Title :

A Thiomidazolylborate based Carbon Paste Electrode for Voltametric Detection of Heavy Metals in Wastewater

Author(s) :

Mersal, Gaber A.M. [Auteur correspondant]
Taif University [TU]
El-Sheshtawy, Hamdy [Auteur]
Kafrelsheikh University
Fallatah, Ahmed [Auteur]
Taif University [TU]
Boukherroub, Rabah [Auteur]
NanoBioInterfaces - IEMN [NBI - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Amin, Mohammed [Auteur]
Taif University [TU]
Saleh, Dalia [Auteur]
Taif University [TU]
Ibrahim, Mohamed [Auteur]
Taif University [TU]

Journal title :

Asian Journal of Chemistry

Pages :

635-643

Publisher :

ASIAN PUBLICATION CORPORATION

Publication date :

2022-02-14

ISSN :

0970-7077

English keyword(s) :

Thioimidazolylborate
Modified CPE
Wastewater
Cyclic voltammetry
DFT calculations.

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

The ligand potassium hydrotris(N- (2,6-xylyl)-2-thioimidazolyl)borate (KTtxylyl) was utilized to construct a carbon paste modified electrode (KTtxylyl/CPE), which was studied using electrochemical impedance spectroscopy, ...
Show more >The ligand potassium hydrotris(N- (2,6-xylyl)-2-thioimidazolyl)borate (KTtxylyl) was utilized to construct a carbon paste modified electrode (KTtxylyl/CPE), which was studied using electrochemical impedance spectroscopy, cyclic voltammetry and square wave voltammetry (SWV). Its electrochemical response was investigated, and it demonstrated a significant improvement in the detection of both lead(II) and cadmium(II), allowing determination of lead(II) at trace concentrations. The spectroscopic evidence includes FT-IR, Raman, 1H NMR and also DFT calculations using B3LYP/LANL2DZ level of theory indicate the high affinities of these ions toward the ligand forming lead(II) and cadmium complexes of the type [TtxylylMCl]. Negative electrostatic potential of the tri(thione) donors deriving their binding abilities toward both ions. The detection limits based on 3(SD/m) were; 0.112 μM and 0.204 μM for lead(II) and cadmium(II), respectively. The simultaneous detection of these ions in several waste water samples was examined in order to verify the modified electrode. Data from the ICP-AES instrument was compared to the results obtained.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL