Journal
MATERIALS
Volume 11, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/ma11040481
Keywords
SiO2 nanoparticles; breath figure method; ordered porous membrane; ice substrate
Categories
Funding
- National Natural Science Foundation of China [21404065, 21375069, 21574072, 21675091]
- Natural Science Foundation for Distinguished Young Scientists of Shandong Province [JQ201403]
- Taishan Young Scholar Program of Shandong Province [tsqn20161027]
- Key Research and Development Project of Shandong Province [2016GGX102028, 2016GGX102039]
- Project of Shandong Province Higher Educational Science and Technology Program [J15LC20]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars of State Education Ministry [20111568]
- People's Livelihood Science and Technology Project of Qingdao [166257nsh, 173378nsh]
- China Postdoctoral Science Foundation [2014M561886, 2015T80695]
- Postdoctoral and the Doctoral Scientific Research Foundation of Qingdao
- First Class Discipline Project of Shandong Province
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Porous permeable films materials have very broad prospects in the treatment of sludge-containing waste water due to their large surface area and good microfiltration. In this work, highly ordered porous membranes have been prepared successfully on ice substrates using a poly(phenylene oxide) (BPPO)-SiO2 nanoparticle (NP) mixture by the breath figure method. Based on the theory of Pickering emulsion system and capillary flow, particle assisted membrane formation was analyzed. Another two sorts of new membranes SiO2/C membrane and hierarchical porous polymer (HPP) membrane, which were obtained by modification of the BPPO-SiO2 membrane by calcination and etching, were set up in a further study. Their properties were investigated through the methods of scanning electron microscopy (SEM), fourier transform infrared spectrometry (FTIR), ultraviolet spectrum (UV), capillary electrophoresis (CE), contact angle, and water flux tests. All these results demonstrate that both surface hydrophilicity and fouling resistance of the membrane would be improved by using SiO2 as a filler. The membranes with high permeability and antifouling properties were used for microfiltration applications.
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