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Visible-to-UVC driven upconversion photocatalyst sterilization efficiency and mechanisms of β-NaYF4: Pr3+, Li+@BiOCl with a core-shell structure

UVC (wavelength < 280 nm) has a wide range of applications in the field of water disinfection due to its excellent bactericidal performance. In this work, we synthesized an upconversion luminescent material, β-NaYF4: Pr3+, Li+ (NYF), which can generate UVC, and compounded it with a BiOCl photocatalyst to synthesize β-NaYF4: Pr3+, Li+@BiOCl (NYF-Bi) with a core-shell structure. The NYF-Bi composite material…

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