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 language | English (US) |
|---|---|
| Title of host publication | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
| Publisher | Chemical and Biological Microsystems Society |
| Pages | 595-596 |
| Number of pages | 2 |
| ISBN (Electronic) | 9780692941836 |
| State | Published - Jan 1 2020 |
| Event | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 - Savannah, United States Duration: Oct 22 2017 → Oct 26 2017 |
Publication series
| Name | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
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Conference
| Conference | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
|---|---|
| Country/Territory | United States |
| City | Savannah |
| Period | 10/22/17 → 10/26/17 |
Bibliographical note
Funding Information:One of the authors acknowledges the support from China Scholarship Council. The devices are fabricated at Minnesota Nano Center, Minneapolis, MN, USA.
Publisher Copyright:
© 17CBMS-0001.
Keywords
- Copper nanoparticles
- Graphene
- Nitrate detection
- Self-assembling