Phosphorus-Doped Graphene Oxide Layer as a Highly Efficient Flame Retardant

Surajit Some, Iman Shackery, Sun Jun Kim, Seong Chan Jun

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

A simple and easy process has been developed to efficiently dope phosphorus into a graphene oxide surface. Phosphorus-doped graphene oxide (PGO) is prepared by the treatment of polyphosphoric acid with phosphoric acid followed by addition of a graphene oxide solution while maintaining a pH of around 5 by addition of NaOH solution. The resulting materials are characterized by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Raman spectroscopy, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The as-made PGO solution-coated cloth exhibits excellent flame retardation properties. The PGO-coated cloth emits some smoke at the beginning without catching fire for more than 120s and maintains its initial shape with little shrinkage. In contrast, the pristine cloth catches fire within 5s and is completely burned within 25s, leaving trace amounts of black residue. The simple technique of direct introduction of phosphorus into the graphene oxide surface to produce phosphorus-doped oxidized carbon nanoplatelets may be a general approach towards the low-cost mass production of PGO for many practical applications, including flame retardation.

Original languageEnglish
Pages (from-to)15480-15485
Number of pages6
JournalChemistry - A European Journal
Volume21
Issue number44
DOIs
Publication statusPublished - 2015 Oct 1

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All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Organic Chemistry

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