Table 2.

Absolute second-order rate constants and calculated R squared value for GO and rGO with HO˙ in the pH 5.4 photo-Fenton system described in Fig. 4a

	$k_{{\text{HO}}^{•},\text{GO}}\left(\times {10}^4\text{mg}-{\text{C}}^{-1}{\text{Ls}}^{-1}\right)$	R squared
GO	6.24 ± 0.13	0.987
1D-rGO	8.59 ± 0.32	0.966
2D-rGO	7.43 ± 0.48	0.894
4D-rGO	6.98 ± 0.39	0.927
7D-rGO	5.89 ± 0.31	0.917