Skip to main content
Log in

Adsorption of anionic and cationic dyes in aqueous solution by a sustainable and low-cost activated carbon based on argan solid waste treated with H3PO4

  • New Advanced Water Treatment Techniques and Pollution Assessment
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

The objective of this work is to study the adsorption capacity of a natural and low-cost material prepared from argan waste treated with H3PO4 towards two dyes of different molecular charges and presenting an acute toxicity, the methyl orange (MO, anionic dye) and the methylene blue (MB, cationic dye). The prepared adsorbent was characterized by SEM, EDX, FTIR, and BET specific surface. These analyses showed the presence of C (42%), O (55%), and P (3%) and a remarkable difference between the morphology of the precursor and that of the obtained material with a specific surface of 475 m2/g and a very porous structure as well as the main functional groups, O–H, C=O, and C–H. The influence of the pH showed a maximum adsorption at pH =2 for MO and at pH = 10 for MB. Investigation of the effect of time on the adsorption of anionic and cationic dyes revealed that the contact time at equilibrium was 240 and 180 min, respectively. The isotherms that best fit the adsorption of MO and MB are the Langmuir model and the Freundlich model respectively. The kinetic study showed that the experimental data are in agreement with the pseudo-second-order model. Regeneration of the saturated material was also studied for the probability of reusing the adsorbent in many experiments. The valorization of argan waste into activated carbon using H3PO4 has allowed to obtain an effective adsorbent for the removal of anionic and cationic dyes and create an added value for environmental sustainability.

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

Data Availability

The data sets used and/or analyzed during this study are available from the corresponding author upon reasonable request.

Abbreviations

MO:

Methyl orange

MB:

Methylene blue

SEM:

Scanning electron microscopy

EDX:

Energy dispersive X-ray

FTIR:

Fourier-transform infrared

BET:

Brunauer-Emmett-Teller

AS:

Argan shells

AC:

Activated carbon

ACAW:

Activated carbon from argan waste

ASC:

Argan shells carbonized

q e (mg/g) :

Adsorbed quantity at equilibrium

T (%):

The adsorption rate

C 0 (mg/L) :

The initial concentration of the solution

C t (mg/L) :

The concentration of the solution at time t

v (L) :

The volume of the solution

w (g) :

The mass of ACAW

C e (mg/L) :

The equilibrium solution concentration

q m (mg/g) :

The maximum adsorption amount

R L :

The dimensionless separation

K L (L/mg) :

The Langmuir isotherm constant

K F (L/mg) and n:

The Freundlich adsorption constants

A (L/mg), B (J/mol), and b :

The Temkin isotherm constants

R (8.314 J/mol K) :

The universal gas constant

T (K) :

The absolute temperature

K DR (mol2/kJ2) :

The Constant of the Dubinin–Radushkevich isotherm

ε(J/mol) :

The adsorption potential

References

Download references

Funding

Not applicable.

Author information

Authors and Affiliations

Authors

Contributions

This work is the result of collaboration among all authors. Abdessamad Ouedrhiri: conceptualization, investigation, writing—original draft. Mohamed Ennably and Said Alougayl: methodology, visualization, writing. Boubaker Youbi, Abderrafie Kettani Halabi, and Mostafa Khoukhi: validation, visualization. Mohammed Chafi: formal analysis and validation. Youssef Lghazi and Itto Bimaghra: supervision, validation, writing—review and editing. All authors approved the final manuscript.

Corresponding author

Correspondence to Abdessamad Ouedrhiri.

Ethics declarations

Ethical approval

This manuscript was prepared in accordance with ethical standards.

Consent to participate

The authors have voluntarily agreed to participate in this research study.

Consent to publish

The authors agree to publish the article in Environmental Science and Pollution Research.

Competing interests

The authors declare no competing interests.

Additional information

Responsible Editor: Tito Roberto Cadaval Jr

Publisher’s note

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

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ouedrhiri, A., Ennabely, M., Lghazi, Y. et al. Adsorption of anionic and cationic dyes in aqueous solution by a sustainable and low-cost activated carbon based on argan solid waste treated with H3PO4. Environ Sci Pollut Res (2023). https://doi.org/10.1007/s11356-023-26550-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s11356-023-26550-z

Keywords

Navigation