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Citation: ZHAO Yanzhao, ZHANG Yali, WANG Lan. Structure and Property Comparison of Montmorillonites Modified with Organo-ionic Surfactants[J]. Chinese Journal of Applied Chemistry, ;2013, 30(12): 1449-1452. doi: 10.3724/SP.J.1095.2013.30053 shu

Structure and Property Comparison of Montmorillonites Modified with Organo-ionic Surfactants

a. School of Materials Science & Engineering, Shanxi University of Science & Technology, Xi'an 710021, China;
b. College of Life Science & Engineering, Shanxi University of Science & Technology, Xi'an 710021, China

Received Date: 21 January 2013
Revised Date: 7 April 2013

Organic montmorillonites (OMMT) were prepared through ion exchange method using cationic surfactant cetyl trimethyl ammonium bromide (CTAB),anionic surfactant sodium dodecyl sulfate (SDS) and their mixture (CTAB-SDS). The structures of OMMT were characterized by FT-IR and XRD. The results show that CTAB and CTAB-SDS are intercalated into the layers of montmorillonite while SDS is not. The distances between the montmorillonite layers are increased from 1.5601 nm to 2.1946 nm and 1.8935 nm when CTAB and CTAB-SDS are used respectively. The resulted OMMTs with increased layer distances have a good dispersibility in styrene and show improved adsorption toward phenol.
- montmorillonite,
- organic modification,
- surfactant
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