Preparation and Characterization of BaBi2Nb2O9/PVDF Inorganic-Organic Composite Ultrafiltration Membranes

Dong Hua Zhang; Li Jing Pan; Da Zhi Sun

doi:10.4028/www.scientific.net/AMR.681.309

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Preparation and Characterization of BaBi₂Nb₂O₉/PVDF Inorganic-Organic Composite Ultrafiltration Membranes
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 681Preparation and Characterization of...

Preparation and Characterization of BaBi₂Nb₂O₉/PVDF Inorganic-Organic Composite Ultrafiltration Membranes

Abstract:

BaBi2Nb2O9/PVDF (polyvinylidene ﬂuoride) composite ultraﬁltration (UF)membranes were prepared by alloying BaBi2Nb2O9 (BBN) particles uniformly in the PVDF solution (15% polymer weight) and used a phase-inversion method. This paper studied the effect of the concentration of BBN from 0% to 5% in 0.2Mpa on pure water flux and rejection rate to Bovine serum albumin (BSA). The cross-sectional structures of composite membranes were observed by scanning electron microscopy (SEM). Moreover, XRD results revealed the crystal structure of PVDF. The experimental results showed that the BBN/PVDF composite ultraﬁltration membranes were superior in separation performances than the pure PVDF membranes due to the addition of BBN.