Enantiopure Metal-Organic Framework Thin Films: Oriented SURMOF Growth and Enantioselective Adsorption

摘要

Growing effort is being paid to metal-organic frameworks (MOFs), in the form of microcrystalline powder materials, for the storage, capture and separation of gases and for applications in catalysis.The demand of integrating MOFs into analytical sensing devices and smart membranes is stimulating the development of MOF thin-film possessing techniques of various kinds. In this respect, the layer-by-layer (LBL) liquid-phase epitaxial (LPE) growth method is quite attractive for depositing multilayers or small crystallites of surface-attached MOFs (SURMOFs) in an automatic and thus very controlled fashion. This stepwise MOF synthesis and deposition scheme can be coupled with in-situ process monitoring by UV/Vis spectroscopy, surface plasmon resonance spectroscopy (SPR), or by quartz crystal microbalance techniques (QCM) and provides unique opportunities to study the (SUR)MOF growth mechanism and is advantageous for MOF-based sensor fabrication.