Fig. 2: pH-tunable static adsorption feature of AOPIM-1 polymer.
From: Microporous polymer adsorptive membranes with high processing capacity for molecular separation
a Nitrogen absorption isotherms of AOPIM-1 as-prepared and after immersing in acid (pH = 3) or base (pH = 10) for at least 24 h; b Equilibrium adsorption capacity (qe) of AOPIM-1 for MO and MB dye molecules at different pH conditions; c Adsorption isotherm of MO and MB by AOPIM-1 at acidic and alkaline conditions, respectively (qe: equilibrium adsorption capacity, qm: maximum adsorption capacity, Ce: concentration of dye molecules at equilibrium); d Adsorption of MO and MB by AOPIM-1 as a function of contact time at acidic and alkaline conditions, respectively (qt: adsorption amount at time t).
