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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Environ Sci Nano. 2015 Nov 10;3(1):56–66. doi: 10.1039/C5EN00179J

Figure 4.

Figure 4

EPR spectra of the materials to quantify hydroxyl radical (HO) produced by surface-catalyzed decomposition of H2O2. The DMPO-HO spin adduct is characterized by the four line spectrum shown of intensity 1:2:2:1, and the asterisk (*) indicates aminoxyl radical generated by oxidation of the amine functionality.