The Use of Pyrolytic Char Derived from Waste Tires in the Removal of Malachite Green from Dyeing Wastewater

The organic dye malachite green (MG) poses a potential risk of cancer and fertility loss in humans and aquatic organisms. This study focused on a modified pyrolytic char (PC) derived from waste tires to efficiently remove MG from wastewater. Modified PC has rich -OH functional groups, higher BET (Br...

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Autores principales: Ji, Dongliang, Gai, Didi, Xu, Yikun, Huang, Zhaoqin, Zhao, Peitao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9740729/
https://www.ncbi.nlm.nih.gov/pubmed/36500948
http://dx.doi.org/10.3390/nano12234325
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author Ji, Dongliang
Gai, Didi
Xu, Yikun
Huang, Zhaoqin
Zhao, Peitao
author_facet Ji, Dongliang
Gai, Didi
Xu, Yikun
Huang, Zhaoqin
Zhao, Peitao
author_sort Ji, Dongliang
collection PubMed
description The organic dye malachite green (MG) poses a potential risk of cancer and fertility loss in humans and aquatic organisms. This study focused on a modified pyrolytic char (PC) derived from waste tires to efficiently remove MG from wastewater. Modified PC has rich -OH functional groups, higher BET (Brunauer-Emmett-Teller) surfaces of 74.4, 64.95, and 67.31 m(2)/g, and larger pore volumes of 0.52, 0.47, and 0.62 cm(3)/g for NaOH, Na(2)CO(3), and CaO modification, respectively. The pseudo-second-order model fit the adsorption well, and the maximum equilibrium adsorption capacity was 937.8 mg/g for PC after CaO activation (CaO-PC). NaOH-modified PC (NaOH-PC) showed the best fit with the Langmuir model (R(2) = 0.918). It is suggested that alkali-modified waste tire pyrolytic char could be a potential adsorbent for removing MG from dye-containing wastewater.
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spelling pubmed-97407292022-12-11 The Use of Pyrolytic Char Derived from Waste Tires in the Removal of Malachite Green from Dyeing Wastewater Ji, Dongliang Gai, Didi Xu, Yikun Huang, Zhaoqin Zhao, Peitao Nanomaterials (Basel) Article The organic dye malachite green (MG) poses a potential risk of cancer and fertility loss in humans and aquatic organisms. This study focused on a modified pyrolytic char (PC) derived from waste tires to efficiently remove MG from wastewater. Modified PC has rich -OH functional groups, higher BET (Brunauer-Emmett-Teller) surfaces of 74.4, 64.95, and 67.31 m(2)/g, and larger pore volumes of 0.52, 0.47, and 0.62 cm(3)/g for NaOH, Na(2)CO(3), and CaO modification, respectively. The pseudo-second-order model fit the adsorption well, and the maximum equilibrium adsorption capacity was 937.8 mg/g for PC after CaO activation (CaO-PC). NaOH-modified PC (NaOH-PC) showed the best fit with the Langmuir model (R(2) = 0.918). It is suggested that alkali-modified waste tire pyrolytic char could be a potential adsorbent for removing MG from dye-containing wastewater. MDPI 2022-12-05 /pmc/articles/PMC9740729/ /pubmed/36500948 http://dx.doi.org/10.3390/nano12234325 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
Ji, Dongliang
Gai, Didi
Xu, Yikun
Huang, Zhaoqin
Zhao, Peitao
The Use of Pyrolytic Char Derived from Waste Tires in the Removal of Malachite Green from Dyeing Wastewater
title The Use of Pyrolytic Char Derived from Waste Tires in the Removal of Malachite Green from Dyeing Wastewater
title_full The Use of Pyrolytic Char Derived from Waste Tires in the Removal of Malachite Green from Dyeing Wastewater
title_fullStr The Use of Pyrolytic Char Derived from Waste Tires in the Removal of Malachite Green from Dyeing Wastewater
title_full_unstemmed The Use of Pyrolytic Char Derived from Waste Tires in the Removal of Malachite Green from Dyeing Wastewater
title_short The Use of Pyrolytic Char Derived from Waste Tires in the Removal of Malachite Green from Dyeing Wastewater
title_sort use of pyrolytic char derived from waste tires in the removal of malachite green from dyeing wastewater
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9740729/
https://www.ncbi.nlm.nih.gov/pubmed/36500948
http://dx.doi.org/10.3390/nano12234325
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