Specific surface areas (BET and Langmuir), external surface area, and pore volumes are summarized in Table . When the ex-situ synthesis procedure was applied, the surface area increased with ZIF-8 loading (Table ). From the collected data, one can observe that both in-situ and ex-situ prepared papers with the lowest ratios (1:0.5) have the highest ZIF-8 loading (Table ). The in-situ synthesis procedure yielded higher ZIF-8 loading (70 wt.%) compared to the exsitu synthesis procedure (59 wt.%) at the low ratio of 1:0.5 (Table ). CelloZIFPaper was fabricated with a diameter of 200 mm and can be folded without significant damage (Figure ). CelloZIFPaperswere prepared via a-c) ex-situ procedure and d-i) in-situ procedure using cellulose: ZIF ratio of d-f) 1:0.5 and g-i) 1:4.