An electrochemical sensor based on the composite UiO-66-NH2/rGO for trace detection of Pb(II) and Cu(II)

Abstract

Pb(II) and Cu(II) can cause serious harm to human health. Therefore, it is of great significance to develop highly sensitive detection methods. Herein, the composite UiO-66-NH2/rGO was prepared by in-situ growth method. The UiO-66-NH2/rGO showed high sensitivity with Pb(II) of 6.27 μA/μM and Cu(II) of 6.83 μA/μM. Additionally, the UiO-66-NH2/rGO exhibits excellent repeatability, reproducibility, anti-interference properties and practical application potential. These results indicate that UiO-66-NH2/rGO is an excellent electrode modification material. The composite has the advantages of high sensitivity and good practical application effect. This work provides a strategy for the application of UiO-66-NH2 in the field of electrochemical sensing.