Fabrication of Polyacrylonitrile/Silica Electrospun Nanofibrous Membranes for Water/Oil Filtration
Paper ID : 1167-MST2015-FULL
1Abolfazl Dastbaz *, 2Zahra Dastbaz, 3Mohammad Hossein Sarrafzadeh
1Department of Chemical engineering, University of Tehran, Tehran, Iran
2Department of Chemical Engineering, College of Engineering, University of Ferdowsi, Mashhad, Iran
3UNESCO Chair on Water Reuse, School of Chemical Engineering, College of Engineering, University of Tehran, Iran
This paper focused on the preparation of polyacrylonitrile (PAN) composite nanofibrous membranes with 1, 3, and 5% w/w content of modified Silica nanoparticles in order to improve their mechanical properties, thermal stability and water filtration performance for the possible application as water filtration membranes. So, a variety of techniques such as FTIR, liquid entry pressure (LEP) and tensile test were applied to explore the effects of nano particles and surface modification on the surface chemistry, structure and performance of the membranes. As a result, incorporation of Silica nanoparticles enhanced the mechanical properties of the membranes while resulted in significant improvement of their thermal properties. Furthermore, PAN/SiO2 membranes showed excellent oil/water separation performance, while incorporation of SiO2 led to decrease in LEP and increase in water flux rate, which is considered as a key point in water filtration membranes. These results signified the potential of electrospun PAN/SiO2 nanofibrous membranes to be used for water filtration applications.
Polyacrylonitrile, Modified Silica, Nanofibrous Membrane, Oily Water, Filtration
Status : Paper Accepted (Oral Presentation)