Photobleaching and mineralization of Orange II by oxone and metal-ions involving Fenton-like chemistry under visible light |
| |
| Affiliation: | 1. Key Laboratory of Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province, Harbin Normal University, Harbin, PR China;2. Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, PR China;1. Institute of Physics, Kazimierz Wielki University in Bydgoszcz, Powstańców Wielkopolskich str., 85-090 Bydgoszcz, Poland;2. Electronics Department of Ivan Franko National University in Lviv, Gen. Tarnavskiy str. 107, 79017 Lviv, Ukraine;3. Institute for Scintillation Materials, NAS of Ukraine, Lenina str. 60, 61001 Kharkiv, Ukraine;1. Department of Chemical Engineering and Food Technology, Faculty of Sciences, University of Cadiz, 11510 Puerto Real, Spain;2. Technische Hochschule Nürnberg, Fakultät Verfahrenstechnik, Research Group Particle Technology and Raw Material Research, Wassertorstr. 10, 90489 Nuremberg, Germany |
| |
| Abstract: | Cu2+ and Fe3+ significantly improved the Orange II photobleaching and mineralization in the presence of oxone. In the presence of Cu2+ and Fe3+ the oxone needed for the photobleaching and total mineralization of the dye was determined along other solution parameters. In air, the photobleaching of Orange II in solution was observed to be complete within 60 min for Cu2+-ions and 30 min for Fe3+-ions showing a considerable faster kinetics with respect to other treatment systems reported until now. The transition metal-ions used seem to couple with oxone forming high oxidizing sulfate species. A reaction mechanism leading to Orange II photobleaching is suggested through a complex formation between the metal-ion and Orange II involves redox reactions activated by visible light. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
