Application of TiO2/Er3+:Y3Al5O12 composite to photo-degrade acid red B dye under sun light irradiation |
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| Authors: | J. Wang Y. Xie Z. Zhang J. Li Z. Jiang Z. Xing R. Xu X. Zhang |
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| Affiliation: | (1) Department of Chemistry, Liaoning University, 110036 Shenyang, People’s Republic of China;(2) Department of Pharmacy, Liaoning University, 110036 Shenyang, People’s Republic of China |
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| Abstract: | In this work, an upconversion luminescence agent, Er3+:Y3Al5O12, was synthesized and its absorption and fluorescent spectra was determined. By calculation, the upconversion efficiency of the emission peak at 320 nm was estimated to be about 3.4%. And then, TiO2/Er3+:Y3Al5O12 composite was prepared by simple ultrasonic dispersion and liquids boil methods. The obtained composite was characterized by X-ray diffrac-tion. The effect of TiO2/Er3+:Y3Al5O12 composite with different Er3+:Y3Al5O12 doping amount, heat-treated temperature and heat-treated time on photodegradation of acid red B under sun light was investigated in detail. It was found that the photocatalytic activity of TiO2/Er3+:Y3Al5O12 composite was much higher than that for the similar system with only TiO2 powder. These results support the usefulness of TiO2/Er3+:Y3Al5O12 composite in the process of photodegrading dye wastewater and using the sun light. |
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