Abstract
Abstract Ho 3+ single-doped YF 3 nanoparticles were successfully synthesized by a hydrothermal method. Ultraviolet upconversion luminescence around 288 nm was observed clearly in YF 3 :Ho 3+ nanoparticles under excitation at 450 nm. The structure, composition and upconversion emission properties of the as-prepared products were characterized by X-ray crystallography, scanning electron spectrophotometry, energy-dispersive X-ray analysis, and fluorescence spectrophotometry. Hydrothermal temperature had a significant influence on the size and morphology of YF 3 :Ho 3+ nanoparticles, but the molar ratio of Y 3+ /Ho 3+ had little effect on these characteristics. Upconversion emission spectra demonstrated that the upconversion luminescence properties of the synthesized products were closely related to hydrothermal temperature and the molar ratio of Y 3+ /Ho 3+ . The YF 3 :Ho 3+ @TiO 2 photocatalyst was prepared via a sol-gel process and gave higher photocatalytic activity in degraded Rhodamine B (RhB) than did P25 under Xe lamp irradiation.
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 call
