SnO_(2-x)/MoO_(3-y)制备及其拟过氧化物酶活性研究

Preparation and peroxidase-like activity of SnO_(2-x)/MoO_(3-y) nanocomposites

以(NH_4)6Mo_7O_(24)·4H_2O和SnCl_2·2H_2O为原料,采用异质絮凝法制备了核壳型SnO_(2-x)/MoO_(3-y)。用X射线粉末衍射仪(XRD)、透射电镜(TEM)及X射线光电子能谱仪(XPS)对复合物进行了表征,并在H_2O_2存在下,以3,3′,5,5′-四甲基联苯胺(TMB)为过氧化物酶底物,考察了其拟过氧化物酶活性。

SnO2-x/MoO3-y nanocomposites were prepared by using SnCl2·2H2O and （NH4）6Mo7O24·4H2O as raw materials via heterogeneous flocculation method. The products were characterized by XRD and TEM. Its peroxidase-like activity was investigated by catalyzing the reaction of peroxidase substrate 3,3＇, 5,5＇-tetramethylben- zidine（TMB） in the presence of H2O2.