Dye Removal from Single and Quaternary Systems Using Surface Modified Nanoparticles: Isotherm and Kinetics Studies

In this paper¡ dye removal ability of the surface modified nanoparticle (SMN) (copper ferrite) using surfactant(cethyl trimethyl amonium bromide (CTAB)) from single and quaternary systems was investigated. Acid Blue 92 (AB92)¡ Direct Green 6 (DG6)¡ Direct Red 23 (DR23) and Direct Red 80 (DR80) were used as model compounds. The effect of surfactant concentration¡ adsorbent dosage¡ dye concentration and pH on dye removal was evaluated. The adsorption isotherm and kinetic were also studied. The maximum dye adsorption capacity (Q0) was 178.571 mg/g AB92¡ 49.261 mg/g DG6¡ 39.841 mg/g DR23 and 43.290 mg/g DR80 for SMN. It was found that dye adsorption onto SMN followed Langmuir isotherm. Adsorption kinetic of dyes was found to conform to pseudo-second order kinetics. Prog. Color Colorants Coat. 9 (2016)¡ 85-97 © Institute for Color Science and Technology.