Ag-deposited hollow mesoporous silica microspheres for rapid decolorizing of dye pollutants

Ag-deposited hollow mesoporous silica microspheres for rapid decolorizing of dye pollutants In this paper, we demonstrate a facile electroless plating method for fabricating silver nanoparticles deposited onto hollow mesoporous silica microspheres (Ag-HMSM), which were developed as an novel catalyst for catalytic reduction of rhodamine B (Rh-B). The products were characterized by transmission electron microscopy, scanning electron microscopy image, and energy dispersive spectrometer spectrum. The results reveal the Ag-HMSM possess uniform spherical shape and diameter (about 410 nm) with well-dispersed Ag nanoparticles of about 5 nm. The catalytic activity of Ag-HMSM for the reduction of Rh-B in presence of NaBH4 was investigated by UV–Vis spectrophotometry. The study shows that Rh-B (2.0 × 10−4 M) could be reduced by Ag-HMSM within 12 min at a concentration of 25 ppm or within 2 min at 125 ppm. Ag nanoparticle-deposited HMSM provide new insight on the preparation of a catalyst for rapidly decolorizing dye pollutants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Ag-deposited hollow mesoporous silica microspheres for rapid decolorizing of dye pollutants

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Publisher
Springer Netherlands
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-016-2598-4
Publisher site
See Article on Publisher Site

Abstract

In this paper, we demonstrate a facile electroless plating method for fabricating silver nanoparticles deposited onto hollow mesoporous silica microspheres (Ag-HMSM), which were developed as an novel catalyst for catalytic reduction of rhodamine B (Rh-B). The products were characterized by transmission electron microscopy, scanning electron microscopy image, and energy dispersive spectrometer spectrum. The results reveal the Ag-HMSM possess uniform spherical shape and diameter (about 410 nm) with well-dispersed Ag nanoparticles of about 5 nm. The catalytic activity of Ag-HMSM for the reduction of Rh-B in presence of NaBH4 was investigated by UV–Vis spectrophotometry. The study shows that Rh-B (2.0 × 10−4 M) could be reduced by Ag-HMSM within 12 min at a concentration of 25 ppm or within 2 min at 125 ppm. Ag nanoparticle-deposited HMSM provide new insight on the preparation of a catalyst for rapidly decolorizing dye pollutants.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jul 13, 2016

References

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