Refine the crystallinity of upconversion nanoparticles for NIR-enhanced photocatalysis

A new photocatalyst was synthesized by a combination of the upconversion nanoparticle NaYF 4 :Yb, Tm, Gd (NYTG) and NH 2 -MIL-101(Cr) (NMC) to form NYTG/NMC.