This paper demonstrates the fabrication of highly ordered mesoporous titanium dioxide (OMT) with different transition metals (TM: Fe, Mn, and Ni) by employing a self-assembly surfactant template route. The ordered TM-loaded mesoporous TiO₂ (TM-OMT) has uniform mesopores (3–5 nm pore diameter), and a crystalline framework is successfully prepared via soft template strategy by employing Pluronic® F127 triblock copolymer as a chelating and structural directing agent. The structural and optical characteristics of the TM-OMT hybrids have been examined by scanning electron microscopy (SEM), transmission electron microscope (TEM), XRD, N₂-sorption isotherms, UV/visible diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy (XPS) reveals the successful incorporation of TM ions over the highly ordered mesostructured OMT. The XRD pattern evidenced that the obtained TM-doped OMT samples are pure anatase of the crystalline phase. By employing TEM analysis, the average particle size is estimated to be 2–2.7 nm, whereas diffraction patterns have evidenced the polycrystalline features of the mesoporous structure. The bandgap energy of TM-doped mesoporous decreases according to the particular metal and its amount due to the reduced particle size. This cost-effective method provides the exceptional potential to tune the optical features for TM-doped mesoporous TiO₂ materials for its optoelectronic applications and show more significant promise for energy conversion technologies.

本文演示了通过采用自组装表面活性剂模板路线，用不同的过渡金属（TM：Fe，Mn和Ni）制备高度有序的介孔二氧化钛（OMT）。有序的TM负载的介孔TiO ₂（TM-OMT）具有均匀的中孔（孔径为3-5 nm），并且通过使用Pluronic®F127三嵌段共聚物作为螯合剂和结构定向剂，通过软模板策略成功制备了晶体骨架。通过扫描电子显微镜（SEM），透射电子显微镜（TEM），XRD，N ₂检验了TM-OMT杂化物的结构和光学特性吸附等温线，紫外/可见漫反射光谱和X射线光电子能谱（XPS）表明，TM离子已成功地结合到高度有序的介观结构的OMT上。XRD图谱表明，所获得的TM掺杂OMT样品是结晶相的纯锐钛矿。通过TEM分析，平均粒径估计为2–2.7 nm，而衍射图谱证明了介孔结构的多晶特征。TM掺杂的中孔的带隙能量根据特定的金属及其量而减小，这归因于减小的粒度。这种具有成本效益的方法为调节TM掺杂的中孔TiO ₂的光学特性提供了巨大的潜力。 用于光电应用的材料，并在能量转换技术方面显示出更大的前景。