6533b7cffe1ef96bd1258745
RESEARCH PRODUCT
Heterostructured metal oxides-ZnO nanorods films prepared by SPPS route for photodegradation applications
Zexin YuHanlin LiaoMeimei LiuRaphaël SchneiderMichel MoliereHatem Moussasubject
Materials science02 engineering and technology010402 general chemistry01 natural sciencesMetalsymbols.namesakeSolution precursor plasma sprayMaterials ChemistryPhotodegradationComputingMilieux_MISCELLANEOUSHeterojunction[CHIM.MATE]Chemical Sciences/Material chemistry[CHIM.CATA]Chemical Sciences/CatalysisSurfaces and InterfacesGeneral Chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesSurfaces Coatings and FilmsChemical engineeringvisual_artsymbolsPhotocatalysisvisual_art.visual_art_mediumNanorod0210 nano-technologyRaman spectroscopyVisible spectrumdescription
Abstract This work presents the first preparation using the Solution Precursor Plasma Spray process of heterostructured films associating ZnO nanorods (NRs) and various metal oxides (CuO, Fe2O3 and Co3O4) by Solution Precursor Plasma Spray process. These CuO/ZnO, Fe2O3/ZnO and Co3O4/ZnO films exhibit hierarchically chocolate sticks-like, dandelion-like or chrysanthemum-like surface morphologies. These heterostructures were confirmed by SEM, XRD, EDS and Raman analyses. The bandgaps of heterostructured films are narrower than that of pure ZnO. The CuO/ZnO film exhibits the highest photocatalytic activity both under UV and visible light irradiation for the degradation of the Orange II dye due to the homogenous distribution of CuO at the surface of ZnO. The high photocatalytic performances originate from the increased visible light absorption and from the effective separation of charge carriers in CuO/ZnO films compared to ZnO NRs.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-10-01 | Surface and Coatings Technology |