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Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb(2+) and Cu(2+)

[Image: see text] Removing heavy metal ions from water is an important issue to improve water quality. However, using cost-effective and more environmentally friendly adsorbents to achieve efficient adsorption capacity remains a challenge. Carbon spheres were prepared by the hydrothermal method and...

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Autores principales: Bai, Lisen, Zhou, Yongyan, Zhang, Peng, Li, Suqin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8756795/
https://www.ncbi.nlm.nih.gov/pubmed/35036705
http://dx.doi.org/10.1021/acsomega.1c04746
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author Bai, Lisen
Zhou, Yongyan
Zhang, Peng
Li, Suqin
author_facet Bai, Lisen
Zhou, Yongyan
Zhang, Peng
Li, Suqin
author_sort Bai, Lisen
collection PubMed
description [Image: see text] Removing heavy metal ions from water is an important issue to improve water quality. However, using cost-effective and more environmentally friendly adsorbents to achieve efficient adsorption capacity remains a challenge. Carbon spheres were prepared by the hydrothermal method and then combined with sodium lignosulfonate to form a lignosulfonate carbon (C/SL) adsorbent. C/SL achieved the adsorption of Pb(2+) and Cu(2+) after 60 min (the adsorption capacity was 281 mg g(–1) for Pb(2+) and 276mg g(–1) for Cu(2+)) and had good selectivity and reusability (5 cycles). The simulated experimental data show that the pseudo-second-order kinetics and Langmuir isotherm are closer to the actual adsorption. Thermodynamic studies show that the adsorption of Pb(2+) and Cu(2+) is enhanced by the spontaneous process at higher temperature. This study also shows that functional groups such as hydroxyl and amino groups play an important role in the adsorption process.
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spelling pubmed-87567952022-01-13 Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb(2+) and Cu(2+) Bai, Lisen Zhou, Yongyan Zhang, Peng Li, Suqin ACS Omega [Image: see text] Removing heavy metal ions from water is an important issue to improve water quality. However, using cost-effective and more environmentally friendly adsorbents to achieve efficient adsorption capacity remains a challenge. Carbon spheres were prepared by the hydrothermal method and then combined with sodium lignosulfonate to form a lignosulfonate carbon (C/SL) adsorbent. C/SL achieved the adsorption of Pb(2+) and Cu(2+) after 60 min (the adsorption capacity was 281 mg g(–1) for Pb(2+) and 276mg g(–1) for Cu(2+)) and had good selectivity and reusability (5 cycles). The simulated experimental data show that the pseudo-second-order kinetics and Langmuir isotherm are closer to the actual adsorption. Thermodynamic studies show that the adsorption of Pb(2+) and Cu(2+) is enhanced by the spontaneous process at higher temperature. This study also shows that functional groups such as hydroxyl and amino groups play an important role in the adsorption process. American Chemical Society 2021-12-20 /pmc/articles/PMC8756795/ /pubmed/35036705 http://dx.doi.org/10.1021/acsomega.1c04746 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Bai, Lisen
Zhou, Yongyan
Zhang, Peng
Li, Suqin
Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb(2+) and Cu(2+)
title Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb(2+) and Cu(2+)
title_full Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb(2+) and Cu(2+)
title_fullStr Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb(2+) and Cu(2+)
title_full_unstemmed Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb(2+) and Cu(2+)
title_short Construction of a Carbon/Lignosulfonate Adsorbent to Remove Pb(2+) and Cu(2+)
title_sort construction of a carbon/lignosulfonate adsorbent to remove pb(2+) and cu(2+)
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8756795/
https://www.ncbi.nlm.nih.gov/pubmed/35036705
http://dx.doi.org/10.1021/acsomega.1c04746
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