Synthesis of Silicon Carbide Nanocrystals Using Waste Poly(vinyl butyral) Sheet

Sung Woo Park, Jae Chan Kim, Byung Kook Kim, Dong Wan Kim, B. Gao

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

SiC nanocrystals were prepared using waste poly(vinyl butyral) sheet as a carbon source. SiO2/poly(vinyl butyral) mixtures are converted to SiO2/pyrolytic carbon composites via pyrolysis at low temperatures (500°C) in an Ar atmosphere. Subsequently, low-temperature magnesiothermic reduction and purification processes result in the formation of tiny SiC nanocrystals. The size of the synthesized SiC nanocrystals ranged from 3 to 12 nm, i.e., they are smaller than the SiO2 precursor offering large specific surface area of 175.76 m2/g and are single phase as 3C-SiC. Hence, 3C-SiC nanocrystals were successfully synthesized using waste poly(vinyl butyral) through this simple, inexpensive, and scalable process, which will be a new application in the recycling industry.

Original languageEnglish
Pages (from-to)1885-1888
Number of pages4
JournalJournal of the American Ceramic Society
Volume99
Issue number6
DOIs
Publication statusPublished - 2016 Jun 1

Keywords

  • SiC nanocrystal
  • magnesiothermic reduction
  • poly(vinyl butyral)
  • recycling
  • waste

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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