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The sorption capacity of the triple magnetic composite with respect to the cationic dye increases from 350 mg/g to 1100 mg/g and to the anionic dye from 176 mg/g to 1830 mg/g.
Llorens, "Modeling of the dynamic adsorption of an anionic dye through ion-exchange membrane adsorber," Journal of Membrane Science, vol.
Anionic dye removal from aqueous solutions using modified zeolite: Adsorption kinetics and isotherm studies.
The AO8 dye contains sulfonate group (-S[O.sup.-.sub.3]) in its molecule and, therefore, is an anionic dye in aqueous solution.
The adsorption equilibrium of each anionic dye on CFA could be reached within 1 h at respective optimum pH at 293 K [19].
Sen, "Removal of anionic dye Congo red from aqueous solution by raw pine and acid-treated pine cone powder as adsorbent: equilibrium, thermodynamic, kinetics, mechanism and process design," Water Research, vol.
A Hewlett Packard/Agilent 3D (Palo Alto, California) capillary electrophoresis instrument equipped with a photodiode array detector ([lambda] = 190-600 nm) and a 75 [micro]m inner diameter fused-silica capillary of [L.sub.d] = 50 cm and [L.sub.t] = 58 cm was used for anionic dye separations at 30[degrees]C.
AVarada, The use of an agricultural waste material, Jujuba seeds for the removal of anionic dye (Congo red) from aqueous medium, J.
The adsorption kinetics of Eriochrome Black T (a phenolic dye) and methyl orange (an anionic dye) are shown in Figure 5.
Nasrabadi, "Surface modified magnetic nanoparticles as efficient and green sorbents: synthesis, characterization, and application for the removal of anionic dye," Journal of Magnetism and Magnetic Materials, vol.