Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)Rincón, JavierHernandez Peña, Sergio Andres2023-01-252023-01-252022-12-13http://repositorio.uan.edu.co/handle/123456789/7397In Colombia in 2015, 406,078 tons of hazardous waste were produced, of which about 28% were discarded untreated. In this sense, the tannery sector uses chromium salts to stabilize the collagen fibers, adding chromium to the process effluent. Chromium is a heavy metal, which due to its bioaccumulation and persistence in water generates environmental and health problems. For this reason, a nanocomposite with reduced toxicity and low cost, with an iron oxide core coated with titanium oxide was developed to remove chromium from effluents.En Colombia en 2015 se produjeron 406.078 toneladas de residuos peligrosos, de los cuales alrededor del 28% fueron desechados sin tratar. En este sentido, el sector de curtiembres emplea sales de cromo para estabilizar las fibras de colágeno, añadiendo cromo al efluente del proceso. El cromo es un metal pesado, que debido a su bioacumulación y persistencia en el agua genera problemas ambientales y de salud. Por esta razón, se desarrolló un nanocompuesto con toxicidad reducida y bajo costo, con un núcleo de óxido de hierro recubierto con óxido de titanio para eliminar el cromo de los efluentes. Las nanopartículas de hierro se sintetizaron a través de una vía directa de coprecipitación asistida por ultrasonidos y luego se recubrieron con isopropóxido de titanio como precursor de la Titania.spaAcceso abiertoremediaciónmetales pesadosfotocatalisiscromonanoparticulasoxido de hierro.572Trabajo de grado (Pregrado y/o Especialización)remediationheavy metalsphotocatalysischromiumnanoparticles, iron oxide.info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Alyüz, B., & Veli, S. (2009). Kinetics and equilibrium studies for the removal of nickel and zinc from aqueous solutions by ion exchange resins. Journal of Hazardous Materials, 167(1–3), 482–488. https://doi.org/10.1016/j.jhazmat.2009.01.006Américo-Pinheiro, J. H. P., Bellatto, L. C., Mansano, C. F. M., da Silva Vilar, D., Ferreira, L. F. R., Torres, N. H., Bilal, M., & Iqbal, H. M. N. (2021). Monitoring microbial contamination of antibiotic resistant Escherichia coli isolated from the surface water of urban park in southeastern Brazil. Environmental Nanotechnology, Monitoring and Management, 15(June 2020). https://doi.org/10.1016/j.enmm.2021.100438Antonio Ramón, J., David Amaya, J., & Manrique Losada, L. (2013). Photocatalytic Degradation of Congo Red in a Parabolic Solar Collector and Titanium Dioxide in Suspension. Revista de Investigaciones -Universidad Del Quindio, 24(August 2013), 71–83. http://blade1.uniquindio.edu.co/uniquindio/revistainvestigaciones/adjuntos/pdf/4b0b_ Art 7. Galera.pdfAnucha, C. B., Altin, I., Bacaksiz, E., & Stathopoulos, V. N. (2022). Titanium dioxide (TiO₂)-based photocatalyst materials activity enhancement for contaminants of emerging concern (CECs) degradation: In the light of modification strategies. Chemical Engineering Journal Advances, 10(February), 100262. https://doi.org/10.1016/j.ceja.2022.100262Aroua, M. K., Zuki, F. M., & Sulaiman, N. M. (2007). Removal of chromium ions from aqueous solutions by polymer-enhanced ultrafiltration. Journal of Hazardous Materials, 147(3), 752–758. https://doi.org/10.1016/j.jhazmat.2007.01.120Bhateria, R., & Singh, R. (2019). A review on nanotechnological application of magnetic iron oxides for heavy metal removal. Journal of Water Process Engineering, 31(May), 100845. https://doi.org/10.1016/j.jwpe.2019.100845Dasque, A., Gressier, M., Taberna, P. L., & Menu, M. J. (2021). Characterization of chromium (III)-glycine complexes in an acidic medium by UV-visible spectrophotometry and capillary electrophoresis. Results in Chemistry, 3, 3–11. https://doi.org/10.1016/j.rechem.2021.100207Departamento administrativo de la Función Pública. (2015). Decreto 1076 de 2015 Sector Ambiente y Desarrollo Sostenible - EVA - Función Pública. Diario Oficial No. 49.523 de 26 de Mayo de 2015, 1–920. https://www.funcionpublica.gov.co/eva/gestornormativo/norma.php?i=78153DesMarias, T. L., & Costa, M. (2019). Mechanisms of chromium-induced toxicity. Current Opinion in Toxicology, 14(Iii), 1–7. https://doi.org/10.1016/j.cotox.2019.05.003Dey, M., Akter, A., Islam, S., Chandra Dey, S., Choudhury, T. R., Fatema, K. J., & Begum, B. A. (2021). Assessment of contamination level, pollution risk and source apportionment of heavy metals in the Halda River water, Bangladesh. Heliyon, 7(12), e08625. https://doi.org/10.1016/j.heliyon.2021.e08625instname:Universidad Antonio Nariñoreponame:Repositorio Institucional UANrepourl:https://repositorio.uan.edu.co/