ZIF-67 Templated Synthesis of Nanoporous Carbon as an Efficient Adsorbent for Preconcentration of Flunitrazepam from Beverage Samples

Qiuhua Wu, Si Cheng, Hao Chen, Chun Wang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In this work, a nanoporous carbon (denoted as Co-NC) with high surface area, large pore volumes, strong magnetic response, and good graphitization degree was prepared using zeolitic imidazole framework (ZIF-67) as both a precursor and a template without any additional carbon source. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, vibrating sample magnetometer, and N2 adsorption were used to characterize the Co-NC. The Co-NC was explored as the magnetic adsorbent, and its adsorption performance was evaluated by extraction of flunitrazepam from beverage samples. Several experimental parameters affecting the extraction efficiencies were investigated and optimized. The results confirmed that the Co-NC showed an excellent adsorption capacity for flunitrazepam.

Original languageEnglish (US)
Pages (from-to)2772-2780
Number of pages9
JournalFood Analytical Methods
Volume10
Issue number8
DOIs
StatePublished - Aug 1 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Food Science
  • Applied Microbiology and Biotechnology
  • Safety, Risk, Reliability and Quality
  • Safety Research

Keywords

  • Beverage samples
  • Flunitrazepam
  • Magnetic adsorbent
  • Mass spectrometry
  • Nanoporous carbon

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