Environmental Science and Pollution Research

, Volume 26, Issue 1, pp 215–226 | Cite as

Facile hydrothermal synthesis of magnetic adsorbent CoFe2O4/MMT to eliminate antibiotics in aqueous phase: tetracycline and ciprofloxacin

  • Juan Zhang
  • Muhammad Asim Khan
  • Mingzhu XiaEmail author
  • Abdelnasir Mahmoud Abdo
  • Wu Lei
  • Chuan Liao
  • Fengyun WangEmail author
Research Article


A highly resourceful, eco-friendly, and recyclable magnetic adsorbent based on montmorillonite (CoFe2O4/MMT) was fabricated via a facile hydrothermal method to harvest tetracycline (TC) and ciprofloxacin (CIP) from pollutant water. The prepared adsorbent was characterized by XRD, FT-IR, SEM, and VSM methods to comprehend its structure, morphology, and magnetism. Effects of experimental parameters including solution pH, adsorption time, initial concentration, and ion strength were studied in details. The experimental adsorption data of TC and CIP fitted into pseudo-second-order kinetic model and Langmuir isotherm, respectively. The maximum adsorptions of TC and CIP could reach up to 240.91 and 224.00 mg/g. The thermodynamic study indicates that the adsorption process is spontaneous. In addition, the antibiotics can be further degraded under visible light environment and the magnetic sorbent can also be thermally regenerated.

Graphical abstract


CoFe2O4 Montmorillonite Magnetic Adsorption Tetracycline Ciprofloxacin 



The National Natural Science Foundation of China (51472121, 51572127, 51572130, and 51672134) financially supports all the research work in this group.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Juan Zhang
    • 1
  • Muhammad Asim Khan
    • 1
  • Mingzhu Xia
    • 1
    Email author
  • Abdelnasir Mahmoud Abdo
    • 1
  • Wu Lei
    • 1
  • Chuan Liao
    • 1
  • Fengyun Wang
    • 1
    Email author
  1. 1.School of Chemical EngineeringNanjing University of Science and TechnologyNanjingPeople’s Republic of China

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