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Enhanced photocatalytic performance and morphology evolvement of PbWO₄ dendritic nanostructures through Eu³⁺ doping

Author:
Yue, Dan, Chen, Dong, Lu, Wei, Wang, Mengnan, Zhang, Xiaoli, Wang, Zhenling, Qian, Guodong
Source:
RSC advances 2016 v.6 no.84 pp. 81447-81453
ISSN:
2046-2069
Subject:
X-ray diffraction, X-ray photoelectron spectroscopy, europium, nanomaterials, photocatalysis, photocatalysts, rhodamines, scanning electron microscopy, transmission electron microscopy
Abstract:
Eu³⁺ doped PbWO₄ dendritic nanostructures have been prepared by a facile hydrothermal technique and characterized by XRD, SEM, TEM, XPS and PL spectroscopy. The results indicate that the changing of the Eu³⁺ doping concentration in a reasonable range can adjust the morphology, and has no obvious effect on the phase structure of the obtained materials. Moreover, the Eu³⁺ doping can lead to the enhancement of photocatalytic activity of PbWO₄. Compared with pure PbWO₄ dendritic nanostructures, the PbWO₄:x%Eu³⁺ samples exhibit improved photocatalytic activity in the decomposition of Rhodamine B (RhB). The enhanced performance of the photocatalyst might be ascribed to efficient separation of electron and hole pairs after doping Eu³⁺ into the PbWO₄ lattice.
Agid:
6410146