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Table 1 BET surface areas of the x%-Zr-N-TiO 2 -500 samples with different Zr doping concentration calcined at 500°C

From: Facile synthesis and enhanced visible light photocatalytic activity of N and Zr co-doped TiO2 nanostructures from nanotubular titanic acid precursors

Samples ( x%-Zr-N-TiO2-500) Surface areas (m2g−1)
0.1 122.31
0.3 142.96
0.6 143.04
1.0 166.25
5.0 218.18
10.0 240.18