- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- Polyoxometalates: Synthesis and Applications
- Carbon dioxide utilization in catalysis
University of the Free State
2021-2023
Zeolitic imidazolate frameworks (ZIFs), such as ZIF-8 and ZIF-67, were found to be efficient catalysts. However, ZIFs are not used much in photocatalysis due their low photocatalytic activity for most reactions. The can improved by modifying the framework exchanging Zn(II) ions (ZIF-8) Co(II) (ZIF-67) with a more photocatalytically active metal(II) ion form an bimetallic ZIF photocatalyst. Redox-active iron (Fe)-based materials known highly potent photocatalysts. Thus, incorporating into...
Abstract The metal centres of nano-ZIF-8(Zn) and nano-ZIF-67(Co) were partially exchanged with titanium to form bimetallic nZIF-8(Zn/Ti) (52% Ti 4+ ) nZIF-67(Co/Ti) (38% respectively, for enhanced photocatalytic performance. A morphological structural analysis by SEM, EDS-Mapping PXRD showed that the particle size, distribution, integrity Sodalite frameworks parent ZIFs retained during exchange process new Ti-ZIFs. FTIR confirmed no additional chemical bonds formed process. XPS binding...