Removal of malachite green by adsorption and precipitation using aminopropyl functionalized magnesium phyllosilicate

► Preparation of aminopropyl functionalized magnesium phyllosilicate (AMP clay). ► Characterization of AMP clay and AMP clay-malachite green (MG) mixture. ► Novel precipitation mechanism including MG fading plus collapsed AMP clay. ► Adsorption kinetics and thermodynamics of MG using AMP clay.