Ability of FeNi3/SiO2/TiO2 nanocomposite to degrade amoxicillin in wastewater samples in solar light-driven processes

•Amoxicillin removal was investigated using the solar light–photocatalytic process.•FeNi3/SiO2/TiO2 nanocomposite was prepared and applied as the photocatalyst.•96% amoxicillin removal was achieved after 30 min of degradation reactions.•FeNi3/SiO2/TiO2 has high stability over four photocatalytic cyc...

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Bibliographic Details
Published in:South African journal of botany 2023-02, Vol.153, p.195-202
Main Authors: Alwared, Abeer I., Sulaiman, Fadia A., Raad, Hanan, Al-Musawi, Tariq J., Mohammed, Noor A.
Format: Article
Language:English
Subjects:
Amoxicillin degradation
FeNi3/SiO2/TiO2 photocatalyst
Kinetic model
Photocatalysis
Solar light
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Summary:•Amoxicillin removal was investigated using the solar light–photocatalytic process.•FeNi3/SiO2/TiO2 nanocomposite was prepared and applied as the photocatalyst.•96% amoxicillin removal was achieved after 30 min of degradation reactions.•FeNi3/SiO2/TiO2 has high stability over four photocatalytic cycles of amoxicillin. This research aims to develop a novel photocatalyst with excellent photocatalytic performance and investigate its potential to remove amoxicillin (AMOX) from an aqueous solution. First, FeNi3/SiO2/TiO2 was characterized using X-ray diffraction, scanning electron microscope, Brunauer–Emmett–Teller analysis, Fourier transform infrared spectroscopy, and scanning electron microscopy. Then, the FeNi3/SiO2/TiO2 nanocomposite was tested for its ability to degrade AMOX in a batch solar-photocatalysis reactor. The effects of parameters such as pH, contact time, initial concentration, and nanocomposite dose were investigated during the experiments. The results demonstrated the performance by degrading 10 mg/L of AMOX solution to 96 % after 30 min in the dark and 90 min of solar irradiation and using 50 mg/L of nanocomposite at pH =5. Furthermore, the kinetic of the degradation rate of AMOX followed the pseudo-first-order equation with R2 > 0.987, and this reaction's constant rate of degradation was obtained as 0.03 1/min. The used catalyst showed high recycling efficiency and stability over four photocatalytic cycles. This study showed that FeNi3/SiO2/TiO2 magnetic nanocomposite in a solar–photocatalytic reactor under optimum operating conditions has a reasonable efficiency in the degradation of AMOX.
ISSN:0254-6299
1727-9321
DOI:10.1016/j.sajb.2022.12.031