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. 2022 Jan 13;9:812086. doi: 10.3389/fchem.2021.812086

FIGURE 2.

FIGURE 2

(A) UV-vis absorption spectra of GO and CDG. (B) FT-IR spectra of GO, rGO, ß-CD and CDG. (C,D) high-resolution C1s XPS profiles of GO and CDG.