Doping effect on the sensing properties of ZnO nanoparticles for detection of 2-chloroethyl ethylsulfide as a mustard simulant

Ran Yoo, Dongmei Lee, Sungmee Cho, Wooyoung Lee

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10 Citations (Scopus)

Abstract

In this work, we report the gas sensing properties of un-doped and M (M = Al, Co, Cu, Mn)-doped ZnO nanoparticles (NPs), synthesized by a hydrothermal method for the detection of 2-chloroethyl ethyl sulfide (2-CEES), as a mustard simulant. X-ray diffraction and X-ray photoelectron spectroscopy characterizations reveal that Al-doped ZnO NPs were successfully fabricated. The sensing response of 1 at% Al-doped ZnO NPs was found to be the maximum (R = 954.2) at 500 °C, owing to enhanced conductivity and concentration of the oxygen vacancies after Al doping. Al is a more effective dopant for ZnO NPs toward enhancing its sensing properties for the detection of 2-CEES than Cu, Co, or Mn. The Al-doped ZnO NPs are both sensitive and selective to 2-CEES. The sensing performance of these NPs for 2-CEES is approximately 15 times better than the ones reported previously for other types of NPs.

Original languageEnglish
Pages (from-to)1242-1248
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume254
DOIs
Publication statusPublished - 2018 Jan

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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