Research Article
Enhanced Photocatalytic Activity of W-Doped and W-La-Codoped TiO2 Nanomaterials under Simulated Sunlight
Figure 2
The XPS core level binding energy in the 4% La/W/TiO2 nanomaterials. (a) An overview XPS spectrum of the sample; (b) Ti2p spectrum; (c) W4f spectrum; and (d) La5/2d spectrum.
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