Effect of SiO2 Particle Size on Optical Properties of TiO2-SiO2 Nanocomposite Thin Films

Je Hun Kim; Hyun Goo Choi; Ting Zhang; Chul Han Kwon; Young Ho Kim; Dong Heon Kang

doi:10.4028/www.scientific.net/AMR.684.67

Paper Titles

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Progress on Chitosan Nanoparticles as Drug Delivery Carriers
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Preparation and Characterization of Folate-Decorated Chitosan Microspheres as a Sustained-Release Drugs Carrier
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Effect of Thermal Treatment on the Texture and Structure of Sol-Gel Derived Carbon Nanotube/Silica Composites
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Effect of SiO₂ Particle Size on Optical Properties of TiO₂-SiO₂ Nanocomposite Thin Films
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Processing, Thermal Behavior and Tensile Properties of PLA/Thermoplastic Starch/Montmorillonite Nanocomposites
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Electerochemical Study of Speek/Cloisite 15A^®/TAP Membrane at Moderate Temperature for DMFC Application
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High Performance Transparent Conducting Sb-Doped SnO₂ Films Fabricated by Spray Pyrolysis
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Modified Nafion Membranes by Catalytic Materials for Direct Methanol Fuel Cells Applications
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 684Effect of SiO2 Particle Size on Optical Properties...

Effect of SiO₂ Particle Size on Optical Properties of TiO₂-SiO₂ Nanocomposite Thin Films

Abstract:

TiO₂-SiO₂ thin film system is known to be very attractive to use for photocatalytic and display applications. In this study, TiO₂-SiO₂ nano-composite solutions were prepared by adding colloidal solutions consisted of different SiO₂ nano-particle sizes (7-50 nm) into TiO₂ powder-dispersed solutions. TiO₂-SiO₂ thin films on glass substrates were fabricated by the dip-coating technique and their crystal structure, surface morphology and photocatalytic properties were investigated as a function of SiO₂ particle size. While the SiO₂ particle size had little influence on the crystal structure of thin films, the photocatalytic activity and anti-reflectance (anti-glare) characteristics were found to be dependent on the SiO₂ particle size. This result could be explained in terms of surface characteristics and the order of degradation of methylene blue under UV light irradiation.