Synthesis of ZIF-8
ZIF-8 nanoparticles were synthesized by following the method, which is
available in the literature43. Typically, 1.8 g of Zn
(NO3)2·6H2O and 4.0 g of
2-methylimidazole were mixed in 100 ml methanol separately, then they
were mixed and remained stirred for the next 1 hr. Afterward, the white
product was centrifuged (TG16-WS CENCE Company Ltd. P.R.China) and
rinsed with methanol two times and dried in an oven at 60°C.