Photocatalytically Active Nanocomposite Films Consisting of TiO<SUB>2</SUB> Particles and Zn-Ni Alloy Electrodeposited on Steel Plates
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概要
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Zn-Ni-TiO<SUB>2</SUB> composite films were successfully formed on steel plates by electroplating from a ZnSO<SUB>4</SUB> NiSO<SUB>4</SUB> mixed bath containing TiO<SUB>2</SUB> particles. The uptake of TiO<SUB>2</SUB> particles into the film (W) was found to increase with the addition of NH<SUB>4</SUB>NO<SUB>3</SUB>. Also, the value of W increased monotonically with increasing concentration of TiO<SUB>2</SUB> in the bath (X, 0≤X≤200g L<SUB>-1</SUB>). The photocatalytic activity for the oxidation of CH<SUB>3</SUB>CHO reached a maximum at X=150gl<SUP>-1</SUP> Electron probe microanalysis pointed out an intimate correlation between the photocatalytic activity and the depth distribution of the TiO<SUB>2</SUB> particles. X-ray diffraction measurements indicated that the Zn-Ni metal phase in an optimum composition has γ phase with an excellent corrosion resistance.
- Japan Society of Colour Materialの論文