2026-06-28T20:40:27Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1199762025-05-13T00:10:22Zcom_20.500.14352_14col_20.500.14352_15

Enhanced photocatalysis by defect-engineered CeO2 with sulfite activation under visible light irradiation Han, Yaning Chen, Xiaowei Tinoco Rivas, Miguel Fernández García, Susana Hungría, Ana Belén Li, Youxun Nai, Jiyuan Wu, Ren'an Aguinaco, Almudena Blanco, Eduardo Calvino, José Juan Jiang, Lei Sulfite-based advanced oxidation processes (s-AOPs) have recently garnered significant attention due to their ability to generate highly oxidative sulfate radicals and eliminate contaminants from water. A state-of-the-art platform has been developed through the synergistic combination of s-AOP and photocatalysis under visible light as weak as ambient indoor daylight. This platform achieved an enhanced degradation efficiency for defect-engineered CeO2 nanocubes by using sodium sulfite instead of SO2, resulting in a synergy factor of up to 88%. The reaction pathways, intermediates, ion leaching and the possible influence of aqueous conditions during the methyl orange degradation have been investigated. The CeO2/Na2SO3/vis-light platform exhibits promising prospect as a system to enhance conventional s-AOP in wastewater treatment or disinfection. It demonstrates excellent performance in terms of pH sensitivity, anion influence, and resistance to leaching. This highlights its significant potential for practical applications and future process scale-up. 2025-05-12T08:19:50Z 2025-05-12T08:19:50Z 2025-05-12T08:19:50Z 2024-12-30 journal article https://hdl.handle.net/20.500.14352/119976 0169-4332 10.1016/j.apsusc.2024.161072 eng info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113809RB-C33/ES/OBTENCION DE HIDROGENO VERDE MEDIANTE REFORMADO CATALITICO EN FASE LIQUIDA DE COMPUESTOS DERIVADOS DE LA BIOMASA/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113006RB-I00/ES/METALES NOBLES ULTRADISPERSOS SOBRE CAPAS ULTRAFINAS DE OXIDOS MODELO BASADOS EN CERIO: APLICACIONES EN PROCESOS DE CATALISIS MEDIOAMBIENTAL/ PID2022-142312NB-I00 UCA/REC67VPCT/2021 Han, Y.; Chen, X.; Tinoco, M.; Fernández-Garcia, S.; Hungría, A. B.; Li, Y.; Nai, J.; Wu, R.; Aguinaco, A.; Blanco, E.; Calvino, J. J.; Jiang, L. Enhanced Photocatalysis by Defect-Engineered CeO2 with Sulfite Activation under Visible Light Irradiation. Applied Surface Science 2024, 678, 161072. https://doi.org/10.1016/j.apsusc.2024.161072. embargoed access Elsevier