Arabian Journal of Chemistry (Feb 2024)

Facile synthesis of ultrathin carbon nanosheets from waste cellulose

  • Thaar M.D. Alharbi,
  • Mohammed J.K. Bashir,
  • Anindya Nag,
  • Wael H. Alsaedi,
  • Matt Jellicoe,
  • Jonathan Woon Chung Wong,
  • Liwen Luo,
  • Xin Xiong,
  • Zihan Feng,
  • Jiayue Fang,
  • Jun Zhao,
  • Shan He

Journal volume & issue
Vol. 17, no. 2
p. 105515

Abstract

Read online

Ultrathin carbon nanosheets were fabricated using renewable carbon sources. Cellulose, an important component in the food industry, was processed to form a food byproduct and used to synthesize carbon nanosheets. Both bacterial and nonbacterial cellulose from kombucha byproducts and apple pomace, respectively, were processed via purification and pyrolysis. An inert argon atmosphere and elevated temperatures of 600 °C–800 °C for 20 min were maintained during pyrolysis. Under these conditions, the apple pomace produced a higher yield of nanosheets than the kombucha byproduct. The nanosheets with the thickness of 4 nm were characterized using different spectroscopic techniques such as Fourier transform infrared spectroscopy and Raman spectroscopy as well as microscopic techniques such as scanning electron microscopy and atomic force microscopy. This sustainable, simple, and green method of carbon nanosheet production is a promising alternative to conventional methods of production.

Keywords