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. 2015 Apr 15;20(4):6739–6793. doi: 10.3390/molecules20046739

Figure 19.

Figure 19

(a) Effect of pre-treating TiO2 with phosphate on H2O2 photosynthesis (λ > 320 nm), and (b) 5 mM H2O2 decomposition over 6 wt % rGO/TiO2 (0.5 g/L) in O2-saturated aqueous buffer (pH 3) containing 5 vol % 2-propanol as hole scavenger; (c) Comparison of H2O2 synthesis rates over rGO/TiO2(P) and 1 wt % metalized TiO2(P) samples; (d) Rate constants of H2O2 synthesis (kf) and decomposition (kd) over TiO2(P)-supported composites (reproduced from [258] with permission of the Royal Society of Chemistry).