ZIF-8 synthesis conditions for different samples.

Sample name	Crs routea	Solvent	Crs timea (h)	Zn/Hmim molar ratio
M1	Mixing	Methanol	6	1/8
M2		DMF	6	1/8
M3		Water	6	1/8
H1	Solvothermal	Methanol	12	1/8
H2		DMF	12	1/8
H3		Water	12	1/8
S1	Sonochemical	Methanol	1	1/8
S2		DMF	1	1/8
S3		Water	1	1/8

^aCrystallization.