Mechanism of acridine orange removal from water by low-charge swelling clays

摘要: Abstract Swelling clays have been extensively studied to remove contaminants from aqueous solution. This research aimed at elucidating the mechanism of adsorption acridine orange (AO), a cationic dye, on low charge montmorillonite in order better understand principles behind AO removal using swelling clays. Proportional desorption exchangeable cations accompanying confirmed cation exchange as most dominant for removal. FTIR analyses further presence dye AOH + surface and interlayer XRD TG-DTG revealed adsorption, thus, intercalation molecules with different conformations higher levels. Molecular simulation showed dimer horizontal bilayer formation intercalated high At intermediate levels, formed mixtures single crystal scale, resulting significant broadening (0 0 1) peak. The results that uptake could far exceed capacity, an advantage treat wastewater containing dyes.