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Green synthesis of Ag nanoparticles from Argemone mexicana L. leaf extract coated with MOF-5 for the removal of metronidazole antibiotics from aqueous solution.
Oni, Babalola Aisosa; Sanni, Samuel Eshorame; Agu, Kingsley Chukwunonso; Tomomewo, Olusegun Stanley.
Afiliación
  • Oni BA; Department of Chemical Engineering, China University of Petroleum, 102200, Beijing City, China; Department of Energy Engineering, University of North Dakota, 58203, Grand Forks, ND, United States. Electronic address: babalola.oni@covenantuniversity.edu.ng.
  • Sanni SE; Department of Chemical Engineering, Covenant University, Km 10 Idiroko Road, PMB 1023, Ota, Nigeria.
  • Agu KC; Department of Chemistry and Biochemistry, Central Michigan University, 49858, Mount Pleasant, MI, United States; Department of Medical Biochemistry, University of Benin, 300001, Benin City, Nigeria.
  • Tomomewo OS; Department of Energy Engineering, University of North Dakota, 58203, Grand Forks, ND, United States.
J Environ Manage ; 342: 118161, 2023 Sep 15.
Article en En | MEDLINE | ID: mdl-37210822
There are growing concerns about the toxicity of metronidazole (MNZ) antibiotics in wastewater, which must be removed. This study used AgN/MOF-5 (1:3) to investigate the adsorptive removal of MNZ antibiotics from wastewater. Green synthesis of Ag-nanoparticles was from Argemone mexicana leaf aqueous extract blended with the synthesized MOF-5 in 1:3 by proportion. The adsorption materials were characterized by scanning electron microscope (SEM), N2 adsorption-desorption analysis, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The surface area increased due to the appearance of micropores. Besides, the efficiency of AgN/MOF-5 (1:3) for MNZ removal was evaluated by adsorption properties, including key influential parameters (adsorbent dosage, pH, contact time, etc.) and adsorption mechanism, kinetics/isotherms. The results from the adsorption process conformed to pseudo-second-order kinetics (R2 = 0.998) and well fitted with the Langmuir isotherm having 191.1 mg/g maximum adsorption capacity. The adsorption mechanism of AgN/MOF-5 (1:3) was due to the interactions of π-π stacking, Ag-N-MOF covalent bonding and hydrogen bonding. Thus, AgN/MOF-5 (1:3) is a potential adsorbent for the removal of aqueous MNZ. The adsorption process is endothermic, spontaneous, and feasible based on the obtained thermodynamic parameter of ΔHO and ΔSO having 14.72 and 0.129 kJ/mol respectively.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Argemone / Nanopartículas del Metal País/Región como asunto: Mexico Idioma: En Revista: J Environ Manage Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Argemone / Nanopartículas del Metal País/Región como asunto: Mexico Idioma: En Revista: J Environ Manage Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido