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Photocatalytic Degradation of Oxytetracycline Using Co-precipitation Method Prepared Fe₂O₃/TiO₂Nanocomposite

Journal of Magnetics, Volume 21, Number 1, 31 Mar 2016, Pages 46-50

Yuefa Jia (Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies), Chunli Liu *

(Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies), Rong Li *

(Research Center of Nano Science and Technology, Shanghai University)

Abstract

Fe₂O₃/TiO₂nanocomposite were successfully synthesized by co-precipitation method using Fe (NO₃)₃·9H₂O and Ti (SO₄)₂ as raw materials. Structural and textural features of the mixed oxide samples were characterized by X-ray diffractometer, field emission scanning electron microscopy and energy-dispersive X-ray. The effects of initial concentration of oxytetracycline (OTC), different competitive ions and organics on the photocatalytic degradation rate of OTC by the Fe₂O₃/TiO₂nanocomposite were analyzed under UV and visible light irradiation. The results indicate that the optimized initial concentration of OTC was 50 mg/L to achieve the best photocatalytic efficiency. Cu²⁺, NH₄⁺, C₃H₈O and EDTA in the aqueous suspension were found to suppress the degradation rate of OTC, whereas the effect of NO₃− and H₂C₂O₄ can be ignored.

Keywords: Fe2O3/TiO2; photocatalyst; competitive ions and organics; OTC

DOI: http://dx.doi.org/10.4283/JMAG.2016.21.1.046

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