Photocatalytic activity of one-dimensional Ag2V4O11 nanowires in the degradation of bisphenola under visible-light irradiation

Photocatalytic activity of one-dimensional Ag2V4O11 nanowires in the degradation of bisphenola... In this study, one-dimensional Ag2V4O11 nanowires were prepared by a facile hydrothermal process and developed as a novel visible-light-sensitive photocatalyst. Ag2V4O11 nanowires were single-crystalline with large specific surface area and good visible-light absorption performance. The degradation of bisphenol A (BPA) by Ag2V4O11 was systematically investigated under visible-light irradiation, and the influence parameters were studied. Experimental results indicated that Ag2V4O11 nanowires had excellent photocatalytic activities and the degradation efficiency of BPA could reach 100 % within 150 min with 1 mg/mL Ag2V4O11. Intermediates of the degradation reaction were detected by high performance liquid chromatography coupled with mass spectrometry, and a possible degradation pathway was proposed. In addition, after eight cycles for the photodegradation of BPA, Ag2V4O11 did not exhibit significant loss of photocatalytic activity, confirming its stability and long-time reusability. The photocatalytic mechanism was studied by active species trapping experiments, revealing that the holes (h+) and hydroxyl radicals ( $${\cdot}{\text{OH}}$$ · OH ) played key roles in RhB degradation. This study provides a potential effective Ag2V4O11 nanowire photocatalyst for water purification and other applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Photocatalytic activity of one-dimensional Ag2V4O11 nanowires in the degradation of bisphenola under visible-light irradiation

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Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1481-9
Publisher site
See Article on Publisher Site

Abstract

In this study, one-dimensional Ag2V4O11 nanowires were prepared by a facile hydrothermal process and developed as a novel visible-light-sensitive photocatalyst. Ag2V4O11 nanowires were single-crystalline with large specific surface area and good visible-light absorption performance. The degradation of bisphenol A (BPA) by Ag2V4O11 was systematically investigated under visible-light irradiation, and the influence parameters were studied. Experimental results indicated that Ag2V4O11 nanowires had excellent photocatalytic activities and the degradation efficiency of BPA could reach 100 % within 150 min with 1 mg/mL Ag2V4O11. Intermediates of the degradation reaction were detected by high performance liquid chromatography coupled with mass spectrometry, and a possible degradation pathway was proposed. In addition, after eight cycles for the photodegradation of BPA, Ag2V4O11 did not exhibit significant loss of photocatalytic activity, confirming its stability and long-time reusability. The photocatalytic mechanism was studied by active species trapping experiments, revealing that the holes (h+) and hydroxyl radicals ( $${\cdot}{\text{OH}}$$ · OH ) played key roles in RhB degradation. This study provides a potential effective Ag2V4O11 nanowire photocatalyst for water purification and other applications.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Nov 29, 2013

References

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