What does a peak at 281.5 eV indicate in the C1s spectrum of ZIF-8?

I have done the XPS analysis of ZIF-8 and ZIF-8-derived ZnO. In both, I got peaks at 281.5 eV and 282.4 eV respectively for ZIF-8 and ZIF-8-derived ZnO. What do these peaks infer? The binding...

21 December 2022 1,119 2 View