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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

* ,
,
 and
Department of Chemistry, National Cheng Kung University, No. 1, University Road, Tainan 70101, Taiwan
* Author to whom correspondence should be addressed.
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 (CC BY 3.0).

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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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