Abstract
Visible-light-driven photocatalyst Ag/Bi2MoO6 was successfully synthesized via a facile hydrothermal route. Ag was uniformly dispersed on the surface of Bi2MoO6 nanosheets. The photocatalytic performance of Ag/Bi2MoO6 composites was evaluated by the degradation of Rhodamine B (RhB). The Ag/Bi2MoO6 nanocomposite exhibited a higher photocatalytic activity as compared to pure Bi2MoO6. Moreover, the 7wt% Ag-loaded Bi2MoO6 showed the optimal photocatalytic performance in the degradation of RhB. The photogenerated holes (h+ ) and superoxide radical anions (•O 2- ) were found to be the primary reactive species in the degradation of RhB dye in aqueous solution.
Highlights
Bismuth-containing semiconductors, such as Bi2MoO6,[1] Bi2O3,[2] and BiOX[3] have been extensively investigated as efficient photocatalysts due to their good chemical stability and large response toward visible light.[4,5] In this regard, the two dimensional (2D) nanosheet array has attracted much attention because of two reasons
No Ag peaks were observed in the X-ray diffraction (XRD) pattern of Ag/Bi2MoO6 nanoparticles, which may be due to a very low amount of the Ag metal dispersed in the material
Ag/Bi2MoO6 composites photocatalyst was successfully synthesized via hydrothermal process and further used in the phorodegradation study of Rhodamine B (RhB)
Summary
Bismuth-containing semiconductors, such as Bi2MoO6,[1] Bi2O3,[2] and BiOX[3] have been extensively investigated as efficient photocatalysts due to their good chemical stability and large response toward visible light.[4,5] In this regard, the two dimensional (2D) nanosheet array has attracted much attention because of two reasons. Bismuth-containing semiconductors, such as Bi2MoO6,[1] Bi2O3,[2] and BiOX[3] have been extensively investigated as efficient photocatalysts due to their good chemical stability and large response toward visible light.[4,5]. In this regard, the two dimensional (2D) nanosheet array has attracted much attention because of two reasons. When Ag nanoparticles contact with a charged semiconductor, it can harvest visible light more effectively through SPR effect to produce electrons on their surfaces, and these electrons transfer to the adjacent semiconductor through interface.[18] Such electron transfer greatly increases the separation rate of photogenerated electrons and holes and improves the photocatalytic efficiency for Ag-loading compounds. The mechanism for the photocatalytic degradation of RhB over the Ag/Bi2MoO6 nanostructures has been discussed
Sign-in/Register to view highlights & summary 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.
