International Journal of Photoenergy / 2012 / Article / Tab 1

Research Article

Enhancement of Visible-Light Photocatalytic Activity of Mesoporous Au-TiO2 Nanocomposites by Surface Plasmon Resonance

Table 1

Effects of on physical properties of the Au-TiO2 composite powders.

Sample ( )Phase content aCrystalline size/nm b m2/g c cm3/g cPorosity (%) cAverage pore size/nm

0Anatase6.7235.50.5769.08.1
0.003Anatase6.7208.40.4664.27.5
0.006Anatase6.5211.70.3457.07.1
0.015Anatase6.5205.00.4362.65.7
0.030Anatase6.3215.90.3859.75.8
0.060Anatase6.0212.40.3457.05.4

a: Average crystalline size of TiO2 was determined on the basis of the broadening of the anatase diffraction peak using the Scherrer equation.
b: The BET surface area was determined by multipoint BET method using the adsorption data in the relative pressure ( ) range of 0.05–0.2.
c: Pore volume, porosity, and average pore size were determined by nitrogen adsorption volume at the relative pressure of 0.994.

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