Figure 2 | Scientific Reports

Figure 2

From: Facile and Scalable Preparation of Graphene Oxide-Based Magnetic Hybrids for Fast and Highly Efficient Removal of Organic Dyes

Figure 2

Raman spectra of lyophilized

(A) GO and (B) hybrid composites. The intensity ratios of D/G and 2D/G in the Raman spectra shown in (B) were plotted in (C) and (D), respectively. [Note: Hybrid composites (a, b, c) were prepared with the Fe3O4 nanoparticles seen in Fig. 1B, C’, D’, respectively, using 5:4 by mass GO/Fe3O4. Hybrid composite (d) was prepared with purchased Fe3O4 nanoparticles using 5:4 by mass GO/Fe3O4].

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