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Novel Eu, F-codoped BiVO4 microspheres with diameter of 1-3 mu m were successfully fabricated via a hydrothermal route. The effects of Eu and F doping on the morphology and crystal structure were intensively investigated by some physicochemical characterizations like N-2 physical adsorption, X-ray diffraction (XRD), Scanning electron microscope (SEM), Transmission electron microscopy (TEM), UV-Vis diffuse reflectance (UV-vis DRS), X-ray photoelectron spectroscopy (XPS) and photoelectrochemical measurements. The characterization results revealed that the doping of Eu3+ induced the formation of BiVO4 microspheres and the phase transformation in BiVO4 crystal, from monoclinic to tetragonal phase. The Eu3+ doping slightly shifted the absorption edge of BiVO4 to the direction of UV region. F- doping clearly increased the crystallinity of BiVO4. Moreover, Eu and F co-doping gave rise to the synergetic effects, e.g. the increase in surface area and high separation efficiency of the photo-generated electrons (e(-)) and holes (h(+)). The photocatalytic performance test in degradation of rhodamine B showed that these Eu, F-codoped BiVO4 microspheres displayed much higher photocatalytic performance than that of bare BiVO4, single Eu or F doped BiVO4 samples. (C) 2016 Elsevier B.V. All rights reserved.
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JOURNAL OF ALLOYS AND COMPOUNDS
ISSN: 0925-8388
Year: 2017
Volume: 694
Page: 989-997
3 . 7 7 9
JCR@2017
5 . 8 0 0
JCR@2023
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:306
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 66
SCOPUS Cited Count: 69
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 3
Affiliated Colleges: