Abstract

A novel efficient near-infrared photocatalyst of oxyfluoride glass-ceramic (Er3+/Yb3+-CaO-Al2O3-SiO2-CaF2)/TiO2 was synthesized by a simple solid-state reaction method, with optically active center (Er3+/Yb3+) doped CaF2 nanocrystals in glass-ceramic micro powders and nanosized anatase TiO2 as the superficial coating. This near-infrared photocatalyst preparation method has a high production efficiency with no wastewater generated.

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