Hcl acid

Methyl green dye, NaCl salt, and HCl acid were purchased from Sigma-Aldrich. JUN-Fe₃O₄, ROS-Fe₃O₄, MAT-Fe₃O₄ and ARM-Fe₃O₄ NP powders were greenly synthesised using an iron salt (FeCl₃·6H₂O) (purchased from Biochem Chemopharma Co, Canada) as the precursor and Artemisia herba-alba (L) (Asteraceae family), Matricaria pubescens (L) (Asteraceae family), Juniperus phoenicia (L) (Cupressaceae family), Rosmarinus officinalis (L) (Lamiaceae family) plants as reducing agents. Fe₃O₄ samples were obtained after 4 months of storage of the synthesized iron oxides in ambient conditions. The freshly synthesized samples were both wüstite and magnetite.^{67 (link)} The chemical structure of MG is presented in Fig. 1.

Evans blue, methyl orange dyes, NaCl salt, HCl acid, and NaOH base are purchased from Sigma-Aldrich. JUN–Fe₃O₄, MAT–Fe₃O₄, ROS–Fe₃O₄ and ARM–Fe₃O₄ nanoparticle powders were greenly synthesised using iron salt (FeCl₃·6H₂O) (purchased from Biochem Chemopharma Co, Canada) as precursor and Artemisia herba-alba (L) (Asteraceae family), Matricaria pubescens (L) (Asteraceae family), Juniperus phoenicea (L) (Cupressaceae family), and Rosmarinus officinalis (L) (Lamiaceae family) plants as reducing agents. Magnetite samples were obtained after 4 months of storage of the synthesized iron oxides under ambient conditions. Characterization of the freshly synthesized iron oxides samples is presented in Ahmouda et al.^{38 (link)}