Skip to main content
Log in

Sustainable activated carbon obtained as a by-product of the sugar and alcohol industry for removal of amoxicillin from aqueous solution

  • Original Article
  • Published:
Energy, Ecology and Environment Aims and scope Submit manuscript

Abstract

The alcohol and sugar industry in Brazil uses a feedstock for sucrose extraction, resulting in waste production, one of them being the sugarcane bagasse. A possible relocation for the use of this residue, produced in millions of tons annually, would be its use in the production of carbonaceous materials, such as activated carbon (AC). The purpose of this study was the production of activated carbon using a faster, simpler and more efficient process with low energy requirements and chemical reagents to obtain a material with a high surface area. The AC samples were prepared by chemical activation with ZnCl2 and carbonization at 600 °C in an oxygen-limiting atmosphere. The average specific surface area of the samples, estimated by the BET method, was 1544 m2 g−1 and the average pore size was 2.6 nm. The surface morphologies of the ACs were characterized using SEM analysis, which showed that the surfaces were irregular, with cracks, pores. The solids were also characterized by FTIR, presenting mainly stretching bands corresponding to O–H, C–O, and C=C groups. EPR analysis showed a resonance line characteristic of an organic free radical with g ~ 2.0031, which is typical of free radicals centered on carbon atoms. The material efficiency for removal of aromatic organic pollutants was evaluated in continuous-flow adsorption tests with the antibiotic amoxicillin. The method provided very satisfactory results, reducing the concentration of the antibiotic from an initial value of 1.37 × 10−3 mol L−1 to about 3.5 × 10−8 mol L−1. The concentration of the antibiotic in water, after adsorption, was therefore reduced by four to five orders of magnitude, confirming the potential application of the materials prepared in this work for the removal of antibiotics residues from the environment.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

Download references

Acknowledgements

Financial support for this work was provided by the Brazilian National Council of Scientific and Technological Development (CNPq, Grant #553338/2010-2).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Juliana Schultz.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Schultz, J., Capobianco, G., da Silva Veiga, P.A. et al. Sustainable activated carbon obtained as a by-product of the sugar and alcohol industry for removal of amoxicillin from aqueous solution. Energ. Ecol. Environ. 5, 433–443 (2020). https://doi.org/10.1007/s40974-020-00173-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40974-020-00173-3

Keywords

Navigation