Abstract
The development of novel electrocatalyst materials with excellent characteristics is inevitably needed to satisfy the practical application of electrochemical sensors. In this study, the 2D ZnCr layered double hydroxide (LDH)/tungsten carbide (WC) composite was prepared by the hydrothermal method and investigated as the electrochemical electrode material for mesalazine (MSZ) detection. The ZnCr-LDH/WC modified electrode has superior electrocatalytic activity towards the MSZ detection compared to the reported modified and unmodified electrodes. The combination of ZnCr-LDH and WC constitutes a 2D/2D composite, which exhibits high electrical conductivity, a large specific surface area, and rapid electron transfer, thus guaranteeing efficient electrocatalytic performance. The ZnCr-LDH/WC modified electrode exhibits a wide working range (0.03–254 µM), low limit of detection (6.0 nM), high sensitivity (4.085 μA μM−1 cm−2), excellent selectivity, and good reproducibility towards the detection of MSZ. The fabricated electrochemical sensor has been successfully applied to determine the contents of MSZ in human-urine and river-water samples. The presented strategy will pave the way for developing 2D/2D composite for electrochemical applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
