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Enhanced Fenton Degradation of Tetracycline over Cerium-Doped MIL88-A/g-C3N4: Catalytic Performance and Mechanism.
Eltaweil, Abdelazeem S; Galal, Amira M; Abd El-Monaem, Eman M; Al Harby, Nouf; Batouti, Mervette El.
Afiliación
  • Eltaweil AS; Department of Engineering, Faculty of Engineering and Technology, University of Technology and Applied Sciences, Ibra 400, Oman.
  • Galal AM; Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21934, Egypt.
  • Abd El-Monaem EM; Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21934, Egypt.
  • Al Harby N; Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21934, Egypt.
  • Batouti ME; Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia.
Nanomaterials (Basel) ; 14(15)2024 Jul 30.
Article en En | MEDLINE | ID: mdl-39120389
ABSTRACT
Since enormous amounts of antibiotics are consumed daily by millions of patients all over the world, tons of pharmaceutical residuals reach aquatic bodies. Accordingly, our study adopted the Fenton catalytic degradation approach to conquer such detrimental pollutants. (Ce0.33Fe) MIL-88A was fabricated by the hydrothermal method; then, it was supported on the surface of g-C3N4 sheets using the post-synthetic approach to yield a heterogeneous Fenton-like (Ce0.33Fe) MIL-88A/10%g-C3N4 catalyst for degrading the tetracycline hydrochloride drug. The physicochemical characteristics of the catalyst were analyzed using FT-IR, SEM-EDX, XRD, BET, SEM, and XPS. The pH level, the H2O2 concentration, the reaction temperature, the catalyst dose, and the initial TC concentration were all examined as influencing factors of TC degradation efficiency. Approximately 92.44% of the TC was degraded within 100 min under optimal conditions pH = 7, catalyst dosage = 0.01 g, H2O2 concentration = 100 mg/L, temperature = 25 °C, and TC concentration = 50 mg/L. It is noteworthy that the practical outcomes revealed how the Fenton-like process and adsorption work together. The degradation data were well-inspected by first-order and second-order models to define the reaction rate. The synergistic interaction between the (Ce0.33Fe) MIL-88A/10%g-C3N4 components produces a continuous redox cycle of two active metal species and the electron-rich source of g-C3N4. The quenching test demonstrates that •OH is the primary active species for degrading TC in the H2O2-(Ce0.33Fe) MIL-88A/10%g-C3N4 system. The GC-MS spectrum elucidates the yielded intermediates from degrading the TC molecules.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Omán Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Omán Pais de publicación: Suiza