132239 20260217205504.0 doi 10.1039/d3ra07390d sideral 137266 ART-2024-137266 eng Yang, Zhuo Ferrocenylselenoether and its cuprous cluster modified TiO2 as visible-light photocatalyst for the synergistic transformation of N-cyclic organics and Crvi 2024 Access copy available to the general public Unrestricted In this study, fcSe@TiO2 and [Cu2I2(fcSe)2]n@TiO2 nanosystems based on ferrocenylselenoether and its cuprous cluster were developed and characterized by X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HR-TEM), energy dispersive X-ray spectroscopy (EDX), and electron paramagnetic resonance (EPR). Under optimized conditions, 0.2 g L−1 catalyst, 20 mM H2O2, and initial pH 7, good synergistic visible light photocatalytic tetracycline degradation and Cr(VI) reduction were achieved, with 92.1% of tetracycline and 64.5% of Cr(VI) removal efficiency within 30 minutes. Mechanistic studies revealed that the reactive species ˙OH, ˙O2−, and h+ were produced in both systems through the mutual promotion of Fenton reactions and photogenerated charge separation. The [Cu2I2(fcSe)2]n@TiO2 system additionally produced 1O2 from Cu+ and ˙O2−. The advantages of the developed nanosystems include an acidic surface microenvironment provided by Se⋯H+, resourceful product formation, tolerance of complex environments, and excellent adaptability in refractory N-cyclic organics. info:eu-repo/semantics/openAccess by-nc https://creativecommons.org/licenses/by-nc/4.0/deed.es 4.6 2024 CHEMISTRY, MULTIDISCIPLINARY 76 / 239 = 0.318 2024 Q2 T1 0.777 2024 Chemical Engineering (miscellaneous) 2024 Q1 Chemistry (miscellaneous) 2024 Q2 7.6 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Wang, Jinshan Li, Aimin Wang, Chao Ji, Wei Pires, Elísabet Universidad de Zaragoza (orcid)0000-0002-2676-8814 Yang, Wenzhong Jing, Su 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 14, 2 (2024), 1488-1500 RSC ADVANCES RSC Advances 2046-2069 4864617 http://zaguan.unizar.es/record/132239/files/texto_completo.pdf Versión publicada 2814269 http://zaguan.unizar.es/record/132239/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:132239 articulos driver 2026-02-17-20:22:48 ARTICLE