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Magnetic Multi-walled Carbon Nanotube as Effective Adsorbent for Ciprofloxacin (CIP) Removal from Aqueous Solutions: Isotherm and Kinetics Studies

  • Reza Shokoohi , Abdollah Dargahi , Roya Azami Gilan , Hasan Zolghadr Nasab , Dariush Zeynalzadeh and Mohammad Molla Mahmoudi EMAIL logo
Published/Copyright: December 21, 2019
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 18 Issue 2

Abstract

Nowadays, the presence of antibiotics in the environment has been identified as an important concern for the various life cycle. Thus, this study was conducted to evaluate ciprofloxacin (CIP) adsorption efficiency onto the multi-walled carbon nanotube (MWCNTs) and magnetic multi-walled carbon nanotube (MMWCNTs). In this experimental study, the characteristics of the studied adsorbents were determined using SEM, FTIR and XRD methods. The effects of operational parameters including contact time (10–120 min), initial concentration of CIP (10–100 mg/L), adsorbent dosage (0.1–1 g/L) and pH (3–9) were evaluated. The isotherm and kinetics studies of the CIP adsorption onto the studied adsorbents were also carried out. The adsorption efficiency increases by increasing the contact time and adsorbent dosage, while it increased by increasing the CIP initial concentration. The results showed that higher CIP adsorption efficiency was observed at pH = 7, adsorbent dosage of 0.5 g/L, CIP concentration of 30 mg/L and contact time of 120 min. The isotherm and kinetics studies revealed that the CIP adsorption data were better described by the Langmuir isotherm model and pseudo-second-order kinetics equation model. It can be concluded that both of these adsorbents have suitable potential to remove the CIP from aqueous solution but this ability is greater in MMWCNTs.

Keywords: magnetic multi-walled carbon nanotube; adsorption; ciprofloxacin; isotherm and kinetics; aqueous solutions

Acknowledgements

The study was supported by the Vice-Chancellor for Research and Technology, Hamadan University of Medical Sciences.

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Received: 2019-07-08
Revised: 2019-09-17
Accepted: 2019-10-15
Published Online: 2019-12-21

© 2020 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/ijcre-2019-0130
Keywords for this article
magnetic multi-walled carbon nanotube; adsorption; ciprofloxacin; isotherm and kinetics; aqueous solutions

Articles in the same Issue

  1. Articles
  2. Effect of Ni Reducibility on Anisole Hydrodeoxygenation Activity in the La-Ni/γ-Al2O3 Catalytic System
  3. Electrochemical Mechanism for the Preparation of Fe-Si Alloys by Melts Electrodeposition
  4. NOx reduction by CO over Fe/ZSM-5: A comparative study of different preparation techniques
  5. Investigation of Hydrodynamic and Heat Transfer Characteristics of Gas-liquid Taylor flow in Square Microchannel
  6. Modeling of Non-Newtonian Flow in an Inverted Cone Foam Breaker
  7. Numerical Investigations of a Passive Micromixer Based on Minkowski Fractal Principle
  8. Magnetic Multi-walled Carbon Nanotube as Effective Adsorbent for Ciprofloxacin (CIP) Removal from Aqueous Solutions: Isotherm and Kinetics Studies
  9. Synthesis and Characterization of N- Doped ZnO-γAl2O3 Nanoparticles for Photo-catalytic Application
  10. Intensified Photocatalytic Degradation of Solophenyl Scarlet BNLE in Simulated Textile Effluents Using TiO2 Supported on Cellulosic Tissue
  11. Hetero-structured Iron Molybdate Nanoparticles: Synthesis, Characterization and Photocatalytic Application
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