Here we describe the development of a new mesocrytalline anatase-based photocatalyst with an activity nearly double that of the commercial Evonik Aeroxide® TiO₂ P25 catalyst. An extensive characterization of this new catalytic material with XRD, TEM, SAED, EELS, SEM, RAMAN and XPS shows that its activity is promoted by its hybrid structure comprising mesocrystalline anatase and K₂Ti₆O₁₃ whiskers formed within the TiO₂ mesocrystals. This new and unexpected component is formed in situ within the TiO₂ mesocrystalline framework at a surprisingly low temperature of 500 °C as a result of potassium diffusion from polymer-matrix phase. The growth of whiskers occurs at the 001 TiO₂ planes of mesocrystals and their sizes attain 60 nm in a section and a few µm in length.

在这里，我们描述了一种新的基于美辛他林基于锐钛矿的光催化剂的开发，该催化剂的活性几乎是商用赢创Aeroxide®TiO ₂ P25催化剂的两倍。用XRD，TEM，SAED，EELS，SEM，RAMAN和XPS对这种新型催化材料进行了广泛的表征，表明其活性是由其杂化结构提高的，该杂化结构包括介晶锐钛矿和TiO ₂介晶内形成的K ₂ Ti ₆ O ₁₃晶须。这种新的意外成分是在TiO ₂中原位形成的由于钾从聚合物基体相中扩散出来，因此在令人惊讶的500°C低温下形成了中晶骨架。晶须的生长出现在介晶的001 TiO ₂平面上，其尺寸在一个截面中达到60 nm，长度为几µm。