Heavy metals such as arsenic, cadmium, chromium, nickel, and lead are a well-known source of air, water, and soil pollution. Their presence in the environment can cause harmful effects in plants, animals, and humans. To address the consequences of heavy metals pollution, there is a need for technology to detect, capture and remove heavy metal contamination from the environment. This presentation reports the synthesis and characterization of polypyrrole (PPy) - magnetite (Fe3O4-PPy) nanoparticles, prepared via a chemical oxidative polymerization process, using polyvinyl alcohol as a surfactant. The Fe3O4-PPy nanoparticles have spherical shape and size ranging from 110 to 220 nm and are characterized by high magnetic properties and electrical conductivity. The particles displayed high sorption capacity for arsenic, and show promising characteristics for use as sorbent for the removal of heavy metals from contaminated water. Their high affinity for heavy metal contaminants also provided a platform to develop a highly sensitive electrochemical method for low cost detection of heavy metals using the principles of nano-impact electrochemistry. The synthesis and characterization of the magnetic nanocomposite, along with the performance evaluation of the novel nano-impact method to detect heavy metals will be discussed.

Magnetic and electrically conductive polypyrrole nanoparticles as highly effective materials for heavy metal removal and sensing

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.