Phosphorus-doped carbon dots (P-CDs)from dextrose for low-concentration ferric ions sensing in water

Research output: Contribution to journalArticle

Abstract

The development of low-cost optical nanosensors for quick and selective metals detection in water is of high demand. In this study, we report on the fast and low-cost fabrication of phosphorus-doped carbon dots (P-CDs)for potential low-concentration detection of ferric ions in water. Prepared P-CDs have a narrow size distribution of 2.8 ± 0.94 nm and excitation-dependent fluorescence emission. The maximum emission was detected at 452 nm with a quantum yield of 6.73 ± 0.04%. Selectivity test reveals that prepared P-CDs are highly selective to ferric ions in water. We showed that P-CDs can be utilized as a fluorescent nanosensor for sensitive detection of Fe(III)ions in the range of 1–20 ppm.

Original languageEnglish
Pages (from-to)70-73
JournalOptik
Volume187
DOIs
Publication statusPublished - Jun 2019

Fingerprint

Dextrose
ferric ions
Phosphorus
phosphorus
low concentrations
Carbon
Ions
Nanosensors
Glucose
Water
carbon
water
Quantum yield
Costs
selectivity
Metals
Fluorescence
Fabrication
fluorescence
fabrication

Keywords

  • Carbon dots
  • Fe(III)sensing
  • Fluorescence
  • Phosphorus doping

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

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abstract = "The development of low-cost optical nanosensors for quick and selective metals detection in water is of high demand. In this study, we report on the fast and low-cost fabrication of phosphorus-doped carbon dots (P-CDs)for potential low-concentration detection of ferric ions in water. Prepared P-CDs have a narrow size distribution of 2.8 ± 0.94 nm and excitation-dependent fluorescence emission. The maximum emission was detected at 452 nm with a quantum yield of 6.73 ± 0.04{\%}. Selectivity test reveals that prepared P-CDs are highly selective to ferric ions in water. We showed that P-CDs can be utilized as a fluorescent nanosensor for sensitive detection of Fe(III)ions in the range of 1–20 ppm.",
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AB - The development of low-cost optical nanosensors for quick and selective metals detection in water is of high demand. In this study, we report on the fast and low-cost fabrication of phosphorus-doped carbon dots (P-CDs)for potential low-concentration detection of ferric ions in water. Prepared P-CDs have a narrow size distribution of 2.8 ± 0.94 nm and excitation-dependent fluorescence emission. The maximum emission was detected at 452 nm with a quantum yield of 6.73 ± 0.04%. Selectivity test reveals that prepared P-CDs are highly selective to ferric ions in water. We showed that P-CDs can be utilized as a fluorescent nanosensor for sensitive detection of Fe(III)ions in the range of 1–20 ppm.

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