Green Synthesis of Novel Polyaniline Nanofibers: Application in pH SensingReportar como inadecuado




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BioAnalytical Chemistry and NanoBiomedicine Laboratory, Department of Biochemical Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan





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Academic Editor: Kei Saito

Abstract An optically active polyaniline nanomaterial PANI-Nap, doped with S-naproxen, was developed and evaluated as a potent pH sensor. We synthesized the material in one pot by the addition of the dopant, S-naproxen, prior to polymerization, followed by the addition of the oxidizing agent ammonium persulfate that causes polymerization of the aniline. This green chemistry approach allowed us to take only 1 h to produce a water-soluble and stable nanomaterial. UV-visible spectroscopy, fluorescence spectroscopy, FT-IR spectroscopy, Raman spectroscopy, scanning electron microscopy SEM, transmission electron microscopy TEM, and X-ray photoelectron spectroscopy XPS were used to characterize the designed nanomaterial. This nanomaterial exhibited excellent pH sensing properties and showed long term stability up to one month without loss of sensor performance. View Full-Text

Keywords: chiral polyaniline; nanofiber; synthesis; pH sensor; absorption spectroscopy chiral polyaniline; nanofiber; synthesis; pH sensor; absorption spectroscopy





Autor: Shivani Tanwar and Ja-an Annie Ho *

Fuente: http://mdpi.com/



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