Seyed Ershad MORADI, Shayessteh DADFARNIA, Ali Mohammad Haji SHABANI, Saeed EMAMI

92107

Microwave-enhanced Fenton-like degradation by surface-modified metal-organic frameworks as a promising method for removal of dye from aqueous samples

In the current research, the sulfonated metal-organic framework loaded on iron oxide nanoparticles, Fe$_{3}$O$_{4}$@MIL-100(Fe)-OSO$_{3}$H, has been synthesized and utilized as a Fenton-like catalyst for the decolorization of aqueous solutions containing methyl orange (MO) dye as a model organic pollutant. The morphology and structure of the catalyst were characterized by X-ray powder diffraction, transmission electron microscopy, Brunauer-Emmett-Teller analysis, thermogravimetric analysis, Fourier transform infrared spectroscopy, and UV-Vis diffuse reflectance spectroscopy. The effects of various parameters on MO degradation were investigated and the optimum conditions for MO degradation were found to be an initial concentration of MO of 100 mg/L, initial concentration of H$_{2}$O$_{2}$ of 40 mg/L, pH 3.0, and microwave power of 500 W. The results indicated that the removal of the MO was fast; the kinetic data followed a pseudo first-order model and under microwave irradiation time of 6 min it degraded up to 99.9%. Thus, microwave-induced Fenton-like degradation using Fe$_{3}$O$_{4}$@MIL-100(Fe)-OSO$_{3}$H is a promising technology for the removal of dye from wastewater.
Keywords:

Microwave-induced Fenton-like degradation methyl orange, metal-organic frameworks, iron oxide nanoparticles, sulfonation,

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Turkish Journal of Chemistry-Cover
  • ISSN: 1300-0527
  • Yayın Aralığı: 6
  • Yayıncı: TÜBİTAK
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