As an advanced support of TiO₂ photocatalyst, mesoporous silica (MS) with hierarchical macroporous architecture (MMS) was prepared by applying templating synthesis techniques. Colloidal crystal of spherical poly(methyl methacrylate) (PMMA) particles and organic surfactant was used for construction of two types of pores with different size scales. The porous structure and state of TiO₂ was investigated by various characterization techniques. Mesoporous and macroporous structure of MMS with interconnecting networks was maintained even after loading of TiO₂ particles. The unique properties of macroporous structure were observed in the adsorption of acetone gas and 2-propanol gas. In comparison of TiO₂-loaded MMS and MS (denoted as TiO₂/MMS and TiO₂/MS), TiO₂/MMS showed a high adsorption rate and a large adsorbed amount in the case of 2-propanol at low and high relative pressure, respectively. However, each profile in the case of acetone was almost same in both samples. Based on the advantageous porous structure, TiO₂/MMS also exhibited a good photocatalytic performance in the degradation of 2-propanol in gas phase under UV light irradiation.

作为TiO ₂光催化剂的高级载体，通过应用模板合成技术制备了具有分级大孔结构（MMS）的中孔二氧化硅（MS）。球形聚甲基丙烯酸甲酯（PMMA）颗粒和有机表面活性剂的胶体晶体用于构建两种不同尺寸尺度的孔。通过各种表征技术研究了TiO ₂的多孔结构和状态。即使负载了TiO ₂颗粒，也保持了具有互连网络的MMS的中孔和大孔结构。在吸附丙酮气体和2-丙醇气体中观察到大孔结构的独特性质。负载TiO _2的MMS和MS（表示为TiO₂ / MMS和TiO ₂ / MS），在2-丙醇的低和高相对压力下，TiO ₂ / MMS分别显示出高吸附速率和大吸附量。但是，在两个样品中，丙酮情况下的每个分布几乎相同。基于有利的多孔结构，TiO ₂ / MMS在紫外光照射下在气相中2-丙醇的降解中也表现出良好的光催化性能。