Version 1
: Received: 21 January 2020 / Approved: 22 January 2020 / Online: 22 January 2020 (03:21:11 CET)
How to cite:
García Díaz, I.; Alguacil, F.J.; Escudero, E.; López, F.A. Evaluation of La (III) and Ce(III) Adsorption from Aqueous Solution Using Carbon Nanotubes Adsorbent. Preprints2020, 2020010254. https://doi.org/10.20944/preprints202001.0254.v1
García Díaz, I.; Alguacil, F.J.; Escudero, E.; López, F.A. Evaluation of La (III) and Ce(III) Adsorption from Aqueous Solution Using Carbon Nanotubes Adsorbent. Preprints 2020, 2020010254. https://doi.org/10.20944/preprints202001.0254.v1
García Díaz, I.; Alguacil, F.J.; Escudero, E.; López, F.A. Evaluation of La (III) and Ce(III) Adsorption from Aqueous Solution Using Carbon Nanotubes Adsorbent. Preprints2020, 2020010254. https://doi.org/10.20944/preprints202001.0254.v1
APA Style
García Díaz, I., Alguacil, F.J., Escudero, E., & López, F.A. (2020). Evaluation of La (III) and Ce(III) Adsorption from Aqueous Solution Using Carbon Nanotubes Adsorbent. Preprints. https://doi.org/10.20944/preprints202001.0254.v1
Chicago/Turabian Style
García Díaz, I., Esther Escudero and Félix A. López. 2020 "Evaluation of La (III) and Ce(III) Adsorption from Aqueous Solution Using Carbon Nanotubes Adsorbent" Preprints. https://doi.org/10.20944/preprints202001.0254.v1
Abstract
Since the 1960s Rare earths (REs) applications gradually have expanded to everyday life. REs have great strategic importance in industrial and technological development, so it is expected an increase in their demand. Among the REs the European Commission considered Cerium and Lanthanum as critical raw materials. This research article studies the adsorption of Ce and La onto two carbon nanomaterials, multiwalled carbon nanotubes (MWCNT) and carboxylic functionalized multiwalled carbon nanotubes (MWCNT_ox). The latter has slightly more affinity for REs than MWCNT. The recovery percentage for Ce were 89 and 98% and in the case of for La were 99 and 92% using 0.8 g of MWCNT and 0.2 g of MWCNT_ox respectively. The adsorption process fits a pseudo second-order kinetic model and the Langmuir isotherm best represented the metal uptake.
Chemistry and Materials Science, Metals, Alloys and Metallurgy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
