Preparation of Nano-Kaolinite and Mechanism

Shu Li Ding; B.H. Xu; Q.F. Liu; Y.Z. Sun

doi:10.4028/www.scientific.net/AMR.204-210.1217

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 204-210Preparation of Nano-Kaolinite and Mechanism

Preparation of Nano-Kaolinite and Mechanism

Abstract:

With potassium acetate as an intercalation agent, kaolinite-potassium acetate(KAc) intercalation complexes was prepared. Afterwards, nano-kaolinite was successfully made through exfoliated intercalation complexes using power ultrasonic. The intermediate and final products were characterized by X-ray diffraction(XRD), infrared spectroscopy(IR), laser particle size analyzer, and scanning electron microscope (SEM). The results show that intercalation of KAc into kaolinite resulted in a crystal space expansion, from a basal spacing of 7.14Ǻ to 14.20 Ǻ, and the intercalation rate was about 80%. KAc intercalation causes the weakening of interlayer stability. It was shown that the particles of nano-kaolinite is very thin lamellar in shape, whose average thickness, average particle size, are 50 nm and 450 nm respectively.

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Periodical:

Advanced Materials Research (Volumes 204-210)

Pages:

1217-1220

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.204-210.1217

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Online since:

February 2011

Authors:

Shu Li Ding, B.H. Xu, Q.F. Liu, Y.Z. Sun

Keywords:

Hard Kaolinte, Nano-Kaolinite, Potassium Acetate, Power Ultrasonic

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