Comparison of ibuprofen photodegradation by persulfate-assisted and magnetic field-assisted photocatalysis processes
In the present study, two approaches combining photocatalysis in the presence of TiO2 nanosheets with ZnFe2O4/(P,S)-doped g-C3N4 heterocomposite with magnetic field and persulfate activation were investigated. Combining TiO₂ with layered structures, elemental-doped carbon nitride (g-C₃N₄), and zinc...
| Authors: | , , , , |
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| Format: | article |
| Status: | Versión aceptada para publicación |
| Publication Date: | 2026 |
| Country: | España |
| Institution: | Universidad Pública de Navarra |
| Repository: | Academica-e. Repositorio Institucional de la Universidad Pública de Navarra |
| OAI Identifier: | oai:dnet:academicae__::0f2b8f027348c358ad1d3446c668ee98 |
| Online Access: | https://doi.org/10.1016/j.cep.2026.110740 https://hdl.handle.net/2454/56934 |
| Access Level: | Embargoed access |
| Keyword: | Magnetic photocatalyst Magnetic field effect Persulfate-assisted photocatalysis |
| Summary: | In the present study, two approaches combining photocatalysis in the presence of TiO2 nanosheets with ZnFe2O4/(P,S)-doped g-C3N4 heterocomposite with magnetic field and persulfate activation were investigated. Combining TiO₂ with layered structures, elemental-doped carbon nitride (g-C₃N₄), and zinc ferrite (ZnFe₂O₄) improved light absorption, charge separation, and magnetic recovery properties. Furthermore, coupling photocatalysis with persulfate activation enhanced pollutant degradation efficiency through the formation of long-lived reactive species. An additional innovative approach involved applying an external magnetic field to mainly inhibit charge carriers recombination. Both processes were efficient in the removal of ibuprofen, a drug frequently detected in aqueous systems. Sulfate radicals (SO4•−), hydroxyl radicals (HO•) and superoxide radicals (O2•−) were responsible for ibuprofen transformation and degradation. The improved photocatalytic activity shows potential for effective degradation of persistent pharmaceutical compounds in water, while the use of persulfates and magnetic field opens new possibilities for more advanced water treatment processes. |
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