Skip to main content
Log in

Porosity enhancement of activated carbon by hydrolyzed lignin from black liquor

  • Original Paper
  • Published:
Clean Technologies and Environmental Policy Aims and scope Submit manuscript

Abstract

In this work, the porosity enhancement of activated carbon by hydrolyzed lignin extracted from black liquor was studied. Lignin was treated before activation and carbonization using H2SO4 hydrolysis. The effects of H3PO4 concentration (0–66 wt%) as an impregnation agent and impregnation time (0–12 h) on the activated carbon were investigated. The cadmium adsorption capacity and isotherm were also determined. Results showed that the specific surface area (SSA) of activated carbon increased with increases in H3PO4 concentration and impregnation time. The maximum specific surface area of 1,653 m2 per gram of hydrolyzed lignin was obtained using 66wt% H3PO4, impregnation time of 8 h, and carbonization at 500 °C. The adsorption isotherms of all samples were type-I, based on the International Union of Pure and Applied Chemistry. The pore size distribution of activated carbon prepared from lignin and hydrolyzed lignin without H3PO4 activation fell within the range of micropore. With 66wt% H3PO4 activation, activated carbon prepared from the lignin and the hydrolyzed lignin showed a mesoporous structure. The activated carbon prepared from hydrolyzed lignin in this study enhanced the Brunauer–Emmett–Teller-specific surface area up to 38.44% compared to that of non-hydrolyzed lignin. The maximum adsorption capacity of 9.50 and 9.69 mg of cadmium per gram of activated carbon prepared from lignin and hydrolyzed lignin, respectively, was achieved with 66wt% H3PO4 activation and 1 h of impregnations time. The adsorption isotherms of the cadmium fitted linearly with the Langmuir model. This study thus showed a promising production of highly porous activated carbon from the pulp and paper industry waste through a simple and low-cost method.

Graphical abstract

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
Fig. 8
Fig. 9

Similar content being viewed by others

Data availability

Enquiries about data availability should be directed to the authors.

References

Download references

Acknowledgements

The authors would like to acknowledge the “Support by Research and Graduate Studies” Khon Kaen University. This work was supported by the National Science, Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation [Grant number B05F630052] and Research and Graduate Studies Khon Kaen University, Thailand. The kind suggestion from Mr. Harit Phowatthanasathian is gratefully acknowledged here.

Funding

The authors have not disclosed any funding.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Khanita Kamwilaisak.

Ethics declarations

Competing interests

The authors have not disclosed any competing interests.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 141 KB)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kamwilaisak, K., Siripanee, S., Jutakridsada, P. et al. Porosity enhancement of activated carbon by hydrolyzed lignin from black liquor. Clean Techn Environ Policy 24, 2517–2530 (2022). https://doi.org/10.1007/s10098-022-02331-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10098-022-02331-z

Keywords

Navigation