ARC discharge carbon nanoonions purification by liquid- liquid extraction

Authors

  • Frank J. Chao-Mujica
  • Juan G. , Darias-Gonzalez
  • Liudy Garcia-Hernández
  • Neil Torres-Figueredo,
  • Amira Paez-Rodriguez
  • Lorenzo Hernández-Tabares
  • Jose A. I. Díaz-Gongora
  • Luis F. Desdin-Garcia

Keywords:

Carbon Nanoonions, Submerged Arc Discharge, Purification, Liquid-Liquid Extraction

Abstract

Carbon nanoonions are novel carbon nanoestructures that have potential applications in fields like electronics and chemical catalysis. Here is reported a very simple but effective method of purifying carbon nanoonions produced by submerged arc discharge in water based on the liquid water – toluene liquid-liquid extraction. Purified and non-purified samples were characterized by atomic force microscopy, high resolution transmission electronic microscopy and Brunauer-Emmett-Teller gas adsorption isotherms method. Microscopy results showed a good purification and allowed the assessment of the particles diameter distribution. Specific surface area  was measured showing a great increment from (14.7 ± 0.3) m2×g-1 for the non-purified sample (14.7 ± 0.3) m2×g-1 for the non-purified sample to (170 ± 3) m2×g-1for the purified sample. Average particles diameter was also assessed from the adsorption isotherms; diameter values obtained by the three techniques were in good agreement being between 20 to 30 nm.

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Published

2019-05-02

How to Cite

Chao-Mujica, F. J., Darias-Gonzalez, J. G. , Garcia-Hernández, L., Torres-Figueredo, N., Paez-Rodriguez, A., Hernández-Tabares, L., … Desdin-Garcia, L. F. (2019). ARC discharge carbon nanoonions purification by liquid- liquid extraction. Anales De La Academia De Ciencias De Cuba, 9(2), e-633. Retrieved from https://revistaccuba.sld.cu/index.php/revacc/article/view/633

Issue

Vol. 9 No. 2 (2019): julio-diciembre

Section

Natural and Exact Sciences

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