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The Er3+:Y3Al5O12, which is able to transform the visible light from solar light into ultraviolet light as an upconversion luminescence agent, was prepared by nitrate‐citrate acid and heat‐treated method. And then, a novel photocatalyst, Er3+:Y3Al5O12/TiO2‐ZnO composite, which could effectively utilize the solar energy, was synthesized by ultrasonic dispersion and liquids boil method. In succession,...
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