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Table 1: Synthesis conditions, crystallinity, and photocatalytic activity in terms of the first-order kinetic constant for RO16 decolorization of powder photocatalysts.

Name pH Temp. (${}^{°}\text{C}$) XRD Data $k_{\text{RO}}$ (h-1) Anatase (%) $D_{\text{anat}}$ (nm) ${S_g}^{†}$ (m2g-1) P-TiO2-1 1.5 500 100 14 110 0.22 P-TiO2-2 1.5 600 89 42 37 0.32 P-TiO2-3 6.5 500 100 12 128 0.38 P-TiO2-4 6.5 600 100 24 64 1.09

†Estimated assuming nonporous spherical particles with a density corresponding to bulk anatase.