The preparation of covalently linked manganese(III) meso-tetrakis(2,6-dichlorophenyl)porphyrin acetate to aminopropyl functionalized silica gel and its full characterization by standard spectroscopic methods including Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG) and scanning electronic microscopy (SEM) is described. The supported metalloporphyrin was evaluated as catalyst in the degradation of trimethoprim (TMP), using hydrogen peroxide as green oxidant. Catalyst was reused for five consecutive cycles without significant loss of activity or catalyst degradation/leaching. Degradation products were identified by UHPLC-MS, allowing to propose a plausible degradation pathway. Furthermore, ecotoxicity (EC50 and EC20) of TMP-based solutions (before and after degradation) were evaluated towards the bacterium V. fischeri, the microalgae R. subcapitata and the invertebrate B. calyciflorus.

共价连接的锰（III）内消旋体的制备描述了将四（2,6-二氯苯基）卟啉乙酸酯转化为氨基丙基官能化的硅胶，并通过包括傅里叶变换红外光谱（FTIR），热重分析（TG）和扫描电子显微镜（SEM）在内的标准光谱方法对其进行了全面表征。使用过氧化氢作为绿色氧化剂，评估了负载的金属卟啉作为甲氧苄氨嘧啶（TMP）降解的催化剂。催化剂可重复使用五个连续周期，而活性没有明显损失或催化剂降解/浸出。通过UHPLC-MS鉴定了降解产物，从而提出了可行的降解途径。此外，还评估了基于TMP的溶液（降解前后）的生态毒性（EC50和EC20）对细菌V. fischeri（微藻）的影响。R.subcapitata和无脊椎动物B.calyciflorus。