Figure 5 | Scientific Reports

Figure 5

From: Selective and Recyclable Congo Red Dye Adsorption by Spherical Fe3O4 Nanoparticles Functionalized with 1,2,4,5-Benzenetetracarboxylic Acid

Figure 5

UV-Vis spectra of (A) C.R dye, (B) C.V dye, (C) M.O dye aqueous solutions before and after shaking with Fe3O4@BTCA, (D) Bar diagram for percentage removal of C.R, C.V, and M.O dyes (percentage color removal = 100 × (Ci-Cf.)/Ci, Ci and Cf are concentrations of dyes before and after shaking with Fe3O4@BTCA, respectively).

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