Synthesis and characterization of graphene layers from rice husks

  • Makpal A. Seitzhanova al-Farabi Kazakh National University, Institute of Combustion Problems, Almaty, Kazakhstan
  • Dmitry I. Chenchik Institute of Combustion Problems, Almaty, Kazakhstan
  • Mukhtar A. Yeleuov Institute of Combustion Problems; Satpayev University, Almaty, Kazakhstan
  • Zulkhair A. Mansurov al-Farabi Kazakh National University, Institute of Combustion Problems, Almaty, Kazakhstan
  • Roberto Di Capua Department of Physics, University of Naples Federico II, Naples, Italy
  • Nazym S. Elibaeva al-Farabi Kazakh National University, Almaty, Kazakhstan
Keywords: graphene, rice husk, carbonization, exfoliation, chemical activation


In this work, a method of obtaining graphene layers from natural source specifically from rice husk was developed. A rice husk (RH) was used as a raw material, and potassium hydroxide was used as activation agent. The graphene layers were obtained after four successive stages: pre-carbonization, desilication in 1M NaOH solution, chemical activation and exfoliation of the carbonized rice husk (CRH). The obtained samples were studied using Raman spectroscopy, TEM and SEM; the Raman peaks evidenced the presence of graphene multilayers in the sample. A detailed observation of Raman spectroscopy showed that the obtained samples with ratio of 1/4 and 1/5 (RH/KOH) consisted of graphene layers with a high content of amorphous component. The yield of the product was ~ 3% by weight. This study can provide a new way to the large-scale synthesis of low-cost single and multi-layered graphene using rice husk or other renewable resources.


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How to Cite
Seitzhanova, M., Chenchik, D., Yeleuov, M., Mansurov, Z., Di Capua, R., & Elibaeva, N. (2018). Synthesis and characterization of graphene layers from rice husks. Chemical Bulletin of Kazakh National University, 89(2), 12-18.