The fabrication of nanophotocatalytic film with aqueous titania nanofluid by electrophoretic deposition

Tun Ping Teng, Tun Chien Teng, Chien Chih Chen

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

This study employs a direct-synthesis method to produce titania (TiO 2)/water nanofluid, which is a working fluid involved in the electrophoretic deposition (EPD) of nanophotocatalytic films. In general, using organic solvents and water as the bulk liquids in EPD produces environmental pollution and defective films due to the electrolysis of water. To mitigate water electrolysis, the fabrication method proposed in this study adds an anionic dispersant to the TiO2/water nanofluid. The anionic dispersant changes the surface charge of TiO2 nanoparticles to facilitate their deposition on the anode. For low voltage EPD processes, this method effectively improves defective nanophotocatalytic films. These defects are caused by bubbles from the water electrolysis, as the volume of oxygen produced at the anode amounts to half of the hydrogen produced at the cathode. The objective of this study is to propose empirical equations describing the relationship between film thickness and electric parameters.

原文英語
頁(從 - 到)105-112
頁數8
期刊Journal of Nano Research
10
DOIs
出版狀態已發佈 - 2010 四月 7

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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