期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 21, 期 44, 页码 17680-17687出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm13180j
关键词
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资金
- Japan Society for Promotion of Science (JSPS)
- International Center for Materials Nanoarchitectonics (MANA) tenable at the National Institute for Materials Science (NIMS)
- National Natural Science Foundation of China [20733006, 20871117]
- CAS/SAFEA
- National Basic Research Program of China [2011CB808402, 2007CB936402, 2009CB930400]
Nowadays, despite the success evidenced in synthesis of hybrid materials, spherical hybrid materials are usually based on core-shell structures or alloy-like ensembles with homogenous distribution of all components. For core-shells, the performance of a core part is usually hampered due to a thick shell, and alloy-like ensembles commonly have low surface area. Therefore, the synthesis of hybrid multishelled hollow materials with both even phase distribution and well-ordered building blocks, may be a better choice. In this paper, we developed a new method to successfully fabricate Co3O4-Fe3O4 materials with the above ideal structure. As-prepared Co3O4-Fe3O4 products have definite structural advantages. Therefore, these Co3O4-Fe3O4 products not only exhibit excellent ability in waste-water treatment applications, but are also feasible for the fast recyclable treatment via a simple magnetic separation. In addition, they also show interesting structure-dependent magnetic properties and could serve as a model material for a heterogeneous antiferromagnet/ferromagnet system without clear/sharp interfaces. Needless to say, our newly developed synthetic approach may be extended toward the synthesis of other hybrid materials with even functional phase distribution.
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