84175 20200716101418.0 doi 10.1016/j.matchemphys.2018.09.068 sideral 108260 ART-2019-108260 eng Dante, Roberto C. Comparison of the activities of C2N and BCNO towards Congo red degradation 2019 Access copy available to the general public Unrestricted An n-type organic carbon nitride semiconductor, C2N, was synthesized by the pyrolysis of uric acid, and its properties were investigated by scanning electron and transmission electron microscopies, X-ray powder diffraction, and vibrational, UV-visible and X-ray photoelectron spectroscopies. This novel material, composed of crystalline flakes, featured a broad absorption centered at 700¿nm, possibly due to charge transfer, and a 2.49¿eV band gap. Its catalytic performance was assessed for the treatment of effluents with the diazo dye Congo red, comparing it with that of boron carbon nitrogen oxide, BCNO. Both wide band gap semiconductors exhibited decolorizing activity in the dark, although the mechanisms were different and were not photocatalytic: BCNO was more effective towards the adsorption-coordination due to the presence of B-O, while C2N was effective towards the adsorption and the advancement of the oxidation reaction. Their kinetic constants (0.19 and 0.02 min-1 for BCNO and C2N, respectively) were comparable to those of intermetallic compounds studied for azo dyes degradation in dark conditions. In view of the high color removal efficiency (97% after 20¿min) and good reusability of BCNO, this study suggests a potential application of this catalyst for wastewater treatment, alone or in combination with C2N. info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.408 2019 0.709 2019 MATERIALS SCIENCE, MULTIDISCIPLINARY 115 / 314 = 0.366 2019 Q2 T2 Materials Science (miscellaneous) 2019 Q2 Condensed Matter Physics 2019 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0003-2713-2786 Martín-Ramos, Pablo Universidad de Zaragoza Chamorro-Posada, Pedro Meejoo-Smith, Siwaporn Vázquez-Cabo, José Rubiños-López, Óscar Lartundo-Rojas, Luis Sánchez-Árevalo, Francisco M. Trakulmututa, Jirawat Rutto, Dario Deebansok, Siraprapha Srikhaow, Assadawoot 5011 500 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Area Ingeniería Agroforestal 221 (2019), 397-408 Mater. chem. phys. MATERIALS CHEMISTRY AND PHYSICS 0254-0584 1482731 http://zaguan.unizar.es/record/84175/files/texto_completo.pdf Postprint 107859 http://zaguan.unizar.es/record/84175/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:84175 articulos driver 2020-07-16-08:38:19 ARTICLE