Effect of Ionic Strength and pH on the Sorption of Heavy Metals onto Polyaniline Copolymers in Aqueous Solutions
Source abstract
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 strength of the aqueous solutions on the sensitivity and selectivity was also evaluated. All three polymers showed high sensitivity and selectivity to Ba 2+ . Varying the pH and ionic strength of solutions did not show significant differences in either the selectivity or the sensitivity of the polymers.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Conducting polymers and applications · Electrochemical Analysis and Applications · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Trent University, 1600 W. Bank Dr, Peterborough, Ontario K9L0G2, Canada
Funding
Trent University
References (55)
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