Large-scale fabrication of upconversion nanoparticles (UCNPs)/TiO2 nanofiber mats is achieved via electrospinning, followed by calcination. The as-prepared UCNPs/TiO2 nanofiber mats consist of nanofibers of TiO2 embedded with UCNPs of NaYF4:Yb/Tm@NaYF4, confering strong upconversion fluorescence under near-infrared excitation (980 nm) and enabling efficient degradation of organic dyes via fluorescence resonance energy transfer between UCNPs and TiO2.
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Zhang et al. (2016) studied this question.
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