Graphene oxide–Fe2V4O13 hybrid material as highly efficient hetero-Fenton catalyst for degradation of methyl orange

International Journal of Industrial Chemistry

دوره 10، شماره 1، بهار 2019، صفحه 77-87  

نوع مقاله: research article

شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-019-0173-8

نویسندگان

Inbasekaran Muthuvel ^{1، 2}؛ Kaliyamoorthy Gowthami³؛ Ganesamoorthy Thirunarayanan³؛ Palusamy Suppuraj³؛ Balu Krishnakumar⁴؛ Abílio José Fraga do Nascimento Sobral⁴؛ Meenakshisundaram Swaminathan⁵

¹Advanced Photocatalysis Laboratory, Department of Chemistry, Annamalai University, Annamalainagar, Tamilnadu 608 002, India

²Photocatalysis Laboratory, Department of Chemistry, M.R. Govt. Arts College, Mannargudi, Tamilnadu 614 001, India

³Advanced Photocatalysis Laboratory, Department of Chemistry, Annamalai University, Annamalainagar, Tamilnadu, 608 002, India

⁴Department of Chemistry, University of Coimbra, 3004-535, Coimbra, Portugal

⁵Nanomaterials Laboratory, International Research Centre, Kalasalingam University, Krishnankoil, Tamilnadu, 626 126, India

چکیده

A new hetero-Fenton type GO/Fe₂V₄O₁₃ was developed and characterized by FT-IR, XRD, HR-SEM, TEM, and UV-DRS analysis. XRD pattern reveals the presence of monoclinic phase of Fe₂V₄O₁₃ in the catalyst. TEM images show the particle sizes in the range from 20 to 100 nm and the nice dispersion of nanosized Fe₂V₄O₁₃ particles on the surface of the graphene oxide. The hetero-Fenton catalyst was used for the degradation of Methyl orange (MO) under UV and solar light. The mineralization rate was influenced by H₂O₂ concentration, pH, and catalyst loading. The reusability 21% GO/Fe₂V₄O₁₃ was analyzed. GO/Fe₂V₄O₁₃ was stable and reusable up to five cycles with 95% degradation. Solar experiments were carried out at different initial solution pH with Fe₂V₄O₁₃ and 21% GO/Fe₂V₄O₁₃. Both catalysts show maximum degradation efficiency at pH 6. Mechanism of heterophoto-Fenton process is also proposed. This study reveals that Fe₂V₄O₁₃ and 21% GO/Fe₂V₄O₁₃ catalysts are efficient under UV and solar light for the degradation MO and can be utilized for the treatment of dye wastewater.

کلیدواژه‌ها

Fe2V4O13 · Graphene oxide · Wastewater treatment · Hetero؛ Fenton reaction · Photocatalysis