Nano Archive

Self-cleaning performance of polycarbonate surfaces coated with titania nanoparticles

Lam, Sai Wei and Soetanto, Arman and Amal, Rose (2009) Self-cleaning performance of polycarbonate surfaces coated with titania nanoparticles. Journal of Nanoparticle Research, 11 (8). pp. 1971-1979.

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The effect of NaOH-etching and UVC-irradiation on the mechanical stability of TiO2 nanoparticles on polycarbonate (PC) slides was investigated. TiO2 nanoparticles were found to adhere more strongly on UVC-treated PC than NaOH-etched PC, caused by the increase in the hydroxyl and carboxyl groups on the UVC-treated PC. Although a mechanically strong TiO2 film was developed on UVC-treated PC, the sheet-like wetting effect and antifogging behaviour were only observed with the film coated on NaOH-etched PC. It was also detected that the film coated onto NaOH-etched PC exhibited a more superior performance in degrading methylene blue than that in the UVC-treated PC system. Evidences from the FTIR and AFM analyses indicated that the performance of TiO2 films was strongly depended on the leaching rate of PEG.

Item Type:Article
Uncontrolled Keywords:TiO2 - NaOH-etching - Photo-Fries reaction - Polycarbonate - Functional nanomaterial
Subjects:Physical Science > Nanophysics
Material Science > Nanofabrication processes and tools
Engineering > Nanotechnology applications in civil engineering
Technology > Manufacturing processes for nanotechnology
ID Code:7971
Deposited By:IoN
Deposited On:05 Jan 2010 15:46
Last Modified:05 Jan 2010 15:46

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