Enhanced Photocatalytic Activity of Rare Earth Metal Nd and Gd doped ZnO Nanostructures2Reportar como inadecuado

Enhanced Photocatalytic Activity of Rare Earth Metal Nd and Gd doped ZnO Nanostructures2 - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1 Department of Chemistry 2 Department of Chemistry 3 Department of Physics

Abstract : Presence of harmful organic pollutants in wastewater effluents causes serious environmental problems and therefore purification of this contaminated water by a cost effective treatment method is one of the most important issue which is in urgent need of scientific research. One such promising treatment technique uses semiconductor photocatalyst for the reduction of recalcitrant pollutants in water. In the present work, rare earth metals Nd and Gd doped ZnO nanostructured photocatalyst have been synthesized by wet chemical method. The prepared samples were characterized by X-ray diffraction XRD, Field Emission Scanning Electron Microscopy FESEM and energy dispersive X-ray spectroscopy EDS. The XRD results showed that the prepared samples were well crystalline with hexagonal Wurtzite structure. The results of EDS revealed that rare earth elements were doped into ZnO structure. The effect of rare earth dopant on morphology and photocatalytic degradation properties of the prepared samples were studied and discussed. The results revealed that the rare earth metal doped ZnO samples showed enhanced visible light photocatalytic activity for the degradation of methylene blue dye than pure nano ZnO photocatalyst.

Keywords : FESEM rare earth dopants photocatalytic activity ZnO

Autor: P. Logamani - R. Rajeswari - G. Poongodi -

Fuente: https://hal.archives-ouvertes.fr/


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