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Title: Large-scale controllable synthesis of dumbbell-like BiVO{sub 4} photocatalysts with enhanced visible-light photocatalytic activity

Abstract

The controllable synthesis of novel dumbbell-like BiVO{sub 4} hierarchical nanostructures has been successfully obtained via a simple hydrothermal route. The as-synthesized products were studied by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy and UV-vis absorption spectroscopy. The results showed that the nucleation and growth of the nanodumbbells were governed by an oriented aggregation growth mechanism. It is noteworthy that the concentration of poly(vinyl pyrrolidone) and the volume ratio of H{sub 2}O to CH{sub 3}COOH were crucial to the growth of the final nanoarchitectures. Control experiments were also carried out to investigate the factors which impact on the morphology of the products. Furthermore, the as-prepared BiVO{sub 4} hierarchical nanostructures demonstrated the superior visible-light-driven photocatalytic efficiency, which is helpful for the separation and recycle considering their promising applications in harmful pollutants disposal. - Graphical Abstract: The controllable synthesis of novel dumbbell-like BiVO{sub 4} hierarchical nanostructures has been successfully obtained via a simple hydrothermal route; the as-prepared BiVO{sub 4} hierarchical nanostructures demonstrated the superior visible-light-driven photocatalytic efficiency. Highlights: Black-Right-Pointing-Pointer Dumbbell-like BiVO{sub 4} structures were synthesized and characterized for the first time. Black-Right-Pointing-Pointer The volume ratios of H{sub 2}O to CH{sub 3}COOH were crucial to the final morphologies. Black-Right-Pointing-Pointer Their photocatalytic activitymore » was up to 90% under visible-light irradiation. Black-Right-Pointing-Pointer Dumbbell-like BiVO{sub 4} structures may utilize the pollutant disposal.« less

Authors:
 [1]; ; ; ;  [1]
  1. Department of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000 (China)
Publication Date:
OSTI Identifier:
21612920
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 186; Other Information: DOI: 10.1016/j.jssc.2011.12.003; PII: S0022-4596(11)00673-6; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTROSCOPY; ACETIC ACID; CONTROL; EFFICIENCY; IRRADIATION; MORPHOLOGY; NANOSTRUCTURES; PHOTOCATALYSIS; POLLUTANTS; PYRROLIDONES; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; VISIBLE RADIATION; X-RAY DIFFRACTION; AMIDES; AZOLES; CARBOXYLIC ACIDS; CATALYSIS; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; HETEROCYCLIC COMPOUNDS; LACTAMS; MICROSCOPY; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PYRROLES; RADIATIONS; SCATTERING; SPECTROSCOPY

Citation Formats

Yang, Lu, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, Luo Yongsong, E-mail: ysluo@mail.ipc.ac.cn, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, Dezhi, Kong, Deyang, Zhang, Yonglei, Jia, and Xinwei, Zhang. Large-scale controllable synthesis of dumbbell-like BiVO{sub 4} photocatalysts with enhanced visible-light photocatalytic activity. United States: N. p., 2012. Web.
Yang, Lu, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, Luo Yongsong, E-mail: ysluo@mail.ipc.ac.cn, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, Dezhi, Kong, Deyang, Zhang, Yonglei, Jia, & Xinwei, Zhang. Large-scale controllable synthesis of dumbbell-like BiVO{sub 4} photocatalysts with enhanced visible-light photocatalytic activity. United States.
Yang, Lu, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, Luo Yongsong, E-mail: ysluo@mail.ipc.ac.cn, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, Dezhi, Kong, Deyang, Zhang, Yonglei, Jia, and Xinwei, Zhang. Wed . "Large-scale controllable synthesis of dumbbell-like BiVO{sub 4} photocatalysts with enhanced visible-light photocatalytic activity". United States.
@article{osti_21612920,
title = {Large-scale controllable synthesis of dumbbell-like BiVO{sub 4} photocatalysts with enhanced visible-light photocatalytic activity},
author = {Yang, Lu and Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 and Luo Yongsong, E-mail: ysluo@mail.ipc.ac.cn and Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 and Dezhi, Kong and Deyang, Zhang and Yonglei, Jia and Xinwei, Zhang},
abstractNote = {The controllable synthesis of novel dumbbell-like BiVO{sub 4} hierarchical nanostructures has been successfully obtained via a simple hydrothermal route. The as-synthesized products were studied by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy and UV-vis absorption spectroscopy. The results showed that the nucleation and growth of the nanodumbbells were governed by an oriented aggregation growth mechanism. It is noteworthy that the concentration of poly(vinyl pyrrolidone) and the volume ratio of H{sub 2}O to CH{sub 3}COOH were crucial to the growth of the final nanoarchitectures. Control experiments were also carried out to investigate the factors which impact on the morphology of the products. Furthermore, the as-prepared BiVO{sub 4} hierarchical nanostructures demonstrated the superior visible-light-driven photocatalytic efficiency, which is helpful for the separation and recycle considering their promising applications in harmful pollutants disposal. - Graphical Abstract: The controllable synthesis of novel dumbbell-like BiVO{sub 4} hierarchical nanostructures has been successfully obtained via a simple hydrothermal route; the as-prepared BiVO{sub 4} hierarchical nanostructures demonstrated the superior visible-light-driven photocatalytic efficiency. Highlights: Black-Right-Pointing-Pointer Dumbbell-like BiVO{sub 4} structures were synthesized and characterized for the first time. Black-Right-Pointing-Pointer The volume ratios of H{sub 2}O to CH{sub 3}COOH were crucial to the final morphologies. Black-Right-Pointing-Pointer Their photocatalytic activity was up to 90% under visible-light irradiation. Black-Right-Pointing-Pointer Dumbbell-like BiVO{sub 4} structures may utilize the pollutant disposal.},
doi = {},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 186,
place = {United States},
year = {2012},
month = {2}
}