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Nanofluidic proton channels based on a 2D layered glass membrane with improved aqueous and acid stability

Layered two-dimensional (2D) membranes hold great promise in the study of confined ion transport and nanofluidic applications. However, 2D layered membranes suffer from poor stability in water and harsh chemical conditions. Here we use amorphous silica-based nanosheets obtained by vermiculite to ass...

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Autores principales: Luo, Kuiguang, Huang, Tao, Li, Qi, Lao, Junchao, Gao, Jun, Tang, Yi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9574643/
https://www.ncbi.nlm.nih.gov/pubmed/36321083
http://dx.doi.org/10.1039/d2ra03848j
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author Luo, Kuiguang
Huang, Tao
Li, Qi
Lao, Junchao
Gao, Jun
Tang, Yi
author_facet Luo, Kuiguang
Huang, Tao
Li, Qi
Lao, Junchao
Gao, Jun
Tang, Yi
author_sort Luo, Kuiguang
collection PubMed
description Layered two-dimensional (2D) membranes hold great promise in the study of confined ion transport and nanofluidic applications. However, 2D layered membranes suffer from poor stability in water and harsh chemical conditions. Here we use amorphous silica-based nanosheets obtained by vermiculite to assemble a layered glass membrane (LGM) with a 2D nanofluidic channel network in the interlayer space. We find that the water stability and corrosion resistance of the LGM are improved compared to that of the layered vermiculite membrane. Moreover, the surface charge-governed proton conductivity of LGM remains stable at about 4 × 10(−2) S cm(−1) when the HCl solution concentration changes by orders of magnitude. The enhanced stability of LGM is of great significance for the study of confined ion transport and is expected to be applied to more nanofluidic applications, such as water treatment, molecular sieving, and osmotic energy conversion.
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spelling pubmed-95746432022-10-31 Nanofluidic proton channels based on a 2D layered glass membrane with improved aqueous and acid stability Luo, Kuiguang Huang, Tao Li, Qi Lao, Junchao Gao, Jun Tang, Yi RSC Adv Chemistry Layered two-dimensional (2D) membranes hold great promise in the study of confined ion transport and nanofluidic applications. However, 2D layered membranes suffer from poor stability in water and harsh chemical conditions. Here we use amorphous silica-based nanosheets obtained by vermiculite to assemble a layered glass membrane (LGM) with a 2D nanofluidic channel network in the interlayer space. We find that the water stability and corrosion resistance of the LGM are improved compared to that of the layered vermiculite membrane. Moreover, the surface charge-governed proton conductivity of LGM remains stable at about 4 × 10(−2) S cm(−1) when the HCl solution concentration changes by orders of magnitude. The enhanced stability of LGM is of great significance for the study of confined ion transport and is expected to be applied to more nanofluidic applications, such as water treatment, molecular sieving, and osmotic energy conversion. The Royal Society of Chemistry 2022-10-17 /pmc/articles/PMC9574643/ /pubmed/36321083 http://dx.doi.org/10.1039/d2ra03848j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Luo, Kuiguang
Huang, Tao
Li, Qi
Lao, Junchao
Gao, Jun
Tang, Yi
Nanofluidic proton channels based on a 2D layered glass membrane with improved aqueous and acid stability
title Nanofluidic proton channels based on a 2D layered glass membrane with improved aqueous and acid stability
title_full Nanofluidic proton channels based on a 2D layered glass membrane with improved aqueous and acid stability
title_fullStr Nanofluidic proton channels based on a 2D layered glass membrane with improved aqueous and acid stability
title_full_unstemmed Nanofluidic proton channels based on a 2D layered glass membrane with improved aqueous and acid stability
title_short Nanofluidic proton channels based on a 2D layered glass membrane with improved aqueous and acid stability
title_sort nanofluidic proton channels based on a 2d layered glass membrane with improved aqueous and acid stability
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9574643/
https://www.ncbi.nlm.nih.gov/pubmed/36321083
http://dx.doi.org/10.1039/d2ra03848j
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