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

Tun-Ping Teng, Tun-Chien Teng, Chien Chih Chen

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)105-112
Number of pages8
JournalJournal of Nano Research
Volume10
DOIs
Publication statusPublished - 2010 Apr 7

Fingerprint

titanium
Titanium
Fabrication
fabrication
Water
electrolysis
Electrolysis
water
Anodes
anodes
working fluids
Surface charge
pollution
Organic solvents
low voltage
Film thickness
titanium dioxide
Hydrogen
Pollution
Cathodes

Keywords

  • Electrolysis
  • Electrophoretic deposition
  • Nanofluid

ASJC Scopus subject areas

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

Cite this

The fabrication of nanophotocatalytic film with aqueous titania nanofluid by electrophoretic deposition. / Teng, Tun-Ping; Teng, Tun-Chien; Chen, Chien Chih.

In: Journal of Nano Research, Vol. 10, 07.04.2010, p. 105-112.

Research output: Contribution to journalArticle

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