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Microwave‐Assisted Synthesis of a Polypyrrole/Graphene Composite Using a Pyrrole‐Induced Graphene Oxide Hydrogel for the Selective Determination of Dihydroxybenzenes
Author(s) -
Qi Yunlong,
Cao Yue,
Meng Xiaotong,
Yu Kecheng,
Si Weimeng,
Lei Wu,
Hao Qingli,
Li Jiao,
Wang Fagang
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201801306
Subject(s) - graphene , polypyrrole , hydroquinone , oxide , pyrrole , composite number , materials science , catechol , polymerization , chemical engineering , nanotechnology , chemistry , composite material , organic chemistry , polymer , engineering , metallurgy
Abstract Pyrrole was utilized to induce the cross‐link of graphene oxide, resulting in a stable hydrogel. Following, polypyrrole/graphene composite was prepared using direct microwave treatment of this pyrrole‐induced hydrogel. Where, graphene oxide was chemically reduced and pyrrole in the composite was polymerized. The polypyrrole was homogeneously distributed throughout the graphene sheets. The as‐synthesized composite had a three‐dimensional, cross‐linked structure with advanced electro‐catalytic properties for hydroquinone and catechol. This feature was demonstrated by the superior electrochemical reversibility and good peak separation exhibited by the novel composite material. Accordingly, the detection of the two dihydroxybenzenes using this material produced a detection limit of 0.88 μM for hydroquinone and 0.69 μM for the catechol.