates a decreased amount of unsuitable oxygen vacancies and defects in CFO NRs, which is beneficial in alleviating the recombination of photogenerated charges in CFO NRs. The CFO NRs show a ten-time increased kinetic constant of MB degradation from 0.0013 to 0.013 min −1 by virtue of the alleviative charge recombination. • Successful fabrication of single crystalline CaFe 2 O 4 nanorods without grain boundary. • The CaFe 2 O 4 nanorods show enhanced photocatalytic activity for methylene blue degradation. • The enhancement of photocatalytic performance was attributed to the reduced grain boundary and surface oxygen defects.
Sign-in/Register to access full text options 
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.
