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Nickel and Tungsten Bimetallic Nanoparticles Modified Pencil Graphite Electrode: A High‐performance Electrochemical Sensor for Detection of Endocrine Disruptor Bisphenol A
Author(s) -
Lavanya Akkaraboyina Lakshmi,
Kumari K. Gowri Bala,
Prasad K. R. S.,
Kumar Brahman Pradeep
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202060277
Subject(s) - bimetallic strip , materials science , dielectric spectroscopy , cyclic voltammetry , electrochemical gas sensor , detection limit , nanocomposite , bisphenol a , electrode , nanoparticle , electrochemistry , nuclear chemistry , chemical engineering , analytical chemistry (journal) , nanotechnology , metallurgy , chemistry , chromatography , composite material , epoxy , engineering , metal
In this work, an economically viable, very low cost, indigenous, ubiquitously available electrochemical sensor based on bimetallic nickel and tungsten nanoparticles modified pencil graphite electrode (NiNP‐WNP@PGE) was fabricated for the sensitive and selective detection of bisphenol A (BPA). The NiNP‐WNP@PGE sensor was prepared by a facile electrochemical one step co‐deposition method. The prepared nanocomposite was morphologically characterized by scanning electron microscopy (SEM), energy dispersive X‐ray (EDX), X‐ray diffraction (XRD), electrochemically by cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The proposed sensor displayed high electrocatalytic activity towards electro‐oxidation of BPA with one irreversible peak. The fabricated sensor displayed a wide detection window between 0.025 μM and 250 μM with a limit of detection of 0.012 μM. PGE sensor was successfully engaged for the detection of BPA in bottled water, biological, and baby glass samples.