Hydrophobic silica aerogels prepared by microwave irradiation

Xinyang Zhang; Zhaofeng Chen; Junxiong Zhang; Xinli Ye; Sheng Cui

doi:10.1016/j.cplett.2020.138127

Hydrophobic silica aerogels prepared by microwave irradiation

Xinyang Zhang, Zhaofeng Chen, Junxiong Zhang, Xinli Ye, Sheng Cui

College of Materials Science and Engineering

Nanjing University of Aeronautics and Astronautics

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

28 Scopus citations

Abstract

Silica aerogels were synthesized by using tetraethoxysilane (TEOS) and methyltriethoxysilane (MTES) as co-precursors via the sol–gel method under the microwave irradiation condition. The optimal molar ratio of MTES:TEOS: EtOH: H₂O is 0.8:1:8:4, and the obtained aerogels showed the bulk density is 0.097 g/cm³, the surface area is 760.56 m²/g, and pore diameter is 6.06 nm, respectively. The microstructure on the skeleton of the bone networks was investigated by TEM, and the FTIR confirmed that the [sbnd]OH groups were substituted by the [sbnd]CH₃ groups prepared by MTES/TEOS co-precursor, the superhydrophobic property was described with a water contact angle up to 168.0°.

Original language	English
Article number	138127
Journal	Chemical Physics Letters
Volume	762
DOIs	https://doi.org/10.1016/j.cplett.2020.138127
State	Published - Jan 2021

Keywords

Contact angle
Microstructure
Silica aerogel
Super hydrophobic

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10.1016/j.cplett.2020.138127

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title = "Hydrophobic silica aerogels prepared by microwave irradiation",

abstract = "Silica aerogels were synthesized by using tetraethoxysilane (TEOS) and methyltriethoxysilane (MTES) as co-precursors via the sol–gel method under the microwave irradiation condition. The optimal molar ratio of MTES:TEOS: EtOH: H2O is 0.8:1:8:4, and the obtained aerogels showed the bulk density is 0.097 g/cm3, the surface area is 760.56 m2/g, and pore diameter is 6.06 nm, respectively. The microstructure on the skeleton of the bone networks was investigated by TEM, and the FTIR confirmed that the [sbnd]OH groups were substituted by the [sbnd]CH3 groups prepared by MTES/TEOS co-precursor, the superhydrophobic property was described with a water contact angle up to 168.0°.",

keywords = "Contact angle, Microstructure, Silica aerogel, Super hydrophobic",

author = "Xinyang Zhang and Zhaofeng Chen and Junxiong Zhang and Xinli Ye and Sheng Cui",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

month = jan,

doi = "10.1016/j.cplett.2020.138127",

language = "英语",

volume = "762",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Hydrophobic silica aerogels prepared by microwave irradiation

AU - Zhang, Xinyang

AU - Chen, Zhaofeng

AU - Zhang, Junxiong

AU - Ye, Xinli

AU - Cui, Sheng

PY - 2021/1

Y1 - 2021/1

N2 - Silica aerogels were synthesized by using tetraethoxysilane (TEOS) and methyltriethoxysilane (MTES) as co-precursors via the sol–gel method under the microwave irradiation condition. The optimal molar ratio of MTES:TEOS: EtOH: H2O is 0.8:1:8:4, and the obtained aerogels showed the bulk density is 0.097 g/cm3, the surface area is 760.56 m2/g, and pore diameter is 6.06 nm, respectively. The microstructure on the skeleton of the bone networks was investigated by TEM, and the FTIR confirmed that the [sbnd]OH groups were substituted by the [sbnd]CH3 groups prepared by MTES/TEOS co-precursor, the superhydrophobic property was described with a water contact angle up to 168.0°.

AB - Silica aerogels were synthesized by using tetraethoxysilane (TEOS) and methyltriethoxysilane (MTES) as co-precursors via the sol–gel method under the microwave irradiation condition. The optimal molar ratio of MTES:TEOS: EtOH: H2O is 0.8:1:8:4, and the obtained aerogels showed the bulk density is 0.097 g/cm3, the surface area is 760.56 m2/g, and pore diameter is 6.06 nm, respectively. The microstructure on the skeleton of the bone networks was investigated by TEM, and the FTIR confirmed that the [sbnd]OH groups were substituted by the [sbnd]CH3 groups prepared by MTES/TEOS co-precursor, the superhydrophobic property was described with a water contact angle up to 168.0°.

KW - Contact angle

KW - Microstructure

KW - Silica aerogel

KW - Super hydrophobic

UR - http://www.scopus.com/inward/record.url?scp=85096194775&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2020.138127

DO - 10.1016/j.cplett.2020.138127

M3 - 文章

AN - SCOPUS:85096194775

SN - 0009-2614

VL - 762

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 138127

ER -

Hydrophobic silica aerogels prepared by microwave irradiation

Abstract

Keywords

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