Large interlayer spacing Nb4C3T: X (MXene) promotes the ultrasensitive electrochemical detection of Pb2+on glassy carbon electrodes

P. Abdul Rasheed, Ravi P. Pandey, Tricia Gomez, Michael Naguib, Khaled A. Mahmoud*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

A Nb4C3Tx (MXene)-modified glassy carbon electrode was used for the electrochemical detection of Pb2+ ions in aqueous media. The sensing platform was evaluated by anodic stripping analysis after optimizing the influencing factors such as pH, deposition potential, and time. The large interlayer spacing, high c lattice parameter and higher conductivity of Nb4C3Tx compared to other MXenes enhance the electrochemical detection of Pb2+. The developed sensor can reach a detection limit of 12 nM at a potential ∼-0.6 V. Additionally, the developed sensor showed promising selectivity in the presence of Cu2+ and Cd2+, and stability for at least 5 cycles of continuous measurements with good repeatability. This work demonstrates the potential applications of Nb4C3Tx towards the development of effective electrochemical sensors.

Original languageEnglish
Pages (from-to)24697-24704
Number of pages8
JournalRSC Advances
Volume10
Issue number41
DOIs
Publication statusPublished - 29 Jun 2020

Fingerprint

Dive into the research topics of 'Large interlayer spacing Nb4C3T: X (MXene) promotes the ultrasensitive electrochemical detection of Pb2+on glassy carbon electrodes'. Together they form a unique fingerprint.

Cite this