Abstract
Novel Eu, F-codoped BiVO4 microspheres with diameter of 1–3 μm 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 N2 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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
