Synthesis of Pb x Cr1−x MoO4 oxides using microwave process and their photocatalytic activity under visible light irradiation

Synthesis of Pb x Cr1−x MoO4 oxides using microwave process and their photocatalytic activity... Lead molybdate (PbMoO4) and chromium-substituted lead molybdate (PbCr1−x Mo x O4) were successfully synthesized using a microwave-assisted method and characterized by XRD, Raman spectroscopy, SEM, PL, and DRS. We also investigated the photocatalytic activity of these materials for the decomposition of rhodamine B under UV and visible light irradiation. The XRD and Raman results revealed the successful synthesis of 51–59 nm, well-crystallized PbMoO4 crystals with the microwave-assisted hydrothermal method. The DRS spectra of PbMo1−x Cr x O4 catalysts showed new intensive absorption bands in the visible light region. The PbMoO4 catalysts showed the lowest photocatalytic activity and the activity was increased with an increase of chromium substitution content under visible light irradiation. The PL peaks appeared at about 540–580 nm for all catalysts and the excitonic PL signal was proportional to the photocatalytic activity for the decomposition of rhodamine B. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis of Pb x Cr1−x MoO4 oxides using microwave process and their photocatalytic activity under visible light irradiation

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Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2286-9
Publisher site
See Article on Publisher Site

Abstract

Lead molybdate (PbMoO4) and chromium-substituted lead molybdate (PbCr1−x Mo x O4) were successfully synthesized using a microwave-assisted method and characterized by XRD, Raman spectroscopy, SEM, PL, and DRS. We also investigated the photocatalytic activity of these materials for the decomposition of rhodamine B under UV and visible light irradiation. The XRD and Raman results revealed the successful synthesis of 51–59 nm, well-crystallized PbMoO4 crystals with the microwave-assisted hydrothermal method. The DRS spectra of PbMo1−x Cr x O4 catalysts showed new intensive absorption bands in the visible light region. The PbMoO4 catalysts showed the lowest photocatalytic activity and the activity was increased with an increase of chromium substitution content under visible light irradiation. The PL peaks appeared at about 540–580 nm for all catalysts and the excitonic PL signal was proportional to the photocatalytic activity for the decomposition of rhodamine B.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Sep 26, 2015

References

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