Utilization of Waste Amine-Oxime (WAO) Resin to Generate Carbon by Microwave and Its Removal of Pb(II) in Water

Utilising waste amine-oxime (WAO) resin through microwave semi-carbonization, a carbon adsorbent (CA) was obtained to remove Pb(II). After microwave treatment, the pore size of the skeleton structure, three-dimensional porous network, and lamellar pore structure of WAO was improved. The distribution...

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Autores principales: He, Chunlin, Liu, Yun, Zheng, Chunhui, Jiang, Yanming, Liao, Yan, Huang, Jiaxin, Fujita, Toyohisa, Wei, Yuezhou, Ma, Shaojian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9504436/
https://www.ncbi.nlm.nih.gov/pubmed/36136454
http://dx.doi.org/10.3390/toxics10090489
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author He, Chunlin
Liu, Yun
Zheng, Chunhui
Jiang, Yanming
Liao, Yan
Huang, Jiaxin
Fujita, Toyohisa
Wei, Yuezhou
Ma, Shaojian
author_facet He, Chunlin
Liu, Yun
Zheng, Chunhui
Jiang, Yanming
Liao, Yan
Huang, Jiaxin
Fujita, Toyohisa
Wei, Yuezhou
Ma, Shaojian
author_sort He, Chunlin
collection PubMed
description Utilising waste amine-oxime (WAO) resin through microwave semi-carbonization, a carbon adsorbent (CA) was obtained to remove Pb(II). After microwave treatment, the pore size of the skeleton structure, three-dimensional porous network, and lamellar pore structure of WAO was improved. The distribution coefficient (Kd) of Pb(II) onto CA is 620 mL/g, and the maximum adsorption capacity of Pb(II) is 82.67 mg/g after 20 min of WAO microwave treatment. The adsorption kinetics and adsorption isotherms conform to the quasi-second-order kinetic equation and Langmuir adsorption isotherm model, respectively. The surface of MT-WAO is negatively charged and the adsorption mechanism is mainly electrostatic interaction. Pb(II) elution in hydrochloric acid solution is more than 98%, and its recovery is high at 318 K and for 1 h.
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spelling pubmed-95044362022-09-24 Utilization of Waste Amine-Oxime (WAO) Resin to Generate Carbon by Microwave and Its Removal of Pb(II) in Water He, Chunlin Liu, Yun Zheng, Chunhui Jiang, Yanming Liao, Yan Huang, Jiaxin Fujita, Toyohisa Wei, Yuezhou Ma, Shaojian Toxics Article Utilising waste amine-oxime (WAO) resin through microwave semi-carbonization, a carbon adsorbent (CA) was obtained to remove Pb(II). After microwave treatment, the pore size of the skeleton structure, three-dimensional porous network, and lamellar pore structure of WAO was improved. The distribution coefficient (Kd) of Pb(II) onto CA is 620 mL/g, and the maximum adsorption capacity of Pb(II) is 82.67 mg/g after 20 min of WAO microwave treatment. The adsorption kinetics and adsorption isotherms conform to the quasi-second-order kinetic equation and Langmuir adsorption isotherm model, respectively. The surface of MT-WAO is negatively charged and the adsorption mechanism is mainly electrostatic interaction. Pb(II) elution in hydrochloric acid solution is more than 98%, and its recovery is high at 318 K and for 1 h. MDPI 2022-08-23 /pmc/articles/PMC9504436/ /pubmed/36136454 http://dx.doi.org/10.3390/toxics10090489 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
He, Chunlin
Liu, Yun
Zheng, Chunhui
Jiang, Yanming
Liao, Yan
Huang, Jiaxin
Fujita, Toyohisa
Wei, Yuezhou
Ma, Shaojian
Utilization of Waste Amine-Oxime (WAO) Resin to Generate Carbon by Microwave and Its Removal of Pb(II) in Water
title Utilization of Waste Amine-Oxime (WAO) Resin to Generate Carbon by Microwave and Its Removal of Pb(II) in Water
title_full Utilization of Waste Amine-Oxime (WAO) Resin to Generate Carbon by Microwave and Its Removal of Pb(II) in Water
title_fullStr Utilization of Waste Amine-Oxime (WAO) Resin to Generate Carbon by Microwave and Its Removal of Pb(II) in Water
title_full_unstemmed Utilization of Waste Amine-Oxime (WAO) Resin to Generate Carbon by Microwave and Its Removal of Pb(II) in Water
title_short Utilization of Waste Amine-Oxime (WAO) Resin to Generate Carbon by Microwave and Its Removal of Pb(II) in Water
title_sort utilization of waste amine-oxime (wao) resin to generate carbon by microwave and its removal of pb(ii) in water
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9504436/
https://www.ncbi.nlm.nih.gov/pubmed/36136454
http://dx.doi.org/10.3390/toxics10090489
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