Effects of SIO2 nanoparticles on the structure of polyvinylidene fluoride ultrafiltration membrane
MetadataShow full item record
In this paper we describe the process of adding SiO, nanoparticles into a polyvinylidene fluoride (PVDF) casting solution to prepare inorganic-organic hybrid membranes. The hybrid membrane performance was improved compared with that of a pure PVDF membrane. Tests showed that the pure water flux of the membrane was improved without the decrease in the retention rate. The addition of SiO, nanoparticles induced a strong increase in the viscosity and made the casting operation easier. The phase diagram shows that the addition of SiO, nanoparticles decreases the water tolerance of the solution, and thus speeds up the membrane formation process. The DSC curves also revealed that the degree of crystallinity of PVDF has obviously increased in the hybrid membrane.
This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by/4.0
Showing items related by title, author, creator and subject.
Rajaeian, Babak (2012)Thin film composite (TFC) membranes have long been used by many large-scale applications (i.e., water and wastewater treatment). Recently, conventional polymeric TFC membranes are facing with short longevity due to high ...
Wang, X.; Zou, Y.; Meng, B.; Tan, X.; Wang, Shaobin; Liu, Shaomin (2018)Pd membranes can be applied to many hydrogenation or dehydrogenation reactions for chemical production. Such membrane reactors can realize the simultaneous separation and reaction in one unit. However, the Pd membrane is ...
Mineralization-inspired preparation of composite membranes with polyethyleneimine-nanoparticle hybrid active layer for solvent resistant nanofiltrationZhang, H.; Mao, H.; Wang, J.; Ding, R.; Du, Z.; Liu, Jian; Cao, S. (2014)Inspired by mineralization, a series of composite membranes with polymer-nanoparticle hybrid active layer were prepared via a generic and facile approach in this study for solvent resistant nanofiltration. Polyethyleneimine ...