Skip to main content

Advertisement

Log in

Triclosan Removal on a MgAl Hydrotalcite and its Calcined Product

  • Published:
Water, Air, & Soil Pollution Aims and scope Submit manuscript

Abstract

In this study, a hydrotalcite (HT MgAl) was synthesized by coprecipitation at a constant pH. Its mixed oxide (HTC MgAl) was obtained for the removal of triclosan (TCS). The two materials were characterized by Scanning Electron Microscopy (SEM), X-ray Dispersive Spectroscopy (EDS), X-Ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR). Measurements of N2 physisorption and Point of Zero Charge (pHPZC) were also analyzed. TCS removal was investigated in terms of pH, adsorption kinetics, adsorption isotherms, and temperature. The HT MgAl material presented the typical morphology and crystalline structure of a hydrotalcite composed of C, O, Al, and Mg. This material is classified as a mesoporous material with a specific surface area of 114.92 m2/g and a pHPZC of 8.82. On the other hand, HTC MgAl material is a MgAl oxide with a surface area of 140 m2/g and a pHPZC of 11.06. Adsorption results showed that the highest adsorption capacity was obtained at pH 9.0 and at an equilibrium time of 24 h in both materials. The experimental kinetic and isotherm data were well-adjusted to the pseudo-first order and Freundlich models, respectively. This indicates a physisorption mechanism on heterogeneous materials. Therefore, the adsorption of TCS into the HT MgAl material was by way of ion exchange. On the other hand, the adsorption of TCS into the HTC MgAl material was by way of ion exchange and TCS intercalation by the reconstruction of the material. The TCS adsorption process was exothermic, and not spontaneous; hence, randomness was reduced.

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

Similar content being viewed by others

Availability of Data and Materials

All data generated or analyzed during this study are included in this published and supplementary information files.

Code Availability

Not applicable.

References

Download references

Funding

The authors are grateful for the financial support from the National Technological Institute of Mexico (TecNM), the LIIA Instituto Tecnológico de Toluca (ITTol), and the CONACYT postdoctoral scholarship No. 003632 awarded to Sonia Alvarez García CVU 553982.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Sonia Alvarez-García.

Ethics declarations

Conflict of Interest

The authors declare no competing interests.

Additional information

Publisher's Note

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

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Macedo-Miranda, G., Martínez-Gallegos, S., Ordoñez-Regíl, E. et al. Triclosan Removal on a MgAl Hydrotalcite and its Calcined Product. Water Air Soil Pollut 233, 47 (2022). https://doi.org/10.1007/s11270-022-05521-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s11270-022-05521-z

Keywords

Navigation