Inspection and Research Center of Nanomaterials and Nanoproducts, Chinese Academy of Inspection and Quarantine, Chaoyang District, Beijing, P R China.
Sci Rep. 2013;3:2204. doi: 10.1038/srep02204.
Mesoporous nanostructures represent a unique class of photocatalysts with many applications, including splitting of water, degradation of organic contaminants, and reduction of carbon dioxide. In this work, we report a general Lewis acid catalytic template route for the high-yield producing single- and multi-component large-scale three-dimensional (3D) mesoporous metal oxide networks. The large-scale 3D mesoporous metal oxide networks possess large macroscopic scale (millimeter-sized) and mesoporous nanostructure with huge pore volume and large surface exposure area. This method also can be used for the synthesis of large-scale 3D macro/mesoporous hierarchical porous materials and noble metal nanoparticles loaded 3D mesoporous networks. Photocatalytic degradation of Azo dyes demonstrated that the large-scale 3D mesoporous metal oxide networks enable high photocatalytic activity. The present synthetic method can serve as the new design concept for functional 3D mesoporous nanomaterials.
介孔纳米结构是一类独特的光催化剂，具有多种应用，包括水的分解、有机污染物的降解和二氧化碳的还原。在这项工作中，我们报告了一种通用的路易斯酸催化模板法，用于高产率地制备单组分和多组分的大规模三维（3D）介孔金属氧化物网络。这种大规模的 3D 介孔金属氧化物网络具有大的宏观尺度（毫米级）和介孔纳米结构，具有巨大的孔体积和大的表面暴露面积。这种方法还可以用于合成大规模的 3D 宏观/介孔分级多孔材料和负载 3D 介孔网络的贵金属纳米粒子。光催化降解偶氮染料的实验表明，大规模的 3D 介孔金属氧化物网络具有高光催化活性。本合成方法可以作为功能性 3D 介孔纳米材料的新设计理念。
