KHCO 3 -CD-MOF synthesis was performed as previously reported in the literature. γ-cyclodextrin (324 mg, 0.25 mmol, 1.00 eq.), potassium bicarbonate (200 mg, 2.00 mmol, 8.00 eq.), methanol (8 ml), and deionized water (2 ml) were combined in a 25 ml Teflon autoclave. The mixture was sonicated and stirred at room temperature for 1 h. The autoclave was sealed and heated in an oven (140 • C, 4 days). The reaction was slowly cooled to room temperature in the oven following heating. The brown crystals were transferred and soaked in solvent (3 × 3 ml methanol then 3 × 3 ml dichloromethane), each soak was for 24 h before decanting and replacement with fresh solvent.