Figure 6 | Scientific Reports

Figure 6

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

Figure 6

(A) Experimental maximum adsorption isotherm of C.R by Fe3O4@BTCA, (B) Langmuir adsorption isotherm, (C) Freundlich adsorption isotherm of C.R dye on Fe3O4@BTCA, (D) Experimental adsorption capacity with time, (E) Pseudo-first-order, (F) Pseudo-second-order kinetic plot, (G) UV-Vis spectra of C.R dye with increasing time, (H) Kinetic plot of C.R dye, (I) Percentage color removal of C.R dye with time.

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