Facile Low Temperature Hydrothermal Synthesis of Magnetic Mesoporous Carbon Nanocomposite for Adsorption Removal of Ciprofloxacin Antibiotics
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- 作者：Si Shi ; Yingwei Fan ; Yuming Huang
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2013
- 出版时间：February 20, 2013
- 年：2013
- 卷：52
- 期：7
- 页码：2604-2612
- 全文大小：421K
- 年卷期：v.52,no.7(February 20, 2013)
- ISSN：1520-5045
文摘
A new magnetic mesoporous carbon composite (Fe3O4/C) was synthesized and characterized by XRD, nitrogen adsorption鈥揹esorption isotherms, FT-IR, TG, 味 potential, SEM, and TEM. The performance of using Fe3O4/C composite as an adsorbent for removal of antibiotics using ciprofloxacin (CIP) as a model was investigated. The Langmuir adsorption isotherm was applicable to fit the removal process. Kinetics of the CIP removal was found to follow a pseudo-second-order rate equation. The solution pH is critical for the adsorption of CIP on Fe3O4/C, and the maximum adsorption of CIP could be reached under neutral conditions. In addition, the Fe3O4/C adsorbent showed high magnetization and operational stability, and it could be readily separated from solution by applying an external magnetic field. After 10 recycle runs, over 85% of the adsorption capacity was retained. The high performance, low cost, and easily recyclable Fe3O4/C composite may become a promising adsorbent for water treatment.