The Ultrasonic Wave-Assisted Preparation and Modification by KH-550 of SiO2 Aerogels

Wen Zhi Zheng; He Chao Pan; Zhen Yue Chi; Hai Jian Chen

doi:10.4028/www.scientific.net/AMR.554-556.580

Paper Titles

Study on the Leaching SiO₂ from Boromagnesite by Using Sodium Hydroxide
p.562

Research on High Pressure Solidification Microstructure and the Microhardness of Al-Mg-Zn Alloy
p.565

Preparation of α-Calcium Sulfate Hemihydrate from Phosphogypsum in CaCl₂ Solution under Atmospheric Pressure
p.570

Facile Synthesis of Basic Magnesium Carbonate with Different Morphology
p.575

The Ultrasonic Wave-Assisted Preparation and Modification by KH-550 of SiO₂ Aerogels
p.580

Study on Pyrolysis Reaction of Boron Isotope Separation
p.584

Preparation of Iodide-Thiolate Bridged Binuclear Ni-Ni Complexes via Versatile Reaction of Labile Ni(II)-S(thiolate) Bond
p.591

How Graphene Layers Depend on Drying Methods of Graphene Oxide
p.597

Synthesis of MoS₂ Nanoparticles with Inorganic Fullerene-Like Structure from Molybdenum Trioxide and Sulfur
p.601

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 554-556The Ultrasonic Wave-Assisted Preparation and...

The Ultrasonic Wave-Assisted Preparation and Modification by KH-550 of SiO₂ Aerogels

Abstract:

Under ultrasonic wave and using aminopropyltriethoxysilane as modifier and acid catalyst, hydrophobic SiO₂ aerogel was prepared through fractional hydrophobic modification and ambient pressure drying of the raw material, tetraethoxysilane (TEOS), in the process of sol-gel and acid-base catalysis.SiO₂ aerogels were analyzed and compared using scanning electron microscopy, Brunauer-Emmett-Teller analysis method, Fourier transform infrared spectroscopy. The results indicate that modifiering by the ultrasonic wave and aminopropyltriethoxysilane, the temperature tolerance of the SiO₂ aerogels was 407°C.the specific surface area of the SiO₂ aerogels was 877.17m²/g. Pore distribution in micro -pore range was 0.5～1nm. Pore distribution in meso -pore range was 1.8～2.5nm. Thermal stability of the hydrophobic SiO₂ aerogels prepared through fractional modification assisted by the ultrasonic wave method was increased with the hydrophobic angle at160°, which showed super hydrophobicity.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 554-556)

Pages:

580-583

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.554-556.580

Citation:

Cite this paper

Online since:

July 2012

Authors:

Wen Zhi Zheng, He Chao Pan, Zhen Yue Chi, Hai Jian Chen

Keywords:

Fractional Modification, Hydrophobic Modification, SiO₂ Aerogels, Ultrasonic Wave (UW)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Fei Shi , Lijiu Wang. Materials Letters. Forum Vol. 60 (2006), pp.3718-3722

Google Scholar

[2] Sung-Woo,Hwang,Tae-YounKim,Sang-Hoon Hyun. Microporous and Mesoporous Materials. Forum Vol. 130 (2010), pp.295-302

Google Scholar

[3] Jianjun Zhu, Jing Yao, Xiaomeng Lv, Jianlin Ding, Feihu Du, Jimin Xie.Journal of The Chinese Ceramic Society. Forum Vol. 37 (2009), pp.512-515[In Chinese]

Google Scholar

[4] H. El Rassy, P. Buisson, B. Bouali, A. Perrard, A. C. Pierre. Langmuir. Forum Vol. 19 (2003), pp.358-363

DOI: 10.1021/la020637r

Google Scholar

[5] Askwar Hilonga, Jong-Kil Kim, Pradip B. Sarawade, Hee Taik Kim. Journal of Alloys and Compounds. Forum Vol.487 (2009), pp.744-750

Google Scholar

[6] Nicholas Leventis, Sudhir Mulik a, Xiaojiang Wang, Journal of Non-Crystalline Solids. Forum Vol. 291 (2008), pp.632-644

Google Scholar

[7] H. Hoffmann. M. Meyer. I. Zeitler. Colloids and Surfaces A: Physicochem. Eng. Aspects. Forum Vol. 291 (2006), pp.117-127

Google Scholar

[8] Nadargi D Y,Rao A V.Journal of Alloys and Compounds. Forum Vol. 467 (2009), pp.397-404.

Google Scholar

[9] A. Soleimani Dorcheh, M.H. Abbasi. journal of materials processing technology. Forum Vol. 199 (2008), pp.10-26

Google Scholar

[10] WANG LI-jiu,ZHAO Shan-yu,YANG Mei. Materials Chemistry and Physics.Forum Vol. 113 (2009), pp.485-490.

Google Scholar

[11] A. Venkateswara Rao, G.M. Pajonk. Journal of Non-Crystalline Solids. Forum Vol. 350 (2004), pp.216-223.

Google Scholar

[12] Poonam M. Shewale, A. Venkateswara Rao , A. Applied Surface Science. Forum Vol. 254 (2008), pp.6302-6907.

Google Scholar

[13] Pradip B. Sarawade, Jong-Kil Kim, Ho-Kun Kim, Hee-Taek Kim. Applied Surface Science.Forum Vol. 254 (2007), pp.574-579.

Google Scholar