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Enhanced CO(2) Adsorption by Nitrogen-Doped Graphene Oxide Sheets (N-GOs) Prepared by Employing Polymeric Precursors

Nitrogen-doped graphene oxide sheets (N-GOs) are prepared by employing N-containing polymers such as polypyrrole, polyaniline, and copolymer (polypyrrole-polyaniline) doped with acids such as HCl, H(2)SO(4), and C(6)H(5)-SO(3)-K, which are activated using different concentrations of KOH and carboniz...

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Autores principales: Alghamdi, Abdulaziz Ali, Alshahrani, Abdullah Fhead, Khdary, Nezar H., Alharthi, Fahad A., Alattas, Hussain Ali, Adil, Syed Farooq
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951462/
https://www.ncbi.nlm.nih.gov/pubmed/29642572
http://dx.doi.org/10.3390/ma11040578
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author Alghamdi, Abdulaziz Ali
Alshahrani, Abdullah Fhead
Khdary, Nezar H.
Alharthi, Fahad A.
Alattas, Hussain Ali
Adil, Syed Farooq
author_facet Alghamdi, Abdulaziz Ali
Alshahrani, Abdullah Fhead
Khdary, Nezar H.
Alharthi, Fahad A.
Alattas, Hussain Ali
Adil, Syed Farooq
author_sort Alghamdi, Abdulaziz Ali
collection PubMed
description Nitrogen-doped graphene oxide sheets (N-GOs) are prepared by employing N-containing polymers such as polypyrrole, polyaniline, and copolymer (polypyrrole-polyaniline) doped with acids such as HCl, H(2)SO(4), and C(6)H(5)-SO(3)-K, which are activated using different concentrations of KOH and carbonized at 650 °C; characterized using SEM, TEM, BET, TGA-DSC, XRD, and XPS; and employed for the removal of environmental pollutant CO(2). The porosity of the N-GOs obtained were found to be in the range 1–3.5 nm when the KOH employed was in the ratio of 1:4, and the XRD confirmed the formation of the layered like structure. However, when the KOH employed was in the ratio of 1:2, the pore diameter was found to be in the range of 50–200 nm. The SEM and TEM analysis reveal the porosity and sheet-like structure of the products obtained. The nitrogen-doped graphene oxide sheets (N-GOs) prepared by employing polypyrrole doped with C(6)H(5)-SO(3)-K were found to possess a high surface area of 2870 m(2)/g. The N-GOs displayed excellent CO(2) capture property with the N-GOs; PPy/Ar-1 displayed ~1.36 mmol/g. The precursor employed, the dopant used, and the activation process were found to affect the adsorption property of the N-GOs obtained. The preparation procedure is simple and favourable for the synthesis of N-GOs for their application as adsorbents in greenhouse gas removal and capture.
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spelling pubmed-59514622018-05-15 Enhanced CO(2) Adsorption by Nitrogen-Doped Graphene Oxide Sheets (N-GOs) Prepared by Employing Polymeric Precursors Alghamdi, Abdulaziz Ali Alshahrani, Abdullah Fhead Khdary, Nezar H. Alharthi, Fahad A. Alattas, Hussain Ali Adil, Syed Farooq Materials (Basel) Article Nitrogen-doped graphene oxide sheets (N-GOs) are prepared by employing N-containing polymers such as polypyrrole, polyaniline, and copolymer (polypyrrole-polyaniline) doped with acids such as HCl, H(2)SO(4), and C(6)H(5)-SO(3)-K, which are activated using different concentrations of KOH and carbonized at 650 °C; characterized using SEM, TEM, BET, TGA-DSC, XRD, and XPS; and employed for the removal of environmental pollutant CO(2). The porosity of the N-GOs obtained were found to be in the range 1–3.5 nm when the KOH employed was in the ratio of 1:4, and the XRD confirmed the formation of the layered like structure. However, when the KOH employed was in the ratio of 1:2, the pore diameter was found to be in the range of 50–200 nm. The SEM and TEM analysis reveal the porosity and sheet-like structure of the products obtained. The nitrogen-doped graphene oxide sheets (N-GOs) prepared by employing polypyrrole doped with C(6)H(5)-SO(3)-K were found to possess a high surface area of 2870 m(2)/g. The N-GOs displayed excellent CO(2) capture property with the N-GOs; PPy/Ar-1 displayed ~1.36 mmol/g. The precursor employed, the dopant used, and the activation process were found to affect the adsorption property of the N-GOs obtained. The preparation procedure is simple and favourable for the synthesis of N-GOs for their application as adsorbents in greenhouse gas removal and capture. MDPI 2018-04-10 /pmc/articles/PMC5951462/ /pubmed/29642572 http://dx.doi.org/10.3390/ma11040578 Text en © 2018 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
Alghamdi, Abdulaziz Ali
Alshahrani, Abdullah Fhead
Khdary, Nezar H.
Alharthi, Fahad A.
Alattas, Hussain Ali
Adil, Syed Farooq
Enhanced CO(2) Adsorption by Nitrogen-Doped Graphene Oxide Sheets (N-GOs) Prepared by Employing Polymeric Precursors
title Enhanced CO(2) Adsorption by Nitrogen-Doped Graphene Oxide Sheets (N-GOs) Prepared by Employing Polymeric Precursors
title_full Enhanced CO(2) Adsorption by Nitrogen-Doped Graphene Oxide Sheets (N-GOs) Prepared by Employing Polymeric Precursors
title_fullStr Enhanced CO(2) Adsorption by Nitrogen-Doped Graphene Oxide Sheets (N-GOs) Prepared by Employing Polymeric Precursors
title_full_unstemmed Enhanced CO(2) Adsorption by Nitrogen-Doped Graphene Oxide Sheets (N-GOs) Prepared by Employing Polymeric Precursors
title_short Enhanced CO(2) Adsorption by Nitrogen-Doped Graphene Oxide Sheets (N-GOs) Prepared by Employing Polymeric Precursors
title_sort enhanced co(2) adsorption by nitrogen-doped graphene oxide sheets (n-gos) prepared by employing polymeric precursors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951462/
https://www.ncbi.nlm.nih.gov/pubmed/29642572
http://dx.doi.org/10.3390/ma11040578
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