4.4 Article

Graphene-Gold Nanoparticles Nanohybrids for Electrochemical Detection of Malachite Green

Journal

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
Volume 12, Issue 8, Pages 7557-7569

Publisher

ESG
DOI: 10.20964/2017.08.49

Keywords

Malachite green; MG; Graphene-Gold nanoparticles nanohybrids; Electrochemical detection; electrochemical sensor

Funding

  1. Joint Talent Cultivation Funds of NSFC-HN [U1204214]
  2. National Natural Science Foundation of China [21203053, 41206076]
  3. National key research and development program of China [2016YFC1400803, 2016YFC1600801]
  4. Innovation Research Team of Science and Technology in Henan province [16IRTSTHN019]
  5. Young Key Teacher Foundation of Henan Province's Universities [2015GGJS-022]
  6. Key Scientific Research Project of Henan Province's Universities [16A360017]
  7. Science and Technology Development Project of Kaifeng [1503006]
  8. Scientific Research Foundation of Henan University [B2010079, B2011037]

Ask authors/readers for more resources

Malachite green (MG) was an important bactericide and is now banned in different countries due to it's bad effect to human health. In this work, graphene-gold nanohybrids (Graphene-GNPs) were prepared by the chemical co-reduction of Au (III) and graphene oxide (GO) with sodium citrate. These Graphene-GNPs were characterized by TEM, SEM, XRD and EDS. After deposition on glassy carbon electrode (GCE), an electrochemical sensor was proposed for the electrochemical detection of MG. The electrocatalytic oxidation of MG on Graphene-GNPs modified GCE (Graphene-GNPs/GCE) was investigated by differential pulse voltammetry (DPV), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results showed that the Graphene-GNPs could enhance the electrochemical detection performance towards oxidation of MG. Under the optimized condition, the constructed MG electrochemical sensor showed linear dynamic range from 0.1 mu m to 800 mu M. Moreover, the proposed MG electrochemical sensor has also been successfully used for MG determination in real water samples with satisfied recoveries (97.5 % to 109.6 %) and precision (0.35 % to 5.57 %).

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.4
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available