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Preparation and Properties of Hydrophobically Modified Nano-SiO(2) with Hexadecyltrimethoxysilane

[Image: see text] As a common inorganic silicon material, nano-SiO(2) is extremely hydrophilic due to the presence of a large number of hydroxyl groups on its surface, which limits its application in some fields. In this research, hexadecyltrimethoxysilane (HDTMS) was used to modify nano-SiO(2), and...

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Autores principales: Xu, Bingbing, Zhang, Qiuhui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8047744/
https://www.ncbi.nlm.nih.gov/pubmed/33869956
http://dx.doi.org/10.1021/acsomega.1c00381
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author Xu, Bingbing
Zhang, Qiuhui
author_facet Xu, Bingbing
Zhang, Qiuhui
author_sort Xu, Bingbing
collection PubMed
description [Image: see text] As a common inorganic silicon material, nano-SiO(2) is extremely hydrophilic due to the presence of a large number of hydroxyl groups on its surface, which limits its application in some fields. In this research, hexadecyltrimethoxysilane (HDTMS) was used to modify nano-SiO(2), and the results of water contact angle (WCA), Fourier transform infrared (FTIR), two-dimensional correlation spectroscopy (2D-COS), thermogravimetric (TG) analysis, and scanning electron microscopy (SEM) indicated that the hydrophobic long-chain alkyl of HDTMS was successfully grafted onto the surface of nano-SiO(2). When the ratio of nano-SiO(2) and HDTMS was 0.25:1, the WCA of nano-SiO(2) modified with HDTMS (HDTMS-nano-SiO(2)) reached 170.9°, which was about 5.62 times higher than that before modification, and the superhydrophobic property was obtained. The novelty of this work lies in the modified nano-SiO(2) with a WCA of over 170° and the analysis of the modification mechanism with the help of 2D-COS. This study can provide a reference for the hydrophobic modification of nano-SiO(2) and its application field expansion.
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spelling pubmed-80477442021-04-16 Preparation and Properties of Hydrophobically Modified Nano-SiO(2) with Hexadecyltrimethoxysilane Xu, Bingbing Zhang, Qiuhui ACS Omega [Image: see text] As a common inorganic silicon material, nano-SiO(2) is extremely hydrophilic due to the presence of a large number of hydroxyl groups on its surface, which limits its application in some fields. In this research, hexadecyltrimethoxysilane (HDTMS) was used to modify nano-SiO(2), and the results of water contact angle (WCA), Fourier transform infrared (FTIR), two-dimensional correlation spectroscopy (2D-COS), thermogravimetric (TG) analysis, and scanning electron microscopy (SEM) indicated that the hydrophobic long-chain alkyl of HDTMS was successfully grafted onto the surface of nano-SiO(2). When the ratio of nano-SiO(2) and HDTMS was 0.25:1, the WCA of nano-SiO(2) modified with HDTMS (HDTMS-nano-SiO(2)) reached 170.9°, which was about 5.62 times higher than that before modification, and the superhydrophobic property was obtained. The novelty of this work lies in the modified nano-SiO(2) with a WCA of over 170° and the analysis of the modification mechanism with the help of 2D-COS. This study can provide a reference for the hydrophobic modification of nano-SiO(2) and its application field expansion. American Chemical Society 2021-03-31 /pmc/articles/PMC8047744/ /pubmed/33869956 http://dx.doi.org/10.1021/acsomega.1c00381 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Xu, Bingbing
Zhang, Qiuhui
Preparation and Properties of Hydrophobically Modified Nano-SiO(2) with Hexadecyltrimethoxysilane
title Preparation and Properties of Hydrophobically Modified Nano-SiO(2) with Hexadecyltrimethoxysilane
title_full Preparation and Properties of Hydrophobically Modified Nano-SiO(2) with Hexadecyltrimethoxysilane
title_fullStr Preparation and Properties of Hydrophobically Modified Nano-SiO(2) with Hexadecyltrimethoxysilane
title_full_unstemmed Preparation and Properties of Hydrophobically Modified Nano-SiO(2) with Hexadecyltrimethoxysilane
title_short Preparation and Properties of Hydrophobically Modified Nano-SiO(2) with Hexadecyltrimethoxysilane
title_sort preparation and properties of hydrophobically modified nano-sio(2) with hexadecyltrimethoxysilane
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8047744/
https://www.ncbi.nlm.nih.gov/pubmed/33869956
http://dx.doi.org/10.1021/acsomega.1c00381
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