A study on the preparation of superhydrophobic Silane-MXene modified melamine foam and its oil-water separation performance

In recent years, oil spills and organic pollution have caused severe damage to the ecological environment. Therefore, the treatment of oily wastewater has become a serious challenge. Here, with the help of melamine foams as a substrate, MXene nano-rough structures were built, and cetyltrimethoxysila...

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Main Authors: Wei Wang, Xiangning Song, Yan Xie, Xuejia Sheng, Shucai Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-11-01
Series:Frontiers in Materials
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmats.2023.1277247/full
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author Wei Wang
Xiangning Song
Yan Xie
Xuejia Sheng
Shucai Zhang
author_facet Wei Wang
Xiangning Song
Yan Xie
Xuejia Sheng
Shucai Zhang
author_sort Wei Wang
collection DOAJ
description In recent years, oil spills and organic pollution have caused severe damage to the ecological environment. Therefore, the treatment of oily wastewater has become a serious challenge. Here, with the help of melamine foams as a substrate, MXene nano-rough structures were built, and cetyltrimethoxysilane was grafted onto their surfaces to create an oil-absorbing material that is both user-friendly and effective at oil-water separation. Due to the nano structures of MXene were constructed and the long-chain silanes were modified on the foam surface, the material became superhydrophobic. In addition to being able to selectively absorb oils from an oil/water mixture (including emulsified oils) up to 111 times its weight, the modified foam was found to have a water contact angle of 157 which could selectively absorb oil but not water. Furthermore, it demonstrated sustained hydrophobicity and lipophilicity after experiencing strong acid/alkali or prolonged high-temperature treatment, allowing for various scenarios where oil-water separation can be used in severe settings without compromising performance.
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spelling doaj.art-fff5dce63742410aaac0364ad2891f272023-11-13T06:32:00ZengFrontiers Media S.A.Frontiers in Materials2296-80162023-11-011010.3389/fmats.2023.12772471277247A study on the preparation of superhydrophobic Silane-MXene modified melamine foam and its oil-water separation performanceWei WangXiangning SongYan XieXuejia ShengShucai ZhangIn recent years, oil spills and organic pollution have caused severe damage to the ecological environment. Therefore, the treatment of oily wastewater has become a serious challenge. Here, with the help of melamine foams as a substrate, MXene nano-rough structures were built, and cetyltrimethoxysilane was grafted onto their surfaces to create an oil-absorbing material that is both user-friendly and effective at oil-water separation. Due to the nano structures of MXene were constructed and the long-chain silanes were modified on the foam surface, the material became superhydrophobic. In addition to being able to selectively absorb oils from an oil/water mixture (including emulsified oils) up to 111 times its weight, the modified foam was found to have a water contact angle of 157 which could selectively absorb oil but not water. Furthermore, it demonstrated sustained hydrophobicity and lipophilicity after experiencing strong acid/alkali or prolonged high-temperature treatment, allowing for various scenarios where oil-water separation can be used in severe settings without compromising performance.https://www.frontiersin.org/articles/10.3389/fmats.2023.1277247/fullmelamine foamoil-water separationMXenelong-chain silanesuperhydrophobic
spellingShingle Wei Wang
Xiangning Song
Yan Xie
Xuejia Sheng
Shucai Zhang
A study on the preparation of superhydrophobic Silane-MXene modified melamine foam and its oil-water separation performance
Frontiers in Materials
melamine foam
oil-water separation
MXene
long-chain silane
superhydrophobic
title A study on the preparation of superhydrophobic Silane-MXene modified melamine foam and its oil-water separation performance
title_full A study on the preparation of superhydrophobic Silane-MXene modified melamine foam and its oil-water separation performance
title_fullStr A study on the preparation of superhydrophobic Silane-MXene modified melamine foam and its oil-water separation performance
title_full_unstemmed A study on the preparation of superhydrophobic Silane-MXene modified melamine foam and its oil-water separation performance
title_short A study on the preparation of superhydrophobic Silane-MXene modified melamine foam and its oil-water separation performance
title_sort study on the preparation of superhydrophobic silane mxene modified melamine foam and its oil water separation performance
topic melamine foam
oil-water separation
MXene
long-chain silane
superhydrophobic
url https://www.frontiersin.org/articles/10.3389/fmats.2023.1277247/full
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