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. 2016 Oct 6;6:34765. doi: 10.1038/srep34765

Figure 1.

Figure 1

(a) UV–Vis absorption spectra of pure TiO2 and B-TiO2−x samples with various B-doping content. Inset: a photo comparing pure TiO2 and various B-TiO2−x samples. (b) The photocatalytic activity of B-TiO2−x and P25 in water splitting hydrogen production under simulated solar-light irradiation. (c) Cycling measurements of hydrogen gas generation on 10% B-TiO2−x, which were conducted within consecutive 42 hours of overall solar irradiation time.