Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Wei, Yi, Chen, Wei, Liu, Chuanfu, Wang, Huihui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
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
_version_ 1783665325199327232
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
work_keys_str_mv AT weiyi facialsynthesisofadsorbentfromhemicellulosesforcrviadsorption
AT chenwei facialsynthesisofadsorbentfromhemicellulosesforcrviadsorption
AT liuchuanfu facialsynthesisofadsorbentfromhemicellulosesforcrviadsorption
AT wanghuihui facialsynthesisofadsorbentfromhemicellulosesforcrviadsorption