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Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption
It is challenging work to develop a low-cost, efficient, and environmentally friendly Cr(VI) adsorbent for waste water treatment. In this paper, we used hemicelluloses from chemical fiber factory waste as the raw material, and prepared two kinds of carbon materials by the green hydrothermal method a...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7961731/ https://www.ncbi.nlm.nih.gov/pubmed/33799950 http://dx.doi.org/10.3390/molecules26051443 |
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author | Wei, Yi Chen, Wei Liu, Chuanfu Wang, Huihui |
author_facet | Wei, Yi Chen, Wei Liu, Chuanfu Wang, Huihui |
author_sort | Wei, Yi |
collection | PubMed |
description | It is challenging work to develop a low-cost, efficient, and environmentally friendly Cr(VI) adsorbent for waste water treatment. In this paper, we used hemicelluloses from chemical fiber factory waste as the raw material, and prepared two kinds of carbon materials by the green hydrothermal method as adsorbent for Cr(VI). The results showed that hemicelluloses hydrothermally treated with citric acid (HTC) presented spherical shapes, and hemicelluloses hydrothermally treated with ammonia solution (HTC-NH(2)) provided spongy structures. The adsorption capacity of the samples can be obtained by the Langmuir model, and the adsorption kinetics could be described by the pseudo-second-order model at pH 1.0. The maximum adsorption capacity of HTC-NH(2) in the Langmuir model is 74.60 mg/g, much higher than that of HTC (61.25 mg/g). The green hydrothermal treatment of biomass with ammonia solution will provide a simple and feasible way to prepare adsorbent for Cr(VI) in waste water treatment. |
format | Online Article Text |
id | pubmed-7961731 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79617312021-03-17 Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption Wei, Yi Chen, Wei Liu, Chuanfu Wang, Huihui Molecules Article It is challenging work to develop a low-cost, efficient, and environmentally friendly Cr(VI) adsorbent for waste water treatment. In this paper, we used hemicelluloses from chemical fiber factory waste as the raw material, and prepared two kinds of carbon materials by the green hydrothermal method as adsorbent for Cr(VI). The results showed that hemicelluloses hydrothermally treated with citric acid (HTC) presented spherical shapes, and hemicelluloses hydrothermally treated with ammonia solution (HTC-NH(2)) provided spongy structures. The adsorption capacity of the samples can be obtained by the Langmuir model, and the adsorption kinetics could be described by the pseudo-second-order model at pH 1.0. The maximum adsorption capacity of HTC-NH(2) in the Langmuir model is 74.60 mg/g, much higher than that of HTC (61.25 mg/g). The green hydrothermal treatment of biomass with ammonia solution will provide a simple and feasible way to prepare adsorbent for Cr(VI) in waste water treatment. MDPI 2021-03-07 /pmc/articles/PMC7961731/ /pubmed/33799950 http://dx.doi.org/10.3390/molecules26051443 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wei, Yi Chen, Wei Liu, Chuanfu Wang, Huihui Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption |
title | Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption |
title_full | Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption |
title_fullStr | Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption |
title_full_unstemmed | Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption |
title_short | Facial Synthesis of Adsorbent from Hemicelluloses for Cr(VI) Adsorption |
title_sort | facial synthesis of adsorbent from hemicelluloses for cr(vi) adsorption |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7961731/ https://www.ncbi.nlm.nih.gov/pubmed/33799950 http://dx.doi.org/10.3390/molecules26051443 |
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