Zeolitic imidazolate framework-93 (ZIF-93) continuous membranes were synthesized on the inner side of P84 co-polyimide hollow fiber supports by microfluidics. MOFs and polymers showed high compatibility and the membrane exhibited H2-CH4 and CO2-CH4 separation selectivities of 97 (100 °C) and 17 (35 °C), respectively.

Four organic amine-based solvents were discovered which enable direct exfoliation of graphite to produce high-quality and oxygen-free graphene nanosheets. These solvents outperform previously used solvents and additives such as N-methyl-pyrrolidone and surfactants in terms of their dispersing capacity. The resulting dispersions allow the facile fabrication of zeolitic imidazolate framework (ZIF...

Zeolitic imidazolate frameworks (ZIFs) undergo pressure-induced phase transitions that are peculiar to each ZIF. The transition is associated with the rotation of imidazolate, and it accompanied by an increase their pore openings, affecting ZIFs performance in separation processes. This phenomenon known as gate opening or swing effect. Here we report metal dependence ambient pressure high (HP) ...

In this study, polymeric nanocomposites of zeolitic imidazolate frameworks (ZIFs) were synthesized by assembly a biomimetic polymer-polydopamine (PDA)onto halloysite nanotubes (HNTs@PDA), followed the in situ growth framework-8 (ZIF-8) on surface HNTs@PDA. The obtained (HNTs@PDA/ZIF-8) prevented agglomeration ZIFs and increased number active sites derived from PDA. factors influencing heavy met...

The use of antibiotics and dyes has resulted in severe water pollution health risks; therefore, it is urgent to remove them from sources. Among the most common methods for removing harmful contaminants, adsorption photodegradation are economical, simple, reusable. Due their high porosity, adjustability, crystal structure, metal-organic frameworks (MOFs) one effective adsorbents photocatalysts. ...

The synthesis of metal-organic framework (MOF) thin films has garnered significant attention during the past decade. By better understanding the parameters governing the nucleation and growth of such thin films, their properties can be rationally tuned, empowering their application as (reactive) membranes. Here, a combined AFM-vibrational spectroscopy research strategy is employed to detail the...

Zeolitic imidazolate frameworks (ZIFs) have attracted great interest in recent years due to their high chemical and thermal stability with promising applications in gas storage and separations. We investigate the structures of three different crystalline ZIFs - ZIF-4, ZIF-8, ZIF-zni - and their amorphous counterparts using high field (13)C and (15)N CP MAS NMR. The high field (20 T) allows for ...

A wound evolves with variable pHs depending on the healing stage, and maintenance of mild acidic condition can help by deterring formation a biofilm. Herein, dual-layer dressing an acid-responsive zeolitic imidazolate framework–8 (ZIF-8) layer acid-modulating is designed to control acid-dependent release therapeutic agents for improved process. The outer coated curcumin-incorporated ZIF-8, wher...