Skip to main navigation Skip to search Skip to main content

Dissolved oxygen detection by galvanic displacement-induced graphene/silver nanocomposite

  • Li Fu
  • , Yuhong Zheng
  • , Zhuxian Fu
  • , Aiwu Wang
  • , Wen Cai
  • CAS - Jiangsu Institute of Botany
  • Golden Yuanta Construction Engineering Co., Ltd.
  • City University of Hong Kong

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

This paper proposed a simple, efficient and sensitive electrochemical sensor for dissolved oxygen (DO) detection based on a galvanic displacement synthesized reduced graphene oxide-silver nanoparticles (RGO/Ag) composite modified grassy carbon electrode (GCE). The synthesized RGO/Ag nanocomposite was characterized by UV-vis spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results indicate the graphene oxide (GO) has been successfully reduced during the galvanic displacement process and the average size of Ag nanoparticle is 52 nm. The RGO/Ag nanocomposite-modified GCE showed a significant enhancement of DO detection compared with bare and RGO-modified GCEs. Moreover, the proposed DO sensor also exhibited an excellent repeatability, reproducibility and anti-interference ability.

Original languageEnglish
Pages (from-to)611-616
Number of pages6
JournalBulletin of Materials Science
Volume38
Issue number3
DOIs
StatePublished - Jun 2015
Externally publishedYes

Keywords

  • Dissolved oxygen
  • Graphene
  • Nanocomposite
  • Sensor

Fingerprint

Dive into the research topics of 'Dissolved oxygen detection by galvanic displacement-induced graphene/silver nanocomposite'. Together they form a unique fingerprint.

Cite this