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Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin

Herein, to assess the adsorption capability and elucidate the adsorption mechanism of Cd(II) from the aqueous phase, virgin lignin (Lig) and calcined lignin (Lig200, Lig400, Lig600, Lig800, and Lig1000) were prepared. The characteristics, including specific surface area and pore volume of adsorbents...

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Autores principales: Ogata, Fumihiko, Nagahashi, Eri, Miki, Hirona, Saenjum, Chalermpong, Nakamura, Takehiro, Kawasaki, Naohito
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7322691/
https://www.ncbi.nlm.nih.gov/pubmed/32617421
http://dx.doi.org/10.1016/j.heliyon.2020.e04298
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author Ogata, Fumihiko
Nagahashi, Eri
Miki, Hirona
Saenjum, Chalermpong
Nakamura, Takehiro
Kawasaki, Naohito
author_facet Ogata, Fumihiko
Nagahashi, Eri
Miki, Hirona
Saenjum, Chalermpong
Nakamura, Takehiro
Kawasaki, Naohito
author_sort Ogata, Fumihiko
collection PubMed
description Herein, to assess the adsorption capability and elucidate the adsorption mechanism of Cd(II) from the aqueous phase, virgin lignin (Lig) and calcined lignin (Lig200, Lig400, Lig600, Lig800, and Lig1000) were prepared. The characteristics, including specific surface area and pore volume of adsorbents, were investigated, and the adsorption capability along with the effect of temperature, contact time, and pH on the adsorption of Cd(II) were evaluated. The characteristics of the adsorbent surface were related to the adsorption capability of Cd(II) from the aqueous phase, and the correlation coefficients between the adsorbed amount and specific surface area and total pore volumes were 0.872 and 0.960, respectively. Moreover, the amount adsorbed using Lig800 (91.3 mg/g) was higher than that using other adsorbent samples. The adsorption mechanism was elucidated to investigate the binding energy and elemental distribution before and after Cd(II) adsorption. Finally, the desorption capability of Cd(II) from Lig800 using a hydrochloric acid solution was demonstrated. Results obtained herein suggest that Lig800 is a potential candidate for the removal of Cd(II).
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spelling pubmed-73226912020-07-01 Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin Ogata, Fumihiko Nagahashi, Eri Miki, Hirona Saenjum, Chalermpong Nakamura, Takehiro Kawasaki, Naohito Heliyon Article Herein, to assess the adsorption capability and elucidate the adsorption mechanism of Cd(II) from the aqueous phase, virgin lignin (Lig) and calcined lignin (Lig200, Lig400, Lig600, Lig800, and Lig1000) were prepared. The characteristics, including specific surface area and pore volume of adsorbents, were investigated, and the adsorption capability along with the effect of temperature, contact time, and pH on the adsorption of Cd(II) were evaluated. The characteristics of the adsorbent surface were related to the adsorption capability of Cd(II) from the aqueous phase, and the correlation coefficients between the adsorbed amount and specific surface area and total pore volumes were 0.872 and 0.960, respectively. Moreover, the amount adsorbed using Lig800 (91.3 mg/g) was higher than that using other adsorbent samples. The adsorption mechanism was elucidated to investigate the binding energy and elemental distribution before and after Cd(II) adsorption. Finally, the desorption capability of Cd(II) from Lig800 using a hydrochloric acid solution was demonstrated. Results obtained herein suggest that Lig800 is a potential candidate for the removal of Cd(II). Elsevier 2020-06-25 /pmc/articles/PMC7322691/ /pubmed/32617421 http://dx.doi.org/10.1016/j.heliyon.2020.e04298 Text en © 2020 The Author(s) http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ogata, Fumihiko
Nagahashi, Eri
Miki, Hirona
Saenjum, Chalermpong
Nakamura, Takehiro
Kawasaki, Naohito
Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin
title Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin
title_full Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin
title_fullStr Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin
title_full_unstemmed Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin
title_short Assessment of Cd(II) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin
title_sort assessment of cd(ii) adsorption capability and mechanism from aqueous phase using virgin and calcined lignin
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7322691/
https://www.ncbi.nlm.nih.gov/pubmed/32617421
http://dx.doi.org/10.1016/j.heliyon.2020.e04298
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