eV corresponding to C-O, C=O, and Zn-O, respectively (Fig. ). Spectrum analysis of O 2p of CelloZIFPaper_Ex Situ shows only two peaks at the binding energy of 532.9 eV and 532.1 eV corresponding to C-O C=O, respectively (Fig. ). The data analysis indicates a stronger interaction between TOCNF and ZIF-8 crystals using the in-situ synthesis procedure than the exsitu procedure. This observation can be confirmed from the study of Zn 2p (Fig. ) as well. Both hybrid papers, i.e., CelloZIFPaper_In Situ and CelloZIFPaper_Ex Situ, show peaks at binding energies of 1045.3 eV and 1022.2 eV corresponding to Zn 2p1/2 and Zn 2p3/2, respectively (Fig. ). However, an extra peak corresponding to Zn-O was observed at a binding energy of 1024.4