Effective Formaldehyde Capture by Green Cyclodextrin-Based Metal–Organic Framework

Abstract

A kind of metal-organic framework made from γ-cyclodextrin (γ-CD) and potassium ions were explored as excellent formaldehyde (HCHO) absorbents. The adsorption capacity and speed of γ-CD-MOF-K are both about 9 times higher than those of activated carbon, which are attributed to the porous structure and synergistic effect of hydrogen bonding and host-guest interactions.

Facile stabilization of a cyclodextrin metal–organic framework under humid environment via hydrogen sulfide treatment

“…It has been demonstrated that g-CD-K-MOF showed effective formaldehyde adsorption capability. 36 Fig. 5 showed the formaldehyde adsorption behaviour of g-CD-K-MOF and g-CD-K-MOF-H 2 S. In this study, formaldehyde gas was obtained by heating formaldehyde solution.…”

“…But it should be noticed that g-CD-K-MOF-H 2 S still showed a formaldehyde adsorption capacity three times higher than that of activated carbon. 36…”

“…Previously, our group have demonstrated that g-CD-K-MOF showed high selective adsorption capability and speed for formaldehyde owing to the host-guest interactions between g-CD and HCHO and hydrogen bonding with hydroxyl groups. 36 However, these applications face severe challenges associated with the poor stability of g-CD-K-MOF, which rapidly decomposed when in contact with moisture. Up to now, only few studies have been reported for the improvement of moisture stability of g-CD-K-MOF.…”

A new route to triphenylpyridines utilizing ketoximes as building blocks via cascade reactions under iron‐organic framework catalysis

“…The last two decades have witnessed a rapid development of research on metal–organic frameworks (MOFs), a notable class of highly crystalline polymeric materials, self‐assembled from organic linkers with metal ions or metal clusters . Owing to their diverse porous structures with various connectivity and symmetry, MOFs have been extensively explored for applications in numerous fields, ranging from adsorption to biomedical engineering .…”

Capturing Volatile Organic Compounds Employing Superalkali Species

“…Activated carbon is one of the most widely used materials for capture through adsorption . More recent studies utilize different nanoporous materials such as zeolites and metal‐organic framework . Not only adsorption but regenerating the adsorbents has been studied as well to see the desorption behaviour of VOCs…”