China Suppliers Factory of MIL-100(Fe) Powder Metal Organic Frameworks (MOFs) for Gas Adsorption and Separation

MIL-100(Fe) can maintain to be remarkably stable under a large scope of water vapor pressures or treatment with boiling water. On the one hand, iron, the metal center of MIL-100(Fe), is cheap, nontoxic, and environmentally friendly compared with other metals (i.e., Co, Cr, etc), which also makes MIL-100(Fe) welcome. On the other hand, MIL-100(Fe) as a supporting matrix possesses distinctive characteristics including high thermal stability (up to 280 °C in air and 340 °C in N₂) and mesoporous structure enabling easy and rapid diffusion of reactant molecules.

MIL-100(Fe) was found to show a good performance in gas adsorption and separation. First, MIL-100(Fe) with mesoporous cages could be a potential water vapor adsorbent. According to its water sorption isotherm at 30 °C, MIL-100(Fe) showed outstanding water sorption uptakes up to 0.873 g H₂O per g dry absorbent at partial pressures of over 0.5. This value for MIL-100(Fe) absorbent was much higher than those of commercial adsorbents including NaX (0.336 g/g), SAPO-34 (0.330 g/g), and silica gel (0.327 g/g). In contrast to the conventional porous materials which needed to be dehydrated at high temperature before use, the MIL-100(Fe) adsorbent required a dehydration temperature of 70 °C. The excellent performance in water vapor adsorption exhibited by MIL-100(Fe) suggested commercially viable application of energy-efficient desiccant dehumidification.