RT Journal Article
T1 Reusable Fe₃O₄/SBA15 nanocomposite as an efficient photo-Fenton catalyst for the removal of sulfamethoxazole and Orange II
A1 González-Rodríguez, Jorge
A1 Fernández Fernández, Lucía
A1 Vargas Osorio, Zulema
A1 Piñeiro Redondo, Yolanda
A1 Rivas Rey, José
A1 Feijoo Costa, Gumersindo
A1 Moreira Vilar, María Teresa
K1 Magnetic nanoparticles
K1 Visible light
K1 Photo-Fenton
K1 Sulfamethoxazole
K1 Orange II
K1 Reuse
K1 Reactor
AB Today, the presence of recalcitrant pollutants in wastewater, such as pharmaceuticals or other organic compounds, is one of the main obstacles to the widespread implementation of water reuse. In this context, the development of innovative processes for their removal becomes necessary to guarantee effluent quality. This work presents the potentiality of magnetic nanoparticles immobilized on SBA-15 mesoporous silica as Fenton and photo-Fenton catalysts under visible light irradiation. The influence of the characteristics of the compounds and nanoparticles on the removal yield was investigated. Once the key aspects of the reaction mechanism were analyzed, to evaluate the feasibility of this process, an azo dye (Orange II) and an antibiotic (sulfamethoxazole) were selected as main target compounds. The concentration of Orange II decreased below the detection limit after two hours of reaction, with mineralization values of 60%. In addition, repeated sequential experiments revealed the recoverability and stability of the nanoparticles in a small-scale reactor. The benchmarking of the obtained results showed a significant improvement of the process using visible light in terms of kinetic performance, comparing the results to the Fenton process conducted at dark. Reusability, yield and easy separation of the catalyst are its main advantages for the industrial application of this process
PB MDPI
YR 2021
FD 2021
LK http://hdl.handle.net/10347/29454
UL http://hdl.handle.net/10347/29454
LA eng
NO González-Rodríguez, J., Fernández, L., Vargas-Osorio, Z., Vázquez-Vázquez, C., Piñeiro, Y., Rivas, J., Feijoo, G., Moreira, M.T. Reusable Fe₃O₄/SBA15 nanocomposite as an efficient photo-Fenton catalyst for the removal of sulfamethoxazole and Orange II. Nanomaterials 2021, 11, 533
NO This research was supported by two projects granted by Spanish Ministry of Science, Innovation and Universities: HP-NANOBIO Project, grant number PID2019-111163RB-I00; CLUSTERCAT Project, grant number MAT2015-67458-P; and Fundación Ramón Areces (Spain), grant number CIVP18A3940.
DS Minerva
RD 22 abr 2026