Synthesis of Mg2Al-Cl layered double hydroxide nanosheets in a surfactant-free reverse microemulsion

The synthesis of Mg 2 Al-Cl layered double hydroxide (LDH) nanosheets in a surfactant-free reverse microemulsion is described. The microemulsion was composed of toluene, isopropanol, and an aqueous solution as the dispersed phase. An aqueous LDH nanosheet dispersion was obtained by a double-microemu...

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Bibliographic Details
Published in:Colloid and polymer science 2013-11, Vol.291 (11), p.2515-2521
Main Authors: Xu, Jie, Zhang, Lin, Li, Dongxiang, Zhao, Jikuan, Hou, Wanguo
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemical synthesis methods
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Cross-disciplinary physics: materials science
rheology
Dispersions
Exact sciences and technology
Food Science
Materials science
Methods of nanofabrication
Nanotechnology and Microengineering
Original Contribution
Physical Chemistry
Physics
Polymer Sciences
Soft and Granular Matter
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Summary:The synthesis of Mg 2 Al-Cl layered double hydroxide (LDH) nanosheets in a surfactant-free reverse microemulsion is described. The microemulsion was composed of toluene, isopropanol, and an aqueous solution as the dispersed phase. An aqueous LDH nanosheet dispersion was obtained by a double-microemulsion technique. LDH nanosheets were characterized by X-ray powder diffraction, transmission electron microscopy, scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, and thermogravimetric and elemental analyses. The LDH nanosheets consisted of a single brucite layer without any loading of organic molecules. To the best of our knowledge, this is the first report of a naked LDH monolayer aqueous dispersion being directly obtained. The LDH monolayers can be used as building blocks for LDH-based functional materials.
ISSN:0303-402X
1435-1536
DOI:10.1007/s00396-013-2996-8