| Autor: |
Kedves EZ; Faculty of Physics, Babeş-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania.; Centre of Nanostructured Materials and Bio-Nano Interfaces, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania.; Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, HU-6720 Szeged, Hungary., Bárdos E; Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, HU-6720 Szeged, Hungary., Ravasz A; Centre of Nanostructured Materials and Bio-Nano Interfaces, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania., Tóth ZR; Centre of Nanostructured Materials and Bio-Nano Interfaces, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania.; Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, HU-6720 Szeged, Hungary., Mihálydeákpál S; Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, HU-6720 Szeged, Hungary., Kovács Z; Faculty of Physics, Babeş-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania.; Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, HU-6720 Szeged, Hungary., Pap Z; Centre of Nanostructured Materials and Bio-Nano Interfaces, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania.; Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, HU-6720 Szeged, Hungary.; Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Fântânele 30, RO-400294 Cluj-Napoca, Romania., Baia L; Faculty of Physics, Babeş-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania.; Centre of Nanostructured Materials and Bio-Nano Interfaces, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania.; Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Fântânele 30, RO-400294 Cluj-Napoca, Romania. |
| Abstrakt: |
Orthorhombic molybdenum trioxide (α-MoO 3 ) is well known as a photocatalyst, adsorbent, and inhibitor during methyl orange photocatalytic degradation via TiO 2 . Therefore, besides the latter, other active photocatalysts, such as AgBr, ZnO, BiOI, and Cu 2 O, were assessed via the degradation of methyl orange and phenol in the presence of α-MoO 3 using UV-A- and visible-light irradiation. Even though α-MoO 3 could be used as a visible-light-driven photocatalyst, our results demonstrated that its presence in the reaction medium strongly inhibits the photocatalytic activity of TiO 2 , BiOI, Cu 2 O, and ZnO, while only the activity AgBr is not affected. Therefore, α-MoO 3 might be an effective and stable inhibitor for photocatalytic processes to evaluate the newly explored photocatalysts. Quenching the photocatalytic reactions can offer information about the reaction mechanism. Moreover, the absence of photocatalytic inhibition suggests that besides photocatalytic processes, parallel reactions take place. |
