Effect of Ionic Strength and pH on the Sorption of Heavy Metals onto Polyaniline Copolymers in Aqueous Solutions
Angela Marineau,
Uliana Karpukhina,
Ruth Agyemang
et al.
Abstract:Polyaniline (PANI) and two copolymers, poly(aniline-co-o-toluidine) (PoTOL-50) and poly(aniline-co-o-anisidine) (PoANI-50) were synthesized with equal input ratios (1:1) to enhance PANI as sensing material for the sensing of various heavy metal analytes in aqueous solutions. The polymers were evaluated for both their sensitivity and selectivity toward four heavy metals (Ba 2+ , Cd 2+ , Cu 2+ , and Ni 2+ ) and two common matrix interferents (Ca 2+ and Mg 2+ ) at 10 and 40 ppm. The effect of pH and ionic strengt… Show more
E-waste contains a variety of non-renewable precious metal resources, and its content is significantly higher than the abundance of precious metals in the corresponding ores. Therefore, it is of great...
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