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Molecular Momentum Transport at Fluid-Solid Interfaces in MEMS/NEMS: A Review
Int. J. Mol. Sci. 2009, 10(11), 4707-4718; doi:10.3390/ijms10114707
Article

Laser-Induced Silver Nanoparticles on Titanium Oxide for Photocatalytic Degradation of Methylene Blue

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Received: 28 August 2009 / Revised: 22 October 2009 / Accepted: 27 October 2009 / Published: 29 October 2009
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract

Silver nanoparticles doped on titanium oxide (TiO2) were produced by laser-liquid interaction of silver nitrate (AgNO3) in isopropanol. Characteristics of Ag/TiO2 (Ag doped TiO2) nanoparticles produced by the methods presented in this article were investigated by XRD, TEM, SEM, EDX, and UV-Vis. From the UV-Vis measurements, the absorption of visible light of the Ag/TiO2 photocatalysts was improved (additional absorption at longer wavelength in visible light region) obviously. The photocatalytic efficiency of Ag/TiO2 was tested by the degradation of methylene blue (MB) in aqueous solution. A maximum of 82.3% MB degradation is achieved by 2.0 wt% Ag/TiO2 photocatalyst under 2 h illumination with a halogen lamp.
Keywords: titanium oxide; photocatalysis; silver nanoparticles; methylene blue; laser titanium oxide; photocatalysis; silver nanoparticles; methylene blue; laser
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Whang, T.-J.; Huang, H.-Y.; Hsieh, M.-T.; Chen, J.-J. Laser-Induced Silver Nanoparticles on Titanium Oxide for Photocatalytic Degradation of Methylene Blue. Int. J. Mol. Sci. 2009, 10, 4707-4718.

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