Orbital - Vol. 9 No. 1 - January - March 2017
FULL PAPERS

Study of Porosity and Surface Groups of Activated Carbons Produced from Alternative and Renewable Biomass: Buriti Petiole

Cristiane Freitas de Almeida
Federal University of Grande Dourados (UFGD)/ Faculty of Exact Sciences and Technology - Campus II
Robson Carlos de Andrade
Federal University of Grande Dourados (UFGD)/ Faculty of Exact Sciences and Technology - Campus II
Giulyane Felix de Oliveira
Federal University of Grande Dourados (UFGD)/ Faculty of Exact Sciences and Technology - Campus II
Patrícia Hatsue Suegama
Federal University of Grande Dourados (UFGD)/ Faculty of Exact Sciences and Technology - Campus II
Eduardo José de Arruda
Federal University of Grande Dourados (UFGD)/ Faculty of Exact Sciences and Technology - Campus II
José Augusto Texeira
Institute of Chemistry, UNESP – State University of São Paulo, Araraquara, SP
Cláudio Teodoro de Carvalho
Federal University of Grande Dourados (UFGD)/ Faculty of Exact Sciences and Technology - Campus II
Published February 28, 2017
Keywords
  • buriti petiole,
  • activated carbon,
  • FT–IR,
  • TG/DTG/FT–IR,
  • SEM,
  • BET
  • ...More
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How to Cite
(1)
de Almeida, C. F.; de Andrade, R. C.; de Oliveira, G. F.; Suegama, P. H.; de Arruda, E. J.; Texeira, J. A.; de Carvalho, C. T. Study of Porosity and Surface Groups of Activated Carbons Produced from Alternative and Renewable Biomass: Buriti Petiole. Orbital: Electron. J. Chem. 2017, 9, 18-26.

Abstract

This study reports the production of activated carbon (AC) from chemical activation with sodium hydroxide in pyrolysis temperature of 500 to 600 °C using alternative and renewable material, Buriti petiole. The characterization of the material was performed by simultaneous thermogravimetry-differential thermal analysis (TG–DTA), scanning electron microscopy (SEM), nitrogen adsorption–desorption isotherms at -196 °C by the BET (Brunauer, Emmett and Teller) and BJH (Barrett, Joyner and Halenda) methods for mesoporous materials. Infrared spectroscopy (FT–IR) and TG/DT–FTIR coupled system were used to study the surface groups. Adsorption tests for the activated carbons samples (ACs) were carried out using the methylene blue (MB) cationic and anionic orange G (OG) dyes, the most satisfactory results were methylene blue dye. These results indicated the formation of mesoporous adsorbent materials with BET surface areas obtained between 340 m2g-1 and 1715 m2g-1. The chemical activation of the carbons with sodium hydroxide produced highly mesoporous material suitable for adsorption of cationic and anionic dyes in aqueous solution.

DOI: http://dx.doi.org/10.17807/orbital.v9i1.878