Electrochemical Probe of the Reduced Graphene Oxide Modified by Bare Gold Nanoparticles Functionalized Zr(IV)‐based Metal‐organic Framework for Detecting Nitrite. Issue 4 (4th August 2021)

• Record Type: Journal Article
• Authors: Chen, Jing; Li, Shuying; Xu, Fanghong; Zhang, Qian
• Is Part Of: Electroanalysis. Volume 34:Issue 4(2022)
• Page Start: 701
• Page End: 708
• Publication Date: 2021-08-04
• Subjects: Electrochemical Probe -- UiO-66-NH2 -- Nitrite -- Reduced Graphene Oxide; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.202100209
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: Widely presented nitrite in drinking water, food and even physiological system endangers human health. Here, bare gold nanoparticles functionalized Zr‐based metal‐organic framework modified reduced graphene oxide (GNPs/UiO‐66‐NH2 /rGO) nanocomposites were prepared by hydrothermal method. This experiment studies the morphology, composition, structure and electrochemical behavior of the sensor. The experimental results show that the sensor has a peak potential of 0.9 V, the concentration range of NO2 − is 5.0 μM to 768 μM, the linear regression equation of the calibration curve is Ipa =0.3646+0.00642 C (R 2 =0.9998), and the LOD is as low as 3.7 μM (S/N=3). Therefore, an electrochemical sensor platform for trace detection of NO2 − was successfully constructed. Abstract :