Improving ultraviolet light photocatalytic activity of polyaniline/silicon carbide composites by Fe-doping

KÖYSÜREN Ö.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.137, sa.14, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 137 Sayı: 14
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1002/app.48524
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Biotechnology Research Abstracts, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Fe-doped SiC, photocatalytic activity, polyaniline, polymer composite, UV light, VISIBLE-LIGHT, SILICON-CARBIDE, WASTE-WATER, ADVANCED OXIDATION, 3C-SIC NANOWIRES, DYE DEGRADATION, UV, NANOCOMPOSITES, NANOPARTICLES, REMOVAL
  • Ankara Üniversitesi Adresli: Evet

Özet

It was aimed to prepare polyaniline (Pani) composites, including silicon carbide (SiC) nanofibers doped with iron (Fe) ions. The Fe-doping of SiC was performed to enhance the photocatalytic activity of the composites through the separation of photoexcited mobile charge carriers. For comparison purposes, Pani composites were also prepared with undoped SiC nanofibers. The composite samples were characterized by FTIR, XRD, SEM, EDX, and UV-Vis spectroscopies. Experiments on photocatalytic degradation of methylene blue under ultraviolet light irradiation revealed that Pani/SiC-Fe composites exhibited higher photocatalytic activity when compared with Pani/SiC composites. Almost 22% dye removal was obtained within 300 min with the Pani composite, containing 15 wt.% SiC-Fe. FTIR, XRD, SEM, EDX, and UV-Vis spectroscopies demonstrated that SiC nanofibers were successfully doped with iron ions and incorporated into the polyaniline matrix. The original aspect of this study was to research the photocatalytic activity of polyaniline composites containing iron-doped SiC nanofibers. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48524.