Feni3@Sio2 Magnetic Nanocomposite As a Highly Efficient Fenton-Like Catalyfor Humic Acid Adsorption and Degradation in Neutral Environments Publisher



Khodadadi M^{1, 2} ; Ehrampoush MH³ ; Allahresani A⁴ ; Ghaneian MT³ ; Lotfi MH⁵ ; Mahvi AH^{6, 7} Show Affiliations
Source: Desalination and Water Treatment Published:2018

Abstract

In this research, the ability of Fenton-like catalytic process in the presence of H2 O2 for degradation of humic acid in simulated water was studied. In this regard, FeNi3 nanoparticles were synthesized by the coprecipitation method, using SiO2 . The properties of the prepared FeNi3 @SiO2 were assessed using Fourier transform infrared spectroscopy, vibrating sample magnetometer, field-emission scanning electron microscopy and transmission electron microscopy. The studied parameters were pH (3, 5, 7, 9 and 11), contact time (5–180 min), nanocomposite dose (0.005–0.1 g/L), concentration of humic acid (2–15 mg/L) and concentration of H2 O2 (50–200 mg/L). The highest removal percentage of humic acid was 100% at pH = 7, with humic acid concentration of 10 PPM, FeNi3 @SiO2 dosage of 0.1 g/L and H2 O2 dosage of 200 mg/L. According to the results, the Fenton-like catalytic process of FeNi3 @SiO2 /H2 O2 had high efficiency in removing humic acid from aquatic environment. © 2018, Desalination Publications. All rights reserved.