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Carbon-quantum dots derived from denatured milk for efficient chromium-ion sensing and supercapacitor applications

  • Mattath Athika
  • , Arul Prasath
  • , Ezhumalai Duraisamy
  • , Vaithiyanathan Sankar Devi
  • , Arumugam Selva Sharma*
  • , Perumal Elumalai
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

We demonstrate here a sustainable approach to generate carbon-quantum dot (CQD) using denatured (spoiled) milk by a simple one-step hydrothermal method. The unique photophysical property of the CQD has resulted in selective sensing of the chromium ions (Cr 6+ ) as low as 14 µM in control and environmental water samples. The CQD electrode delivered a specific capacitance of 95 F g −1 with an exceptional stability over 1000 cycles.

Original languageEnglish
Pages (from-to)156-159
Number of pages4
JournalMaterials Letters
Volume241
DOIs
StatePublished - 15 Apr 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

  • Carbon-quantum Dot
  • Chromium (VI)
  • Fluorescent probe
  • Supercapacitor
  • Waste milk

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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