The Catalytic Activity of Feni3@Sio2 Magnetic Nanoparticles for the Degradation of Tetracycline in the Heterogeneous Fenton-Like Treatment Method Publisher



Khodadadi M¹ ; Hossein Panahi A¹ ; Almusawi TJ² ; Ehrampoush MH³ ; Mahvi AH^{4, 5}
Source: Journal of Water Process Engineering Published:2019

Abstract

FeNi3@SiO2 magnetic nanoparticles catalysts were successfully synthesized and employed in the heterogeneous Fenton-like treatment method for the efficient degradation of antibiotics i.e. tetracycline (TC). The characteristics of the synthesized catalyst were analyzed utilizing XRD, SEM, TEM, BET, and FT-IR measurements, which revealed that the FeNi3@SiO2 nanoparticles possess several unique catalytically properties that make it a promising catalyst material. The degradation mechanism was tested through varying the experimental factors: pH (3–9), FeNi3@SiO2 nanoparticles dose (0.005-0.1 g/L), reaction time (0–180 min), initial TC concentration (10–30 mg/L), and concentration of degradation agent H2O2 (50–200 mg/L). Results revealed that TC degradation was in an escalated level at neutral pH and the degradation performance of FeNi3@SiO2 nanoparticles for this antibiotic varied significantly with the variation of the catalyst dose and H2O2 concentration. Furthermore, the kinetic data follow the pseudo-first-order model well with a maximum TC degradation efficiency of 87%, achieved under optimized environmental conditions. Thus, the present study reveals that FeNi3@SiO2 magnetic nanoparticles are novel, having promising application as an environment-friendly catalyst for TC degradation in the neutral environment. © 2019 Elsevier Ltd