Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Effect of 11-Mercaptoundecylphosphoric-acid Layer Formation on Gold Surfaces Interacting with Titanium Dioxide Surfaces

  • Park, Jin-Won (Department of Chemical Engineering, College of Engineering, Seoul National University of Science and Technology)
  • Received : 2010.06.09
  • Accepted : 2010.08.20
  • Published : 2010.10.20
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Abstract

We studied effects of the 11-Mercaptoundecylphosphoric-acid layer formation on gold surfaces that have the interactions with the titanium dioxide surface for design of gold- titanium dioxide distribution. The atomic force microscope (AFM) was used to measure forces between the surfaces as a function of the salt concentration and pH value. The forces were analyzed with the DLVO (Derjaguin-Landau-Verwey-Overbeek) theory, to evaluate the potential and charge density of the surfaces quantitatively for each salt concentration and each pH value. The interpretation for the evaluation was performed with the law of mass action and the ionizable groups on the surface.

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