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Citation: YE Linjing, GUAN Weisheng, SONG Younan, YANG Li. Synthesis of Magnetic Fe₃O₄/ZnO Core-shell Materials and Its Degradability on Tetracycline Antibiotic[J]. Chinese Journal of Applied Chemistry, ;2013, 30(9): 1023-1029. doi: 10.3724/SP.J.1095.2013.20522 shu

Synthesis of Magnetic Fe₃O₄/ZnO Core-shell Materials and Its Degradability on Tetracycline Antibiotic

Environmental Science and Engineering College, Chang'an University, Xi'an 710064, China

Received Date: 14 November 2012
Revised Date: 24 December 2012

Magnetic Fe₃O₄/ZnO core-shell nano-materials were successfully prepared by using a two-step procedure with coprecipitation and annealing treatment. The material composition,morphology and magnetic properties were examined and verified by means of X-ray diffraction(XRD),infrared spectroscopy(IR),transmission electron microscopy(TEM) and vibrating sample magnetometer(VSM). The photocatalytic degradation activity of the compound in the sunlight was evaluated by xenon lamp irradiating on tetracycline(TC), doxycycline(DC) and oxytetracycline(OTC),three tetracycline antibiotics,and the best performance of photocatalytic degradation activity was tailored by the concentration of zinc precursor. The results show that ZnO coated on the surface of Fe₃O₄ gradually forms 100 nm conical structure with increasing Zn²⁺ concentration. When Zn²⁺ concentration is 0.5 mol/L,the max degradation rate of TC,DC and OTC antibiotics is 85%,78% and 64%,respectively. On the basis of the above points,the synthesized magnetic Fe₃O₄/ZnO coreshell materials can be used for water antibiotics removal,and it will be a new composite photocatalyst with high catalytic activity and recover ability.
- ferroferric oxide,
- zinc oxide,
- core-shell structures,
- photocatalytic degradation,
- tetracycline antibiotics
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Synthesis of Magnetic Fe₃O₄/ZnO Core-shell Materials and Its Degradability on Tetracycline Antibiotic