The application of organic photocatalysts towards the oxidation of pollutants in water is hampered by different limitations such as their insolubility in the media. Herein, we report that the grafting of a photo-organocatalyst into mesoporous silica materials is an ideal approach to obtain effective catalysts. Thereby, the photocatalyst 10-phenylphenothiazine (PTH) was easily anchored into three different mesoporous silica-based materials (MSN, MSU-2 and SBA-15) with different particle sizes and pore sizes through an amide bond formation. The materials were characterized using IR analysis, solid-state X-ray diffraction, porosity and microscopy (SEM and TEM) techniques, showing that PTH is immobilized inside the pores of the materials and its optical properties are maintained after the anchoring. Although homogeneous PTH was inactive in water media, the three photocatalytic materials were active for the degradation of pollutants. SBA-15-AP-PTH exhibited the highest catalytic performance towards the degradation of acetaminophen and diclofenac under solar irradiation, finding in this manner a new strategy for the decontamination of pollutants.

有机光催化剂在水中污染物氧化的应用受到不同限制的阻碍，例如它们在介质中的不溶解性。在此，我们报告将光有机催化剂接枝到介孔二氧化硅材料中是获得有效催化剂的理想方法。因此，光催化剂 10-苯基吩噻嗪 (PTH) 很容易通过酰胺键形成锚定到三种不同粒径和孔径的介孔二氧化硅基材料（MSN、MSU-2 和 SBA-15）中。使用 IR 分析、固态 X 射线衍射、孔隙率和显微镜（SEM 和 TEM）技术对材料进行了表征，表明 PTH 固定在材料的孔内，并且在锚定后其光学特性得以保持。尽管均质 PTH 在水介质中没有活性，这三种光催化材料对污染物的降解具有活性。SBA-15-AP-PTH 在阳光照射下对乙酰氨基酚和双氯芬酸的降解表现出最高的催化性能，以这种方式发现了一种新的污染物净化策略。