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A Facile Synthesis of Cd(OH) 2 ‐rGO Nanocomposites for the Practical Electrochemical Detection of Acetaminophen
Author(s) -
Sakthivel Mani,
Sivakumar Mani,
Chen ShenMing,
Hou YuShen,
Veeramani Vediyappan,
Madhu Rajesh,
Miyamoto Nobuyoshi
Publication year - 2017
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.201600351
Subject(s) - differential pulse voltammetry , cyclic voltammetry , dielectric spectroscopy , nanorod , nanocomposite , materials science , electrochemical gas sensor , detection limit , scanning electron microscope , raman spectroscopy , nuclear chemistry , electrochemistry , analytical chemistry (journal) , electrode , chemical engineering , nanotechnology , chemistry , organic chemistry , chromatography , composite material , physics , optics , engineering
Herein, we report the preparation of nanorods‐like Cd(OH) 2 ‐rGO nanocomposites via using a simple co‐precipitation method. The as‐prepared Cd(OH) 2 ‐rGO materials were characterized by a variety of analytical and spectroscopy techniques such as scanning electron microscope (SEM), elemental analysis (EDX), X‐ray diffraction (XRD), and Raman spectroscopy. Interestingly, Cd(OH) 2 ‐rGO modified glassy carbon electrode (GCE) employed for the electrochemical detection of acetaminophen (AP) sensor for first time by using cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). The AP sensor exhibited an ultra‐high sensitivity of 24.452 µA µM −1  cm −2 and a low detection limit 0.08 µM with wider linear ranges from 0.1 to 102 µM. Notably, the obtained analytical parameters of the AP sensor using nanorods‐like Cd(OH) 2 ‐rGO modified GCE is superior than several rGO based nanocomposites suggesting more suitable for several practical pharmaceutical applications.

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