Structural modifications induced in ZIF-8 by interaction with Cu2+ions in water remediation applications
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Abstract
Metal-organic frameworks (MOF) are very promising materials, as they exhibit
many exciting properties inspiring many outstanding applications. One very intriguing
property of a class of MOF consists in their ability to breath, i.e. to undergo a crystalline
to-crystalline structural change, usually induced by modifying the temperature,
applying external pressure or by adsorbing of specific gases [1]. Such structural
changes in turn affect many properties of the material, further increasing the potential
applications of these materials. The advantages of the breathing process in sensing
applications, for example, are obvious. One of the most interesting breathing MOF is
MIL-53(Al) [2]. It has strong potentialities in many fields, as adsorption, separation and
storage of gases, catalysis, drug delivery, sensing [3,4]. Since its first report, MIL-53(Al)
has gained the role of prototype system, giving the opportunity to unveil many
properties pertaining to such outstanding class of highly reactive (breathing) MOF...