Working under stoichiometric conditions , ZIF - 8 could be obtained in 10 hours .
Working under stoichiometric conditions , ZIF - 8 could be does not require the use of ligand excess , additives , organic solvents or cleaning steps .
Working under stoichiometric conditions , ZIF - 8 could be obtained in 10 hours and does not require the use of ligand excess , additives , organic solvents or cleaning steps .