Comparison of heterogeneous fenton process and adsorption process on magnetic nanocomposite for ciprofloxacin removal from aqueous solutions

• Main Authors: MT. Samadi, R. Shokohi, R. Harati
• Format: Article
• Language: fas
• Published: Qazvin University of Medical Sciences & Health Services 2016-04-01
• Series: The Journal of Qazvin University of Medical Sciences
• Subjects: Nanocomposites; Ciprofloxacin; Adsorption
• Online Access: http://journal.qums.ac.ir/browse.php?a_id=1873&slc_lang=en&sid=1&ftxt=1

Background: Continuous input of antibiotics to the environment can cause many potential problems such as antibiotic resistance in pathogens. Objective: The aim of this study was to compare heterogeneous fenton process and adsorption process on magnetic nanocomposite for ciprofloxacin removal from aqueous solutions. Methods: This experimental study was conducted at the Hamadan University of Medical Science in 2014. The efficiency of magnetic nanocomposite for ciprofloxacin removal was assessed in a batch system considering 15-300 min reaction time, pH 4-10, 30-200 mg/L initial ciprofloxacin concentration, 1-3 g/L adsorbent and 5-25 mmol/L HR2ROR2R. Physical and structural characteristics of the synthesized adsorbent were analyzed using Fourier Transform Infrared Spectra (FTIR) techniques. Findings: The maximum efficiency of heterogeneous fenton process and adsorption process was obtained at pH 4 and 7 in which the efficiency of ciprofloxacin removal was 95% and 87%, respectively. The equilibrium adsorption data was well fitted with Langmuir isotherm. The reaction rate had the best compatibility with pseudo-second-order kinetic model. Conclusion: With regards to the results, magnetic nanocomposite (Fe3O4/MWCNTs) can be considered as an acceptable adsorbent in heterogeneous fenton procces for ciprofloxacin removal from aqueous solutions.