Influencing factors on kaolinite-potassium acetate intercalation complexes


Autoria(s): Frost, Ray L.; Yang, Jing; Cheng, Hongfei; Liu, Qinfu; Du, Xiaoman
Data(s)

2010

Resumo

This paper presents an immersion method for preparing the kaolinite-potassium acetate intercalation complexes. The effectiveness of intercalation and influencing factors were analysed and evaluated. The results show that the intercalation of kaolinite by potassium acetate is strongly related to crystallinity of kaolinite, concentration of intercalating agent solution, aging time and pH. The well-crystallized kaolinite is conducive to intercalation by potassium acetate. A higher concentration of intercalating agent (≥30%) can complete the intercalation in a short time (<12h), but at lower concentrations intercalation took significantly longer (≥144h). The weak alkaline condition of pH=10 proved to be the most suitable environment for the formation of intercalation complex. A good intercalated complex can be obtained at room temperature.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/38917/

Publicador

Elsevier

Relação

http://eprints.qut.edu.au/38917/1/c38917.pdf

DOI:10.1016/j.clay.2010.09.011

Frost, Ray L., Yang, Jing, Cheng, Hongfei, Liu, Qinfu, & Du, Xiaoman (2010) Influencing factors on kaolinite-potassium acetate intercalation complexes. Applied Clay Science, 50(4), pp. 476-480.

Direitos

Copyright 2010 Elsevier

Fonte

Chemistry; Faculty of Science and Technology

Palavras-Chave #030603 Colloid and Surface Chemistry #030606 Structural Chemistry and Spectroscopy #Kaolinite; Intercalation complex; Influencing factors, X-ray diffraction
Tipo

Journal Article