Development of a highly efficient low-cost filter for effective dissolved heavy metal and organic contaminant removal

Yatin Chandar, Nevada, USA 16-18

This work demonstrates a novel method for remediation of heavy metal cation and aromatic pollutants from water with high efficiency and high scalability. This method utilizes the chelation potential of deprotonated catecholamine groups in polydopamine (PDA) to remove heavy metal ions from water, and utilizes strong aromatic-aromatic and intermolecular interactions to remove aromatic dyes. The high surface area of these biocompatible nanoparticles increases adsorption efficiency. When combined with a biodegradable, biocompatible substrate such as bacterial nanocellulose, the resultant membrane meets or even exceeds the requirements for safe, simple, and scalable removal of many dangerous water pollutants.

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