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Membranes with high water permeation capability as well as high rejection to dye molecules are very important for dye separation. In this study, a metal organic framework structure (Cu-BTC) was fabricated in situ on a poly(vinyl difluoride) hollow fiber support for nanofiltration of dye solution. In order to protect the Cu-BTC layer, the surface was coated by crosslinking polyvinyl alcohol. The composite...
Cu-BTC/PVDF composite membranes were prepared by immersing PVDF hollow fiber supporting membranes into copper acetate aqueous solution and trimesic acid ethanol solution repeatedly. Surface and cross sectional morphologies of Cu-BTC crystals on the supporting PVDF membrane were investigated using SEM. Chemical composition and crystal structure of Cu-BTC were characterized by IR and XRD. Gas permeance...
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