4.6 Article

Polycurcumin nanospheres modified electrode for nanoscale detection of mercury ions in seawater

期刊

CHEMICAL PHYSICS LETTERS
卷 781, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.cplett.2021.138974

关键词

Polycurcumin; Electropolymerization; Stripping voltammetry; Mercury ion sensing

资金

  1. University Grants Commission (UGC) , New Delhi under university
  2. potential for excellence (UPE) -Phase II New Material Research Program

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Curcumin, a natural ligand, was successfully converted into nanosphere-shaped polycurcumin film using electropolymerization, enabling the detection of Hg2+ ions. Parameters were optimized for selective determination of Hg2+ ions, with a linear concentration range from 0.21 to 21.72 mu gL-1, and a LOD of 70.49 ngL-1.
Curcumin, a beta-diketone natural ligand is capable of coordinating and forming a stable complex with a variety of metal ions. In this study, we have reported electropolymerization that can convert macromolecules (curcumin) into nanosphere-shaped polycurcumin film (PCR-NS). The PCR-NS modified electrode was utilized for the detection of Hg2+ ions at a nanoscale concentration by the differential pulse anodic stripping voltammetry (DPASV) technique. Surface morphology and electrochemical behavior of the PCR-NS electrode and its metal complex were characterized. Parameters such as the effect of electrolyte, pH, preconcentration time were optimized for selective determination of Hg2+ ions with the linear concentration range from 0.21 to 21.72 mu gL-1, with LOD 70.49 ngL-1.

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