A colorimetric Fe^sup 3+^ sensor based on an anionic poly(3,4-propylenedioxythiophene) derivative

An anionic water-soluble poly(3,4-propylenedioxythiophene) derivative (PProDOTCB-salt) with double-Y shaped carboxyl-containing side chains has been applied as a colorimetric sensor to detect Fe3+ in 100% aqueous solutions. The Fe3+-induced disassembly of inter-chain aggregates, conformation changes...

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Bibliographic Details
Published inSensors and actuators. B, Chemical Vol. B244; p. 891
Main Authors Chen, Xiaoming, Zhao, Qingchun, Zou, Wensheng, Qu, Qishu, Wang, Feng
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier Science Ltd 01.06.2017
Subjects
Aqueous solutions
Colorimetry
Dismantling
Ferric ions
Fluorescence
Molecular chemistry
Molecular conformation
Polymer chemistry
Sensitivity analysis
Sensors
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Summary:An anionic water-soluble poly(3,4-propylenedioxythiophene) derivative (PProDOTCB-salt) with double-Y shaped carboxyl-containing side chains has been applied as a colorimetric sensor to detect Fe3+ in 100% aqueous solutions. The Fe3+-induced disassembly of inter-chain aggregates, conformation changes, intra-chain aggregation of PProDOTCB-salt and its colorimetric and fluorescent responses have been studied by absorption and fluorescence spectroscopy. The results indicate that Fe3+ can be detected with the naked eye through the color change of polymer solutions from purple to faint yellow. In addition the Fe3+ detection ability of the sensor is unaffected with the presence of other commonly coexistent ions.
ISSN:0925-4005
1873-3077