Keggin type of cesium phosphomolybdate synthesized via solid-state reaction as an efficient catalyst for the photodegradation of a dye pollutant in aqueous phase

Keggin type of cesium phosphomolybdate synthesized via solid-state reaction as an efficient... Article history: Here the potential use of cesium phosphomolybdate salt as a photocatalyst for the photodegradation of Received 24 October 2015 dye pollutants was studied. Polyoxometalates salts, having Keggin structure with large cations like Cs , are Received in revised form 25 January 2016 porous materials. Cs PMo O salt was prepared by solid-state method with a much higher surface area 3 12 40 Accepted 27 January 2016 than the original Keggin-type heteropolyacids (H PMo O ). The morphological and structural studies 3 12 40 Available online 4 February 2016 of synthesized nanoclusters were carried out using field emission scanning electron microscopy and transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, energy Keywords: dispersive analysis by X-ray and Brunauer–Emmett–Teller. Cesium phosphomolybdate nanoclusters UV–vis diffuse reflectance spectroscopy determined the absorption edge and band gap energies of the Photocatalysis prepared salt as a direct semiconductor. The optical energy gap was calculated equal to 2.35 eV. The Photocatalytic degradation cesium phosphomolybdate nanocluster exhibited high photodegradation ability for basic red 46 (BR46) Polyoxometalate under the simulated sunlight. The trapping experiments indicated that the photogenerated hydroxyl radicals and holes were the main responsible for the BR46 photodegradation. The presence of H O sig- http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Molecular Catalysis A: Chemical Elsevier

Keggin type of cesium phosphomolybdate synthesized via solid-state reaction as an efficient catalyst for the photodegradation of a dye pollutant in aqueous phase

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
1381-1169
eISSN
1873-314X
D.O.I.
10.1016/j.molcata.2016.01.031
Publisher site
See Article on Publisher Site

Abstract

Article history: Here the potential use of cesium phosphomolybdate salt as a photocatalyst for the photodegradation of Received 24 October 2015 dye pollutants was studied. Polyoxometalates salts, having Keggin structure with large cations like Cs , are Received in revised form 25 January 2016 porous materials. Cs PMo O salt was prepared by solid-state method with a much higher surface area 3 12 40 Accepted 27 January 2016 than the original Keggin-type heteropolyacids (H PMo O ). The morphological and structural studies 3 12 40 Available online 4 February 2016 of synthesized nanoclusters were carried out using field emission scanning electron microscopy and transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, energy Keywords: dispersive analysis by X-ray and Brunauer–Emmett–Teller. Cesium phosphomolybdate nanoclusters UV–vis diffuse reflectance spectroscopy determined the absorption edge and band gap energies of the Photocatalysis prepared salt as a direct semiconductor. The optical energy gap was calculated equal to 2.35 eV. The Photocatalytic degradation cesium phosphomolybdate nanocluster exhibited high photodegradation ability for basic red 46 (BR46) Polyoxometalate under the simulated sunlight. The trapping experiments indicated that the photogenerated hydroxyl radicals and holes were the main responsible for the BR46 photodegradation. The presence of H O sig-

Journal

Journal of Molecular Catalysis A: ChemicalElsevier

Published: May 1, 2016

References

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    Zang, H.-Y.; Lan, Y.-Q.; Yang, G.-S.; Wang, X.-L.; Shao, K.-Z.; Xu, G.-J.; Su, Z.-M.
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    Kim, S.; Park, H.; Choi, W.

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