Visible Light Photocatalytic Properties of Ta and N Codoped SrTiO₃ Nanoparticles

Table 1

Specific surface area, particle size, and Ti/Sr and Ta/Ti atomic ratios determined by EDX analysis of SrTi_1-xTa_xO_3-yN_y.

𝑥 in the initial solution	Particle size* (nm)	S.S.A (m^2/g)	EDX Analysis
			Ti/Sr	Ta/Ti
𝑥=0	19.6	51.0	0.89	0
𝑥=0.02	19.6	55.0	0.90	0.016
𝑥=0.05	18.1	55.6	0.92	0.049
𝑥=0.10	17.2	68.9	0.90	0.102

*determined by Scherrer’s method.