Synthesis and photodegradation performance of a heterostructure ferromagnetic photocatalyst based on MWCNTs functionalized with (3-glycidyloxypropyl)trimethoxysilane and decorated with tungsten trioxide for metronidazole and acetaminophen degradation in aqueous environments.

Autor: Ghasemzadeh MS; Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, P.O. Box, Mashhad, 91779-48944, Iran.; Industrial Catalysts, Adsorbents and Environment Lab., Oil and Gas Research Institute, Ferdowsi University of Mashhad, P.O. Box, Mashhad, 91779-48974, Iran., Ahmadpour A; Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, P.O. Box, Mashhad, 91779-48944, Iran. ahmadpour@um.ac.ir.; Industrial Catalysts, Adsorbents and Environment Lab., Oil and Gas Research Institute, Ferdowsi University of Mashhad, P.O. Box, Mashhad, 91779-48974, Iran. ahmadpour@um.ac.ir.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Aug; Vol. 31 (36), pp. 49059-49078. Date of Electronic Publication: 2024 Jul 23.
DOI: 10.1007/s11356-024-34405-4
Abstrakt: The presence of metronidazole (MNZ) and acetaminophen (ACE) in aquatic environments has raised growing concerns regarding their potential impact on human health. Incorporating various patterns into a photocatalytic material is considered a critical approach to achieving enhanced photocatalytic efficiency in the photocatalysis process. In this study, WO 3 nanoparticles, which were immobilized onto ferromagnetic multi-walled carbon nanotubes that were functionalized using (3-glycidyloxypropyl)trimethoxysilane (FMMWCNTs@GLYMO@WO 3 ), exhibited remarkable efficiency in removing MNZ and ACE (93% and 97%) in only 15 min. In addition, the new visible-light FMMWCNTs@GLYMO@WO 3 nanoparticles as a magnetically separable photocatalyst were characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), EDS-mapping, vibrating sample magnetometry (VSM), thermogravimetric analysis (TGA), diffuse reflectance spectroscopy (DRS), high-performance liquid chromatography (HPLC), and total organic carbon (TOC) due to detailed studies (morphological, structural, magnetic and optical properties) of the photocatalyst. In-depth spectroscopic and microscopic characterization of the newly developed ferromagnetic FMMWCNTs@GLYMO@WO₃ (III) photocatalyst revealed a spherical morphology, with nanoparticle diameters averaging between 23 and 39 nm. Compared to conventional multiwall carbon nanotube and WO₃ photocatalysts, FMMWCNTs@GLYMO@WO₃ (III) demonstrated superior photocatalytic activity. Remarkably, it exhibited excellent reusability, maintaining its efficiency over a minimum of five cycles in the degradation of metronidazole (MNZ) and acetaminophen (ACE).
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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