structure of HPW retains on the prepared composite catalysts. The photocatalytic performance of HPW/MCM‐41 was examined by degradation of a durable pesticide imidacloprid. It is found that the prepared photocatalysts exhibit high activity under irradiation of 365 nm monochromatic light. For 50 mL of imidacloprid (10 mg/L), conversion of imidacloprid using 20 mg of HPW/MCM‐41 with 50 wt% loading level and calcined
由多
金属氧酸盐(POM)构成的固体催化剂,即
磷钨酸H 3 PW 12 O 40制备了在中孔筛MC
M-41上负载的(HPW)并通过FT-IR,X射线衍射,氮吸附和高分辨率透射电子显微镜(HR
TEM)进行了表征。HPW / MC
M-41具有不同的HPW负载(从10到60 wt%),具有较大的比表面积和相当均匀的中孔。HPW的Keggin结构保留在制备的复合催化剂上。HPW / MC
M-41的光催化性能通过持久性
杀虫剂吡虫啉的降解来检查。发现制备的光催化剂在365nm单色光的照射下表现出高活性。对于50 mL
吡虫啉(10 mg / L),使用20 mg HPW / MC
M-41负载量为50 wt%并在300°C下煅烧的
吡虫啉转化率在5 h后达到58.0%。