fig5
Figure 5. (A) Schematic illustration of the conversion of non-fluorescent coumarins to fluorescent 7-hydroxycoumarins by OH*. This figure is quoted with permission from Chen et al.[91]. (B) The reaction between ROS and ABTS, and the color change of the solution after the Fenton reaction. This figure is quoted with permission from Luo et al.[25]. (C) The adsorption energy of H2O2 and ROS on the surface of Fe-N-C and TaO2-OH. This figure is quoted with permission from Xie et al.[78].
