Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8016747 | Materials Letters | 2016 | 4 Pages |
Abstract
A hemin/ZIF-8 composite has been prepared for the first time by one-pot via chemical bond interactions between ZIF-8 and hemin molecules. TEM, EDX and BET analysis suggest that hemin/ZIF-8 has mesoporous structure and hemin is uniformly distributed in the framework of ZIF-8. FTIR analysis shows that the -COOH groups are combined with metal ion. XRF analysis shows that the loading amount of hemin in the composite is 3.32%. It shows a good peroxidase-like activity for the oxidation of substrate 3,3,5,5-tetramethylbenzidine (TMB) in the presence of H2O2 in aqueous solution. We discover that the imidazole, metal ion and pure ZIF-8 can improve activity of hemin, especially the imidazole. So the microenvironment provided by ZIF-8 plays an important role in improving the catalytic activity.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Danlin Li, Songhai Wu, Feifei Wang, Shaoyi Jia, Yong Liu, Xu Han, Liwei Zhang, Shuliang Zhang, Yuming Wu,