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. 2020 Dec 10;24(1):101920. doi: 10.1016/j.isci.2020.101920

Figure 1.

Figure 1

Fabricating mechanism of Zn-hydrotalcite/Phe/GO composites with sandwich structure

(A) XRD patterns of GO and GO composites with filter paper. The 2θ range for the (001) peak of the GO is highlighted in the dashed box.

(B) AFM images of GO nanosheet and GO composites samples. Scale bars are all 100 nm.

(C) XRD patterns of the composites Zn(NO3)2/Phe/GO at concentrations of Zn(NO3)2 = 50 g/L, 100 g/L, 150 g/L, 200 g/L, 300 g/L, 400 g/L, 450 g/L and 500 g/L (1–8), respectively. Insert: The X axis expansions in the 6–15° 2θ diffraction angle regions in the dashed box (5–8).

(D) TEM images of the composites Zn(NO3)2/Phe/GO at concentrations of Zn(NO3)2 = 200 g/L, 400 g/L, and 500 g/L from left to right, respectively.

(E) Schematic showing the formation of sandwich composites of Zn-hydrotalcite/Phe/GO.