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One-Pot Synthesis of Cellulose/MXene/PVA Foam for Efficient Methylene Blue Removal

Ti(3)C(2)T(x) MXene has attracted considerable interest as a new emerging two-dimensional material for environmental remediation due to its high adsorption capacity. However, its use is greatly limited by its poor mechanical properties, low processability and recyclability, and the low dispersity of...

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Autores principales: Zhao, Weisong, Chi, Hong, Zhang, Shiyun, Zhang, Xue, Li, Tianduo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268378/
https://www.ncbi.nlm.nih.gov/pubmed/35807488
http://dx.doi.org/10.3390/molecules27134243
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author Zhao, Weisong
Chi, Hong
Zhang, Shiyun
Zhang, Xue
Li, Tianduo
author_facet Zhao, Weisong
Chi, Hong
Zhang, Shiyun
Zhang, Xue
Li, Tianduo
author_sort Zhao, Weisong
collection PubMed
description Ti(3)C(2)T(x) MXene has attracted considerable interest as a new emerging two-dimensional material for environmental remediation due to its high adsorption capacity. However, its use is greatly limited by its poor mechanical properties, low processability and recyclability, and the low dispersity of such powder materials. In this work, a porous adsorbent (C–CMP) containing cellulose nanocrystals (CNC), Ti(3)C(2)T(x) MXene and polyvinyl alcohol (PVA) was prepared by a simple and environmentally-friendly foaming method. Glutaraldehyde was used as crosslinker to improve the mechanical properties and boost the adsorption efficiency of methylene blue (MB) molecules. Fourier transform infrared (FT–IR), elemental analysis (EDX) and thermogravimetric analysis (TGA) further confirmed that the preparation of the C–CMP foam and cross-linking reaction were successful. Scanning electron microscope (SEM) indicated that the macropores were distributed homogeneously. The adsorption experiment showed that maximum adsorption capacity of MB can reach 239.92 mg·g(−1) which was much higher than anionic dye (methyl orange, 45.25 mg·g(−1)). The adsorption behavior fitted well with the Langmuir isotherm and pseudo-second-order kinetic models. Thermodynamic analysis indicated that the adsorption process was spontaneous and endothermic. Based on FT–IR, EDX and X-ray photoelectron spectroscopy (XPS) analysis, the adsorption mechanism between C–CMP and MB molecules was attributed to electrostatic interaction.
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spelling pubmed-92683782022-07-09 One-Pot Synthesis of Cellulose/MXene/PVA Foam for Efficient Methylene Blue Removal Zhao, Weisong Chi, Hong Zhang, Shiyun Zhang, Xue Li, Tianduo Molecules Article Ti(3)C(2)T(x) MXene has attracted considerable interest as a new emerging two-dimensional material for environmental remediation due to its high adsorption capacity. However, its use is greatly limited by its poor mechanical properties, low processability and recyclability, and the low dispersity of such powder materials. In this work, a porous adsorbent (C–CMP) containing cellulose nanocrystals (CNC), Ti(3)C(2)T(x) MXene and polyvinyl alcohol (PVA) was prepared by a simple and environmentally-friendly foaming method. Glutaraldehyde was used as crosslinker to improve the mechanical properties and boost the adsorption efficiency of methylene blue (MB) molecules. Fourier transform infrared (FT–IR), elemental analysis (EDX) and thermogravimetric analysis (TGA) further confirmed that the preparation of the C–CMP foam and cross-linking reaction were successful. Scanning electron microscope (SEM) indicated that the macropores were distributed homogeneously. The adsorption experiment showed that maximum adsorption capacity of MB can reach 239.92 mg·g(−1) which was much higher than anionic dye (methyl orange, 45.25 mg·g(−1)). The adsorption behavior fitted well with the Langmuir isotherm and pseudo-second-order kinetic models. Thermodynamic analysis indicated that the adsorption process was spontaneous and endothermic. Based on FT–IR, EDX and X-ray photoelectron spectroscopy (XPS) analysis, the adsorption mechanism between C–CMP and MB molecules was attributed to electrostatic interaction. MDPI 2022-06-30 /pmc/articles/PMC9268378/ /pubmed/35807488 http://dx.doi.org/10.3390/molecules27134243 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
Zhao, Weisong
Chi, Hong
Zhang, Shiyun
Zhang, Xue
Li, Tianduo
One-Pot Synthesis of Cellulose/MXene/PVA Foam for Efficient Methylene Blue Removal
title One-Pot Synthesis of Cellulose/MXene/PVA Foam for Efficient Methylene Blue Removal
title_full One-Pot Synthesis of Cellulose/MXene/PVA Foam for Efficient Methylene Blue Removal
title_fullStr One-Pot Synthesis of Cellulose/MXene/PVA Foam for Efficient Methylene Blue Removal
title_full_unstemmed One-Pot Synthesis of Cellulose/MXene/PVA Foam for Efficient Methylene Blue Removal
title_short One-Pot Synthesis of Cellulose/MXene/PVA Foam for Efficient Methylene Blue Removal
title_sort one-pot synthesis of cellulose/mxene/pva foam for efficient methylene blue removal
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268378/
https://www.ncbi.nlm.nih.gov/pubmed/35807488
http://dx.doi.org/10.3390/molecules27134243
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