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Author Wang, Mengyan ♦ Xi, Xin ♦ Gong, Cairong ♦ Zhang, Xiao Li ♦ Fan, Guoliang
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ NANOSCIENCE AND NANOTECHNOLOGY ♦ BISMUTH NITRATES ♦ CALCINATION ♦ CRYSTAL GROWTH ♦ CRYSTALS ♦ MATRIX MATERIALS ♦ NANOFIBERS ♦ NANOMATERIALS ♦ NITROGEN OXIDES ♦ PHOTOCATALYSIS ♦ POROUS MATERIALS ♦ POWDERS ♦ PVP ♦ SCANNING ELECTRON MICROSCOPY ♦ SOL-GEL PROCESS ♦ TRANSMISSION ELECTRON MICROSCOPY ♦ VANADATES ♦ VISCOSITY ♦ VISIBLE RADIATION ♦ X-RAY DIFFRACTION
Abstract Highlights: • BiVO{sub 4} nanofibers were successfully fabricated by electrospinning method. • PVP was used to adjust the viscosity and increase spinnability of the electrospinning sol. • BiVO{sub 4} nanofibers were used for the degradation of MB. • Compared to the submicron sized BiVO4, BiVO{sub 4} nanofibers show superior photocatalytic activity. - Abstract: Witnessed by X-ray powder diffraction (XRD), Raman, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) studies, BiVO{sub 4} nanofibers and porous nanostructures were successfully fabricated by electrospinning method using NH{sub 4}VO{sub 3} and Bi(NO{sub 3}){sub 3} as starting materials. Polyvinylpyrrolidinone (PVP) was used to tune the viscosity and spinnability of the electrospinning sol. The slow decomposition and combustion of PVP matrix prevented rapid crystal growth of BiVO{sub 4} nanostructures leading to considerably small crystallite size (approximately 19.1–28.3 nm) with less surface defects after two hours calcination at varying temperatures. This paid great tributes to the superior visible light photocatalytic activity when compared to the submicron sized BiVO{sub 4} prepared in the absence of PVP.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-02-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 74


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