Preparation and performance of sensing material for diethyl ether: Optimization of working conditions by response surface methodology

  1. Wenjuan Zhang,
  2. Fuxiu Yang,
  3. Hong Wang,
  4. Chunxiu Gu,
  5. Yun Lu and
  6. Kaowen ZhouORCID Logo

Submitting author affiliation: Beijing Union University, Beijing, China

Beilstein Arch. 2020, 202036.

Published 30 Mar 2020

  • Preprint


Pd doped ZnNi3Al2O7 composite was synthesized by sol-gel and impregnation method. The EDS spectrum and TEM image showed that Pd atoms are uniformly distributed on the surface of ZnNi3Al2O7 with a particle size of less than 50 nm. A sensitive diethyl ether gas sensor based on cataluminescence on the composite at lower temperature than 200℃ was reported. There is a good linear relationship between the luminescence intensity and the concentration of diethyl ether in the range of 0.1-75 mg/m3. The detection limit (3σ) is 0.06 mg/m3. The working conditions optimized by response surface methodology were analytical wavelength of 548.86 nm, reaction temperature of 109.18℃ and carrier gas velocity of 125.88 ml/min, respectively. The sensitivity of the method can be increased by 4.5% under the optimized working conditions. The optimization method is universal for many multi parameter processes.

Keywords: Diethyl ether; Cataluminescence; Low temperature; Sensitive material; Response surface methodology

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Zhang, W.; Yang, F.; Wang, H.; Gu, C.; Lu, Y.; Zhou, K. Beilstein Arch. 2020, 202036. doi:10.3762/bxiv.2020.36.v1

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