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Polyaniline Nanowire Arrays Deposited on Porous Carbon Derived from Raffia for Electrochemical Detection of Imidacloprid
Author(s) -
Liu Lei,
Guo Jiawei,
Ding Longhua
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.202100162
Subject(s) - polyaniline , detection limit , materials science , electrochemistry , porosity , electrode , electrochemical gas sensor , carbon fibers , chemical engineering , composite number , composite material , polymerization , chromatography , chemistry , polymer , engineering
An electrochemical sensor based on raffia derived porous carbon (RPC) and polyaniline (PANI) composite functional glass carbon electrode (GCE) was constructed for imidacloprid (IMI) determination. PANI nanowire arrays were deposited on RPC surface uniformly without aggregations. The electrochemical response of IMI at RPC@PANI/GCE is about four times than that at bare GCE, indicating high electrocatalytic activity of RPC@PANI towards IMI reduction. The prepared sensor also offers a wide linear range of 0.1–70 μg mL −1 for IMI determination with a limit of detection (LOD) of 0.03 μg mL −1 . In addition, it offers high recoveries with testing real samples.