“…[22] Other MOFs like iron-based MOF (MIL 101) (MIL stands for Material of Institut Lavoisier), zinc based MOF-5, MOF-177, zeolitic imidazolate frameworks, i.e., ZIF-8, and ZIF-90 have also been used to synthesize NPs confined within the crystal framework. [23][24][25] However, these MOF materials, used as templates, might possess drawbacks of potential health hazards in reason of the metals used for their formation. The synthesis process requires either high heat, pressure or radiation to undergo reduction of metal ions.…”