Synthesis and visible light photocatalytic activity of Ag spot-coated TiO2–60wt% SrO composite powders

Synthesis and visible light photocatalytic activity of Ag spot-coated TiO2–60wt% SrO composite... Nano-sized TiO2–60 wt% SrO composite powders were synthesized from titanium isopropoxide and Sr(OH)2·8H2O by use of a sol–gel method. Ag spot-coated TiO2–60 wt% SrO composite powders containing 3, 5, or 7 wt% Ag were synthesized by hydrothermal-assisted attachment, by use of Ag hydrosol in a high-pressure bomb at 250 °C and 450 psi. Nano-sized Ag particles approximately 5–25 nm in diameter adhered to the TiO2–60 wt% SrO2 composite powders. The photocatalytic activity of Ag spot-coated TiO2–SrO powders in the degradation of phenol showed that all were highly active when irradiated with UV light. TiO2–60 wt% SrO composite powder spot-coated with 5 wt% Ag was more photocatalytically active under visible light than TiO2–SrO composite powder. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis and visible light photocatalytic activity of Ag spot-coated TiO2–60wt% SrO composite powders

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Publisher
Springer Netherlands
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1651-4
Publisher site
See Article on Publisher Site

Abstract

Nano-sized TiO2–60 wt% SrO composite powders were synthesized from titanium isopropoxide and Sr(OH)2·8H2O by use of a sol–gel method. Ag spot-coated TiO2–60 wt% SrO composite powders containing 3, 5, or 7 wt% Ag were synthesized by hydrothermal-assisted attachment, by use of Ag hydrosol in a high-pressure bomb at 250 °C and 450 psi. Nano-sized Ag particles approximately 5–25 nm in diameter adhered to the TiO2–60 wt% SrO2 composite powders. The photocatalytic activity of Ag spot-coated TiO2–SrO powders in the degradation of phenol showed that all were highly active when irradiated with UV light. TiO2–60 wt% SrO composite powder spot-coated with 5 wt% Ag was more photocatalytically active under visible light than TiO2–SrO composite powder.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: May 21, 2014

References

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