Mesoporous titania-silica (MTO) and mesoporous Pt-doped titania-silica (Pt@MTO) nanocomposites were synthesized by a facile synthesis procedure, and then, the nanocomposites were analyzed through a diverse range of techniques. XRD peaks and HRTEM images showed that the anatase phase of MTO and platinum was doped on the surface of the morphology of MTO as dots with an average size of 6 nm. Pt metallic nanoparticles were present in samples highly dispersed into mesoporous MTO. The varying portion of doping with Pt in the samples has a positive impact on the surface characteristics of nanocomposites. In addition, the increased ratio of Pt metallic nanoparticles in the samples reduced the band gap energies to 2.12 eV for 2.0% Pt@MTO and reduced the intensity of the emission spectrum by shifting the emission spectrum to a higher wavelength. The photocatalytic activity was measured by the degradation of ciprofloxacin (CIP) in the suspension. The 1.5% Pt@MTO photocatalyst fully photodegraded CIP after 60 min of irradiation. That performance exhibited excellent stability and recyclability.

通过简便的合成方法合成了介孔二氧化钛-二氧化硅（MTO）和掺杂Pt的二氧化钛-二氧化硅（Pt @ MTO）纳米复合材料，然后通过多种技术对其进行了分析。XRD峰和HRTEM图像显示MTO和铂的锐钛矿相掺杂在MTO形态的表面为点，平均大小为6 nm。铂金属纳米颗粒存在于高度分散到中孔MTO中的样品中。样品中Pt掺杂的变化部分对纳米复合材料的表面特性有积极影响。另外，样品中Pt金属纳米颗粒的比例增加，对于2.0％Pt @ MTO，带隙能降低到2.12 eV，并通过将发射光谱移动到更高的波长来降低发射光谱的强度。通过悬浮液中环丙沙星（CIP）的降解来测量光催化活性。照射60分钟后，1.5％Pt @ MTO光催化剂完全光降解了CIP。该性能显示出极好的稳定性和可回收性。