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. 2019 May 15;10(5):326. doi: 10.3390/mi10050326

Figure 3.

Figure 3

(a) Synthesis procedure for hydrogenated TiO2 nanotubes CoOx photocatalyst. (b) Photocatalytic CO and CH4 yield employing the AB-H-CoOx sample using photocatalytic and photothermal catalytic approaches (taken with permission from [53]).