RT Journal Article
T1 Fenton and Photo-Fenton Nanocatalysts Revisited from the Perspective of Life Cycle Assessment
A1 Feijoo Moreira, Sara
A1 González-Rodríguez, Jorge
A1 Fernández Fernández, Lucía
A1 Vázquez Vázquez, Carlos
A1 Feijoo Costa, Gumersindo
A1 Moreira Vilar, María Teresa
K1 LCA
K1 Environmental impact
K1 Fenton
K1 Photocatalysis
K1 Visible light
K1 SBA15
K1 Magnetite
AB This study provides an overview of the environmental impacts associated with the production of different magnetic nanoparticles (NPs) based on magnetite (Fe3O4), with a potential use as heterogeneous Fenton or photo-Fenton catalysts in wastewater treatment applications. The tendency of Fe3O4 NPs to form aggregates in water makes necessary their decoration with stabilizing agents, in order to increase their catalytic activity. Different stabilizing agents were considered in this study: poly(acrylic acid) (PAA), polyethylenimine (PEI) and silica (SiO2), as well as the immobilization of the magnetite-based catalysts in a mesoporous silica matrix, SBA-15. In the case of photo-Fenton catalysts, combinations of magnetite NPs with semiconductors were evaluated, so that magnetic recovery of the nanomaterials is possible, thus allowing a safe discharge free of NPs. The results of this study suggest that magnetic nanoparticles coated with PEI or PAA were the most suitable option for their applications in heterogeneous Fenton processes, while ZnO-Fe3O4 NPs provided an interesting approach in photo-Fenton. This work showed the importance of identifying the relevance of nanoparticle production strategy in the environmental impacts associated with their use
PB MDPI
YR 2020
FD 2020
LK http://hdl.handle.net/10347/21903
UL http://hdl.handle.net/10347/21903
LA eng
NO Feijoo, S.; González-Rodríguez, J.; Fernández, L.; Vázquez-Vázquez, C.; Feijoo, G.; Moreira, M.T. Fenton and Photo-Fenton Nanocatalysts Revisited from the Perspective of Life Cycle Assessment. Catalysts 2020, 10, 23
NO This research was supported by two projects granted by Spanish Ministry of Science and Innovation: MODENA Project CTQ2016-79461-R and CLUSTERCAT Project MAT2015-67458-P, and Fundación Ramón Areces, Spain (Project CIVP18A3940). The authors belong to the Galician Competitive Research Groups ED431C-2017/22 and ED431C-2017/29 and CRETUS Institute
DS Minerva
RD 23 abr 2026