Highly sensitive sensor based on decorated copper nanoparticles and self-assembled graphene for nitrate detection

Li Wang, Jungyoon Kim, Tianhong Cui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A sensor based on decorated copper nanoparticles and self-assembled graphene was fabricated to detect nitrite solutions. Traditionally, graphene is coated on the sensor by drop-casting, leading to poor adhesion between graphene and the sensor. The self-assembled graphene proposed in this paper not only offer a firm connection with the substrate, but also provide a 3-dimensional network structure for copper nanoparticles. Copper was found as an effective catalyst for nitrate reduction. The combination of copper nanoparticles and self-assembled graphene can greatly enhance the sensitivity. Thus, low detection limit (LOD) of 7.89 μM is obtained when testing nitrate solutions.

Original languageEnglish (US)
Title of host publication21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017
PublisherChemical and Biological Microsystems Society
Pages595-596
Number of pages2
ISBN (Electronic)9780692941836
StatePublished - Jan 1 2020
Event21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 - Savannah, United States
Duration: Oct 22 2017Oct 26 2017

Publication series

Name21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017

Conference

Conference21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017
CountryUnited States
CitySavannah
Period10/22/1710/26/17

Keywords

  • Copper nanoparticles
  • Graphene
  • Nitrate detection
  • Self-assembling

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