Magnetic nano-biocomposite [email protected] (MC) prepared as a new nano-photocatalyst for degradation of ciprofloxacin from aqueous solution

Journal Title: Environmental Health Engineering and Management Journal - Year 2019, Vol 6, Issue 1

Abstract

Background: Antibiotics such as ciprofloxacin (CIP) are even more important in bacterial resistance, even at low concentrations. The aim of this research was to synthesize [email protected] (MC) as a new nano-photocatalyst for degradation of CIP from aqueous solution. Methods: The nano-photocatalyst ([email protected]) was characterized by FESEM, energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), and vibrating sample magnetometer (VSM). Powder XRD and EDS analysis confirmed the formation of pure-phase spinel ferrites. After [email protected] characterization, the effective parameters in removal efficiency of CIP such as reaction time, initial antibiotic concentration, pH, photocatalyst loading, and degradation kinetic were investigated and conditions were optimized. Then, CIP degradation experiments were conducted on the real sample in the optimal conditions. The removal of chemical oxygen demand (COD) was determined under optimum conditions. Results: The structural characterization of the magnetic nanobiocomposite showed that it is in nanoscale, ferromagnetic property, and thermal stability. The optimal conditions were obtained at pH = 7, irradiation time (90 minutes), photocatalyst loading (0.2 g), and initial concentration of CIP (3 mg/L). The removal efficiency of CIP in the optimal conditions was obtained as 80.74% and 72.87% from the synthetic and real samples, respectively. The removal of COD was obtained as 68.26% in this process. The evaluation of kinetic linear models showed that the photocatalytic degradation process was fitted by pseudo-first order kinetic model and Langmuir-Hinshelwood. [email protected] photocatalyst had a good stability and reusability for the fourth runs. Conclusion: The photocatalytic degradation of CIP from aqueous media with [email protected] photocatalyst has a high efficiency, which can be used in the treatment of pharmaceutical wastewaters.

Authors and Affiliations

Alireza Nasiri , Fatemeh Tamaddon , Mohammad Hossein Mosslemin , Majid Amiri Gharaghani , Ali Asadipour

Keywords

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  • EP ID EP45324
  • DOI 10.15171/EHEM.2019.05
  • Views 293
  • Downloads 0

How To Cite

Alireza Nasiri, Fatemeh Tamaddon, Mohammad Hossein Mosslemin, Majid Amiri Gharaghani, Ali Asadipour (2019). Magnetic nano-biocomposite [email protected] (MC) prepared as a new nano-photocatalyst for degradation of ciprofloxacin from aqueous solution. Environmental Health Engineering and Management Journal, 6(1), -. https://europub.co.uk/articles/-A-45324