Śmigiel Julia, Muzioł Tadeusz, Piszczek Piotr, Radtke Aleksandra
Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
Materials (Basel). 2022 Jun 22;15(13):4408. doi: 10.3390/ma15134408.
The titanium oxo complexes are widely studied, due to their potential applications in photocatalytic processes, environmental protection, and also in the biomedical field. The presented results concern the oxo complex synthesized in the reaction of titanium(IV) isobutoxide and acetylsalicylic acid (Hasp), in a 4:1 molar ratio. The structure of isolated crystals was solved using the single-crystal X-ray diffraction method. The analysis of these data proves that [TiO(OBu)(asp)]·HO () complex is formed. Moreover, the molecular structure of () was characterized using vibrational spectroscopic techniques (IR and Raman), C NMR, and UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS). The photocatalytic activity of the synthesized complex was determined with the use of composite foils produced by the dispersion of () micrograins, as the inorganic blocks, in a polycaprolactone (PCL) matrix (PCL + ()). The introduction of () micrograins to the PCL matrix caused the absorption maximum shift up to 425-450 nm. The studied PCL + () composite samples reveal good activity toward photodecolorization of methylene blue after visible light irradiation.
由于钛氧配合物在光催化过程、环境保护以及生物医学领域的潜在应用，它们受到了广泛研究。所呈现的结果涉及在异丁醇钛（IV）与乙酰水杨酸（Hasp）以4:1摩尔比反应中合成的氧代配合物。使用单晶X射线衍射法解析了分离出的晶体结构。对这些数据的分析证明形成了[TiO(OBu)(asp)]·HO ()配合物。此外，利用振动光谱技术（红外和拉曼）、碳核磁共振以及紫外可见漫反射光谱（UV-Vis DRS）对()的分子结构进行了表征。通过将()微晶作为无机块分散在聚己内酯（PCL）基质（PCL + ()）中制备复合箔片，测定了合成配合物的光催化活性。将()微晶引入PCL基质导致吸收最大值上移至425 - 450 nm。所研究的PCL + ()复合样品在可见光照射后对亚甲基蓝的光脱色显示出良好的活性。
