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One-step solvothermal synthesis of magnetic Fe
A novel Fe 3 O 4 -graphite composite was prepared, characterized, and investigated as a heterogeneous Fenton-like catalyst for the degradation of levofloxacin (LEV) in an aqueous solution. The results revealed that the Fe 3 O 4 -graphite composite exhibited excellent properties for the degradation and mineralization of LEV, achieving a nearly complete degradation of 50 mg L −1 LEV in 15 min and 48% of total organic carbon removal in 60 min under optimal conditions. A large electronic conjugation structure exists in graphite, which may lead to the fast production of *OH radical species because of the easy reduction of Fe(III) to Fe(II). In addition, we observed that the graphite can degrade LEV in the presence of H 2 O 2 . Therefore, the synergistic results of the graphite structure and Fe 3 O 4 magnetic nanoparticles (MNPs) may contribute to the high catalytic activity of the Fe 3 O 4 -graphite composite. Compared with pure Fe 3 O 4 MNPs, lesser iron leaching of the Fe 3 O 4 -graphite composite was observed during the degradation of LEV. The degradation efficiency of LEV remained approximately 80% at the fifth recycling run, which indicates that the Fe 3 O 4 -graphite composite has potential applications in water treatment for removing organic pollutants.
One-step solvothermal synthesis of magnetic Fe
A novel Fe 3 O 4 -graphite composite was prepared, characterized, and investigated as a heterogeneous Fenton-like catalyst for the degradation of levofloxacin (LEV) in an aqueous solution. The results revealed that the Fe 3 O 4 -graphite composite exhibited excellent properties for the degradation and mineralization of LEV, achieving a nearly complete degradation of 50 mg L −1 LEV in 15 min and 48% of total organic carbon removal in 60 min under optimal conditions. A large electronic conjugation structure exists in graphite, which may lead to the fast production of *OH radical species because of the easy reduction of Fe(III) to Fe(II). In addition, we observed that the graphite can degrade LEV in the presence of H 2 O 2 . Therefore, the synergistic results of the graphite structure and Fe 3 O 4 magnetic nanoparticles (MNPs) may contribute to the high catalytic activity of the Fe 3 O 4 -graphite composite. Compared with pure Fe 3 O 4 MNPs, lesser iron leaching of the Fe 3 O 4 -graphite composite was observed during the degradation of LEV. The degradation efficiency of LEV remained approximately 80% at the fifth recycling run, which indicates that the Fe 3 O 4 -graphite composite has potential applications in water treatment for removing organic pollutants.
One-step solvothermal synthesis of magnetic Fe
Zhao, Qi (author) / Zhang, Fengshuang / Li, Yi / Zhao, Jiahui / Yan, Jin / Ding, Lan / Hou, Juan / Ding, Hong / Wang, Long
2016
Article (Journal)
English
USA , Recht , Zeitschrift , Datenverarbeitung
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