期刊
ACS NANO
卷 11, 期 5, 页码 4753-4759出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b01051
关键词
atomic layer deposition; chirality; chiral surface; X-ray photoelectron spectroscopy; nanomaterials
类别
资金
- Israel Science Foundation (ISF) [775/11]
- Ministry of Science, Technology Space, Israel
- COST organization
- European cooperation in science and technology (HERALD COST action) [MP1402]
In this article, we describe an advance approach for the fabrication of chiral metal-oxide nanofilms. Our approach is based on the atomic layer deposition of titania and alumina nanofilms onto cellulose microfibers, used as chiral templates, leading to the formation of chiral nanofilms with a spatial fibrous structure. The chiral nanofilms were extensively characterized by X-ray photoelectron spectroscopy and high-resolution electron microscopy. The chiral property of the produced titania nanofilms was studied by enantioselective adsorption experiments using circular-dichroism spectroscopy and chiral high-performance liquid chromatography. We demonstrate the application of the titania chiral nanofilms for enantioselective crystallization. Overall, the basic principle for the preparation of chiral nanofilms by atomic layer deposition is demonstrated, as well as their uses for several enantioselective applications.
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