Back to Search
Start Over
Signal-amplified electrochemical monitoring of 4-chlorophenol in water environments based on Ni-BDC decorated multi-walled carbon nanotubes.
- Source :
- Journal of Environmental Chemical Engineering; Oct2024, Vol. 12 Issue 5, pN.PAG-N.PAG, 1p
- Publication Year :
- 2024
-
Abstract
- Developing rapid and reliable electrochemical monitoring methods for 4-CP is of great significance to ensure the safety of the water environment. Electrochemical sensing materials with high sensitivity and selectivity are urgently needed. Here, interlaced sheet-like Ni-BDC frameworks (BDC: 1,4-dicarboxybenzene) and multi-walled carbon nanotubes (MWCNTs) composite (Ni-BDC/MWCNTs) are constructed via in-situ self-assembly of Ni-BDC in the presence of MWCNTs at room temperature. Because of the large specific surface area, high electrochemical activity of Ni-BDC, and the outstanding electrical conductivity of MWCNTs, the obtained Ni-BDC/MWCNTs compound had a significant signal enhancement effect for the oxidation of 4-CP based on the large electrochemical active area, fast electron transfer ability, strong accumulation ability, and high electrocatalytic rate. It was found that the electrochemical oxidation of 4-CP involved the transfer of an electron and a proton. A wide linear range (0.1–50 and 50–500 μM), low detection limit (16.5 nM), high reproducibility, strong stability, and good selectivity were achieved at the Ni-BDC/MWCNTs sensing platform. It also has been successfully used to monitor 4-CP in different river water samples, and got similar results compared to HPLC, which provides promising potential for application in water environment safety monitoring and protection. [Display omitted] • A novel sensor platform for electrochemical monitoring of 4-chlorophenol in water environments was successfully constructed. • The combination of 2D Ni-BDC MOFs and MWCNTs could effectively improve the electrochemical sensing performance. • This sensor would show promising potential for application in water environment safety monitoring and protection. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22133437
- Volume :
- 12
- Issue :
- 5
- Database :
- Supplemental Index
- Journal :
- Journal of Environmental Chemical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 179809588
- Full Text :
- https://doi.org/10.1016/j.jece.2024.113532