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Development of mesoporous titanium dioxide hybrid poly(vinylidene fluoride) ultrafiltration membranes with photocatalytic properties
Author(s) -
Zhao Jianquan,
Liao Chanjuan,
Liu Jing,
Shen Xinyu,
Tong Hua
Publication year - 2016
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.43427
Subject(s) - materials science , titanium dioxide , photocatalysis , chemical engineering , thermogravimetric analysis , mesoporous material , phase inversion , differential scanning calorimetry , membrane , scanning electron microscope , thermal stability , ultrafiltration (renal) , fourier transform infrared spectroscopy , polymer , composite material , chemistry , organic chemistry , chromatography , biochemistry , physics , engineering , thermodynamics , catalysis
ABSTRACT A photocatalytic activity ultrafiltration membrane (UFM) was prepared by the blending of a poly(vinylidene fluoride) (PVDF) polymer with mesoporous titanium dioxide (M‐TiO 2 ) particles via the phase‐inversion method. The microstructure of the membrane and Ti element distribution were characterized by scanning electron microscopy and energy‐dispersive X‐ray spectroscopy. Their properties were also determined by thermogravimetric analysis, differential scanning calorimetry, Fourier transform infrared spectroscopy, tensile stress tests, contact angle tests, bovine serum albumin retention, water flux, and permeation flux. When the M‐TiO 2 concentration reached 1 wt %, the thermal stability, mechanical properties, hydrophilicity, flux, and antifouling performance of the M‐TiO 2 /PVDF UFM were improved to an optimal value with the M‐TiO 2 particles successfully entrapped and evenly distributed throughout the PVDF polymer matrix. Compared with the P25‐modified PVDF UFM (1 wt %), the M‐TiO 2 ‐modified PVDF UFM (1 wt %) exhibited better photocatalytic activity and wonderful stability in the UV photocatalytic degradation of the organic dye Rhodamine B. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43427.