Preparation and organic solvent adsorption of PTFE fabric reinforced GO/SiO2aerogel

Wenqian Yan; Kunmeng Zhu; Xiaodong Wu; Boya Li; Sheng Cui; Xiaodong Shen

doi:10.1246/CL.200414

Preparation and organic solvent adsorption of PTFE fabric reinforced GO/SiO₂aerogel

Wenqian Yan, Kunmeng Zhu, Xiaodong Wu, Boya Li, Sheng Cui, Xiaodong Shen

College of Materials Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The adsorption capacity of SiO2 aerogel has been greatly improved with the cross-linking of graphene and composition of PTFE fabric via sol-gel method and CO2 supercritical drying technique. The effects of MTMS/GO molar ratios are investigated, it can be found that the GO/SiO2 aerogel has a large specific surface area of 551 m2/g and high pore volume of 2.2 cm3/g. Meanwhile, as an excellent adsorbent, hydrophobicity is prerequisite; the contact angle of PTFE fabric reinforced GO/SiO2 aerogel is up to 152.8°. In terms of adsorption capacity, the result shows that it can reach the value of 10.87 g/g for NMP and 9.24 g/g for cyclohexane. Furthermore, it can still retain the initial adsorption of 78.3% to 85.9% after several cycles. It is noted that the first-order kinetic model is used to prove the adsorption validity, which achieves a fitting degree over 99%.

Original language	English
Pages (from-to)	1324-1328
Number of pages	5
Journal	Chemistry Letters
Volume	49
Issue number	11
DOIs	https://doi.org/10.1246/CL.200414
State	Published - Nov 2020

Keywords

Adsorption ability
First-order kinetic
SiOaerogel

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title = "Preparation and organic solvent adsorption of PTFE fabric reinforced GO/SiO2aerogel",

abstract = "The adsorption capacity of SiO2 aerogel has been greatly improved with the cross-linking of graphene and composition of PTFE fabric via sol-gel method and CO2 supercritical drying technique. The effects of MTMS/GO molar ratios are investigated, it can be found that the GO/SiO2 aerogel has a large specific surface area of 551 m2/g and high pore volume of 2.2 cm3/g. Meanwhile, as an excellent adsorbent, hydrophobicity is prerequisite; the contact angle of PTFE fabric reinforced GO/SiO2 aerogel is up to 152.8°. In terms of adsorption capacity, the result shows that it can reach the value of 10.87 g/g for NMP and 9.24 g/g for cyclohexane. Furthermore, it can still retain the initial adsorption of 78.3% to 85.9% after several cycles. It is noted that the first-order kinetic model is used to prove the adsorption validity, which achieves a fitting degree over 99%.",

keywords = "Adsorption ability, First-order kinetic, SiOaerogel",

author = "Wenqian Yan and Kunmeng Zhu and Xiaodong Wu and Boya Li and Sheng Cui and Xiaodong Shen",

note = "Publisher Copyright: {\textcopyright} 2020 The Chemical Society of Japan.",

year = "2020",

month = nov,

doi = "10.1246/CL.200414",

language = "英语",

volume = "49",

pages = "1324--1328",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "Oxford University Press",

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TY - JOUR

T1 - Preparation and organic solvent adsorption of PTFE fabric reinforced GO/SiO2aerogel

AU - Yan, Wenqian

AU - Zhu, Kunmeng

AU - Wu, Xiaodong

AU - Li, Boya

AU - Cui, Sheng

AU - Shen, Xiaodong

PY - 2020/11

Y1 - 2020/11

N2 - The adsorption capacity of SiO2 aerogel has been greatly improved with the cross-linking of graphene and composition of PTFE fabric via sol-gel method and CO2 supercritical drying technique. The effects of MTMS/GO molar ratios are investigated, it can be found that the GO/SiO2 aerogel has a large specific surface area of 551 m2/g and high pore volume of 2.2 cm3/g. Meanwhile, as an excellent adsorbent, hydrophobicity is prerequisite; the contact angle of PTFE fabric reinforced GO/SiO2 aerogel is up to 152.8°. In terms of adsorption capacity, the result shows that it can reach the value of 10.87 g/g for NMP and 9.24 g/g for cyclohexane. Furthermore, it can still retain the initial adsorption of 78.3% to 85.9% after several cycles. It is noted that the first-order kinetic model is used to prove the adsorption validity, which achieves a fitting degree over 99%.

AB - The adsorption capacity of SiO2 aerogel has been greatly improved with the cross-linking of graphene and composition of PTFE fabric via sol-gel method and CO2 supercritical drying technique. The effects of MTMS/GO molar ratios are investigated, it can be found that the GO/SiO2 aerogel has a large specific surface area of 551 m2/g and high pore volume of 2.2 cm3/g. Meanwhile, as an excellent adsorbent, hydrophobicity is prerequisite; the contact angle of PTFE fabric reinforced GO/SiO2 aerogel is up to 152.8°. In terms of adsorption capacity, the result shows that it can reach the value of 10.87 g/g for NMP and 9.24 g/g for cyclohexane. Furthermore, it can still retain the initial adsorption of 78.3% to 85.9% after several cycles. It is noted that the first-order kinetic model is used to prove the adsorption validity, which achieves a fitting degree over 99%.

KW - Adsorption ability

KW - First-order kinetic

KW - SiOaerogel

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U2 - 10.1246/CL.200414

DO - 10.1246/CL.200414

M3 - 文章

AN - SCOPUS:85096061328

SN - 0366-7022

VL - 49

SP - 1324

EP - 1328

JO - Chemistry Letters

JF - Chemistry Letters

IS - 11

ER -

Preparation and organic solvent adsorption of PTFE fabric reinforced GO/SiO₂aerogel

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Keywords

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