A photocatalytically active layer composed of TiO₂ (Evonik P25) was successfully deposited on the macroporous (3 µm pore size) permeate side of an asymmetric porous alumina membrane with the aid of a smectite (a synthetic hectorite, Sumecton SWF) by dipping the membranes into an aqueous suspension containing P25 and the smectite. After the heat treatment at 400 °C, the coated hybrid was adhered on the macroporous support enough to be applied for the photocatalytic decomposition of organics (methylene blue and phenol as model molecules) in water. The water permeance of the membranes after the coating with the P25-smectite hybrid was reduced by only 24% compared with that of the pristine membrane, showing that the advantages of the present method for the preparation of the photocatalyst layer on the surface of the macroporous alumina without significant infiltration of the suspension into the support pores. The amount of MB and phenol degraded using the P25-SWF hybrid was equal to 0.007 and 0.023 mmol.L⁻¹, respectively, when the reaction was carried out using the four single-channel tubular membrane reactor at transmembrane pressures of 250 mbar. The implemented photocatalytic membrane reactor can easily be up-scaled by increase the size of the membrane module, with more tubes and longer tubes (lengths up to 1 m are commercially available), paving the way to potential technological applications for the continuous treatment of polluted waters.

由TiO ₂组成的光催化活性层（Evonik P25）借助于蒙脱石（合成锂蒙脱石，Sumecton SWF）成功地通过将膜浸入含有P25和P25的水悬浮液中而成功地沉积在不对称多孔氧化铝膜的大孔（孔径3 µm）渗透侧。绿土。在400°C下进行热处理后，将涂覆的杂化体附着在大孔载体上，足以用于水中的有机物（亚甲基蓝和苯酚作为模型分子）的光催化分解。与原始膜相比，涂有P25-蒙脱土杂化物的膜的透水率仅降低了24％，这表明本方法在大孔氧化铝表面上制备光催化剂层的优点，而不会使悬浮液明显渗透到载体孔中。使用P25-SWF杂化物降解的MB和苯酚的量分别为0.007和0.023 mmol.L当使用四个单通道管式膜反应器在250 mbar的跨膜压力下进行反应时，分别为^-1。可以通过增加膜模块的尺寸轻松地实现已实施的光催化膜反应器的规模，具有更多的管子和更长的管子（长度可达到1 m），这为连续处理污染的潜在技术应用铺平了道路。水域。