TY - JOUR
T1 - Polypyrrole Composite Film for Highly Sensitive and Selective Electrochemical Determination Sensors
AU - Zheng, Xiangli
AU - Tian, Dong
AU - Duan, Shuo
AU - Wei, Maochao
AU - Liu, Shan
AU - Zhou, Changli
AU - Li, Qing
AU - Wu, Gang
PY - 2014/6/1
Y1 - 2014/6/1
N2 - In this paper, polypyrrole (PPy) and benz[a]anthracene-7,12-dione (BaD) were electro-polymerized onto a pyrolytic graphite electrode (PGE), constructing a novel BaD/PPy/PGE platform for electrochemical sensoring. The morphology and electrochemical properties of the fabricated BaD/PPy/PGE were characterized by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. Furthermore, the electrochemical behavior of benzo[k]fluoranthene (BkF) at the BaD/PPy/PGE was investigated. Due to the specific interactions between BkF and BaD, a wide linear range of BkF detection from 1.0 × 10-12 to 1.0 × 10-9 M with good linearity (R 2 = 0.9962) and a low detection limit (1.0 × 10-13 M, S/N = 3) were demonstrated. Importantly, other similar aromatics which had one ring or more than two rings, such as benzo[a]anthracene, benzo[a]pyrene, pyrene, benzo[ghi]peryle, anthracene, phenanthrene, naphthalene and parachlorophenol, showed insignificant interference on BkF detection. Consequently, this novel BaD/PPy/PGE with excellent stability and selectivity holds promise as an effective BkF electrochemical sensor in aqueous solution. As an example for its practical application, the newly developed sensor was applied to quantitative determination of BkF in waste water samples obtained from a coking plant with satisfactory sensitivity, selectivity, and reversibility.
AB - In this paper, polypyrrole (PPy) and benz[a]anthracene-7,12-dione (BaD) were electro-polymerized onto a pyrolytic graphite electrode (PGE), constructing a novel BaD/PPy/PGE platform for electrochemical sensoring. The morphology and electrochemical properties of the fabricated BaD/PPy/PGE were characterized by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. Furthermore, the electrochemical behavior of benzo[k]fluoranthene (BkF) at the BaD/PPy/PGE was investigated. Due to the specific interactions between BkF and BaD, a wide linear range of BkF detection from 1.0 × 10-12 to 1.0 × 10-9 M with good linearity (R 2 = 0.9962) and a low detection limit (1.0 × 10-13 M, S/N = 3) were demonstrated. Importantly, other similar aromatics which had one ring or more than two rings, such as benzo[a]anthracene, benzo[a]pyrene, pyrene, benzo[ghi]peryle, anthracene, phenanthrene, naphthalene and parachlorophenol, showed insignificant interference on BkF detection. Consequently, this novel BaD/PPy/PGE with excellent stability and selectivity holds promise as an effective BkF electrochemical sensor in aqueous solution. As an example for its practical application, the newly developed sensor was applied to quantitative determination of BkF in waste water samples obtained from a coking plant with satisfactory sensitivity, selectivity, and reversibility.
KW - Benzo[k]fluoranthene
KW - Benz[a]anthracene-7,12-dione
KW - Electrochemical sensoring
UR - https://www.scopus.com/pages/publications/84897403843
U2 - 10.1016/j.electacta.2014.03.018
DO - 10.1016/j.electacta.2014.03.018
M3 - Article
AN - SCOPUS:84897403843
SN - 0013-4686
VL - 130
SP - 187
EP - 193
JO - Electrochimica Acta
JF - Electrochimica Acta
ER -