TY - JOUR
T1 - Electrochemical Sensing Platform for the Detection and Degradation Studies of Metanil Yellow
AU - Hakeem, Muhammad Kamran
AU - Shah, Afzal
AU - Jan Nisar, Nisar
AU - Jan Iftikhar, Faiza
AU - Khan, Sher Bahadar
AU - Shah, Iltaf
N1 - Funding Information:
Dr. Sher Bahadar Khan acknowledges the Deanship of Scientific Research (DSR) at King Abdul Aziz University, Jeddah, Saudi Arabia, for supporting this project (grant No. KEP-32–130–42). Dr. Afzal Shah acknowledges the support of Quaid-i-Azam University and Higher Education Commission of Pakistan.
Publisher Copyright:
© 2022 Electrochemical Society Inc.. All rights reserved.
PY - 2022/5/1
Y1 - 2022/5/1
N2 - The discharge of dye loaded effluents from textile and food industries into natural water has skyrocketed in the last few years due to booming industrialization that stands to serve a mushrooming population. The adulterated water poses a serious threat to human and aquatic life. The present work aims to engage electrochemical methods by designing an electrochemical sensor using a modified glassy carbon electrode with amine functionalized multi-walled carbon nanotubes (NH2-fMWCNTs) to detect nanomolar concentration of Metanil Yellow (MY) which is an azo dye used illegally in food industry. Various experimental conditions, such as the supporting electrolyte, pH of the electrolyte, deposition potential, and deposition time were optimized for the best performance of the designed sensing platform by square wave anodic stripping voltammetry (SWASV). Under optimized conditions, the limit of detection of MY was found to be 0.17 nM. The catalytic degradation of the dye was also probed by the designed nanosensor electrochemically and the results were supported by UV visible spectroscopic technique. The dye was found to follow pseudo first order kinetics with a degradation extent of 98.7%. The obtained results hold great promise in the context of water purification for safeguarding human and aquatic lives from the effects of toxic dye effluents.
AB - The discharge of dye loaded effluents from textile and food industries into natural water has skyrocketed in the last few years due to booming industrialization that stands to serve a mushrooming population. The adulterated water poses a serious threat to human and aquatic life. The present work aims to engage electrochemical methods by designing an electrochemical sensor using a modified glassy carbon electrode with amine functionalized multi-walled carbon nanotubes (NH2-fMWCNTs) to detect nanomolar concentration of Metanil Yellow (MY) which is an azo dye used illegally in food industry. Various experimental conditions, such as the supporting electrolyte, pH of the electrolyte, deposition potential, and deposition time were optimized for the best performance of the designed sensing platform by square wave anodic stripping voltammetry (SWASV). Under optimized conditions, the limit of detection of MY was found to be 0.17 nM. The catalytic degradation of the dye was also probed by the designed nanosensor electrochemically and the results were supported by UV visible spectroscopic technique. The dye was found to follow pseudo first order kinetics with a degradation extent of 98.7%. The obtained results hold great promise in the context of water purification for safeguarding human and aquatic lives from the effects of toxic dye effluents.
KW - Electroanalytical Electrochemistry
KW - Sensors
KW - Surface modification
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U2 - 10.1149/1945-7111/ac6981
DO - 10.1149/1945-7111/ac6981
M3 - Article
AN - SCOPUS:85130026031
SN - 0013-4651
VL - 169
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 5
M1 - 056503
ER -