ZIF-8 coated polyvinylidenefluoride (PVDF) hollow fiber for highly efficient separation of small dye molecules
Source abstract
Abstract
Abstract Molecular separation membranes with high permeance and enhanced rejection are strongly requested to meet rising worldwide demand for dye-wasted water purification and drug production industries. Highly porosity and tunable nanopores of metal organic frameworks have been wildly investigated for gas separation but rarely applied for liquid separation, due to their instability, hard to form continuous thin films which was strongly adhered on porous support, especially on polymer hollow fibers. In this work, by using gelatin-assisted growth process, well continuous about 2 μm thick ZIF-8 membranes strong adhered on both inner side and outside surface of macroporous polyvinylidenefluoride (PVDF) hollow fibers were successfully prepared. The prepared ZIF-8/gelatin/PVDF membranes demonstrated excellent separation performance for Rhodamine B molecules from water with permeance of 137 L m−2 h−1 bar−1 and rejection up to 97.5%, which holds the great potential to extent MOFs-related materials for dye-wasted water purification.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Membrane Separation and Gas Transport · Membrane Separation Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
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