Table 2.

Structural parameters of TiO₂ (P25) and TiO₂-based catalysts according to BET and XRD.

	catalyst
	TiO2 (P25)	0.2% Pt/TiO2	0.7% Pt/TiO2	1% Pt/TiO2	1.6% Pt/TiO2	0.2% Au/TiO2	0.2% Ni/TiO2	0.2% Pd/TiO2
BET surface area (m2 g−1)	44.12	53.14	51.07	50.72	55.62	49.46	51.11	50.91
anatase particle size (nm)	20.03	22.34	23.05	21.21	22.59	21.38	21.43	22.40
rutile particle size (nm)	36.37	35.20	38.19	36.72	33.23	36.72	33.96	36.72
% w/w anatase	83.01	81.41	81.33	82.40	77.50	79.65	80.80	80.61