Silica membranes having macrochannels with mesoporous walls were spontaneously fabricated using a self-organized process with rapid gelation of concentrated silicate and surfactant precursor solutions. The specific hierarchical porous framework consisting of straight macrochannels ca. 1 μm in diameter is similar to that of a biological silica frustule of diatoms. We applied the diatom-mimetic channeled mesoporous silica membranes to high-permeability-rate filtration and enhanced photocatalytic systems. The presence of macrochannels was found to improve the performance of the mesoporous silica membranes in filtration and as a photocatalyst carrier.

中文翻译：

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硅藻模拟通道介孔二氧化硅膜：分层多孔框架的自组织形成。

使用自组织方法自发地制备具有带中孔壁大通道的二氧化硅膜，并快速浓缩浓硅酸盐和表面活性剂前体溶液。由直的宏通道ca组成的特定层次多孔框架。直径为1μm的硅藻类似于生物学硅藻壳。我们将硅藻土模拟通道介孔二氧化硅膜应用于高渗透率过滤和增强的光催化系统。发现大通道的存在改善了介孔二氧化硅膜在过滤中和作为光催化剂载体的性能。