Nanostructured metal oxides with hierarchical structures may satisfy our requirements for desired materials for adsorption of polltants. Including inorganic metal ions and organic wastes. We developed several general synthesis routes to synthesize metal oxides with desired morphologies and hierarchical structures (figure 1). These methods include poly-ol mediated route, surfactant assisted aqueous route, hydrothermal route. These routes provide general, reliable and environmental friendly method to prepare a series of transitional metal oxides and rare earth metal oxides, including iron oxide, titania and ceria. These materials are overall micron sized particles that are consisted of assembled or self assembled nano building blocks. The nano building blocks provide high surface area, high surface to bulk ratio as well as surface functional groups that can interact with heavy metal ions and organic species; while the overall micron structures provide desired mechanical properties, such as robustness, facile specie transportation, easy recovery and regeneration. These features are suited for environmental applications.Reference:1.       Shao-Wei Bian, Zhuo Ma, Le-Sheng Zhang, Fang Niu and Wei-Guo Song* Chemical Communications, 2009, 1261-12632.       Jin-Song Hu, Liang Shu Zhong, Wei-Guo Song*, Li-Jun Wan*, Adv. Mater. 2008, 20, 2977-2982.3.       Liang-Shu Zhong,a Jin-Song Hu, Li-Jun Wan,* Wei-Guo Song*,  Chem. Comm. 2008, 1184-1186.4.     Liang-Shu Zhong, Jin-Song Hu, An-Min Cao, Qiang Liu, Wei-Guo Song, and Li-Jun Wan*, Chemistry of Materials 2007, 19, 1648-1655.5.       Liang-Shu Zhong, Jin-Song Hu, Han-Pu Liang, An-Min Cao, Wei-Guo Song, Li-Jun Wan, Adv. Mater. 2006, 18, (18), 2426-+

Nanostructured metal oxides' fabrication and environmental applications

240th National Meeting (2010)

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