Abstract
In this work, hydrophobic silica membranes with phenyl groups were prepared by a sol-gel method using phenyltrimethoxysilane (PhTMS) as the silica precursor. The effect of the hydrolysis and condensation reaction of the PhTMS sol on the separation performance by pervaporation (PV) was investigated. To prepare a membrane for separation of ethyl acetate from water, the optimum reaction time for the silica sol was 3h. Membranes were also prepared under the same conditions using ethyltrimethoxysilane (ETMS), n-propyltrimethoxysilane (PrTMS), isobutyltrimethoxysilane (BTMS), and hexyltrimethoxysilane (HTMS) as the silica precursors. PV was carried out using the ETMS, PrTMS BTMS, and HTMS membranes to separate organic compounds (5% mass fraction) from water at 295K. The results indicated that the flux of an organic compound was related to the difference between the Hansen solubility parameters of the membrane and that of the organic compound.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
