Fig. 3: Mechanism analysis of Fe/SCN + PI system by theoretical and experimental. | Nature Communications

Fig. 3: Mechanism analysis of Fe/SCN + PI system by theoretical and experimental.

From: Electron transfer mediated activation of periodate by contaminants to generate 1O2 by charge-confined single-atom catalyst

Fig. 3

a 4-CP degradation curves of the Fe/SCN + PI system under different atmospheres (the error bars are all standard deviations calculated from the results of three parallel experiments). b EPR signals of 1O2 in the Fe/SCN + PI system with and without K2Cr2O7, respectively. c, d Photoluminescence of DMA in Fe/SCN + PI (c) and Fe/SCN + PI + 4-CP (d) systems. e The comparison of the energies of the Fe and S dual sites for different modes of co-adsorption of the reactants (Fe: green, S: yellow, N: blue, C: grey, O: red, Cl: orange, H: white, I: purple). f Charge density difference of Fe-N3S1 sites after 4-CP and PI co-adsorption. g Charge density difference diagram for the Fe/SCN (The cyan and light yellow iso-surfaces depict electron depletion and accumulation, respectively). h The electron transfer numbers of the Fe/SCN + PI system.

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