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Layered zinc hydroxide nanocones: synthesis, facile morphological and structural modification, and properties
Wei Ma1, Renzhi Ma, Jianbo Liang
1International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan. MA.Renzhi@nims.go.jp.
Nanoscale
|October 14, 2014
Summary
Researchers synthesized novel zinc hydroxide nanocones using sodium dodecyl sulfate (SDS), enabling anion exchange and morphology control. These structures transform into zinc oxide (ZnO) nanocones and nanoplates with promising photocatalytic applications.
Area of Science:
- Materials Science
- Nanotechnology
- Chemistry
Background:
- Controlling nanomaterial morphology is crucial for tailoring properties.
- Layered hydroxides offer versatile platforms for functionalization and transformation.
Purpose of the Study:
- To synthesize novel layered zinc hydroxide nanocones.
- To investigate the role of sodium dodecyl sulfate (SDS) in morphology control.
- To explore anion-exchange capabilities and subsequent transformations into various ZnO nanostructures.
Main Methods:
- Homogeneous precipitation using urea and SDS.
- Anion-exchange reactions in ethanol.
- Aqueous solution transformation at room temperature.
- Thermal calcination to form ZnO nanostructures.
Main Results:
- Successfully synthesized layered zinc hydroxide nanocones intercalated with DS(-).
- Demonstrated SDS's critical role in controlling sample morphology.
- Achieved anion exchange while preserving the conical structure.
- Transformed DS(-)-inserted nanocones into square-like nanoplates.
- Obtained ZnO nanocones and nanoplates via calcination of intercalated precursors.
Conclusions:
- A facile synthetic route for zinc hydroxide nanocones was established.
- Morphology control and anion-exchange capabilities were demonstrated.
- Diverse ZnO nanostructures with tunable morphologies were produced.
- The synthesized ZnO nanostructures show potential for photocatalysis.
