[Retracted] Synthesis and Optimization of Cr (VI) Removal from Aqueous Solution by Activated Carbon with Magnetic Fe<sub>3</sub>O<sub>4</sub>Nanoparticles by Response Surface Methodology

<div>SEM micrograph of the activated carbon.</div>

Adsorption Science & Technology

fig5

Figure 5

Figure 5: [Retracted] Synthesis and Optimization of Cr (VI) Removal from Aqueous Solution by Activated Carbon with Magnetic Fe<sub>3</sub>O<sub>4</sub>Nanoparticles by Response Surface Methodology 

Figure 5 | [Retracted] Synthesis and Optimization of Cr (VI) Removal from Aqueous Solution by Activated Carbon with Magnetic Fe3O4Nanoparticles by Response Surface Methodology 