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. 2019 Feb 12;9(2):250. doi: 10.3390/nano9020250

Table 2.

The first-order apparent rate constant (kapp) values for the photocatalytic degradation of MB.

4 mg·L−1 4 mg·L−1 7 mg·L−1 7 mg·L−1 9 mg·L−1 9 mg·L−1
Kapp (min−1) R2 Kapp (min−1) R2 Kapp (min−1) R2
PES 0.001 0.976 0.0005 0.923 0.0011 0.685
UV-irr. PES 0.0003 0.970 0.00204 0.998 0.0003 0.930
TiO2/PES −0.0048 0.936 0.0035 0.75 0.0016 0.937
UV-irr. TiO2/PES 0.0102 0.777 0.01073 0.999 0.0147 0.999