Abstract
Novel thin-film nano-composite membranes containing SiO2 nano-particles are successfully fabricated via interfacial polymerization with trimesoyl chloride (TMC), sulfonated poly(arylene ether sulfone) copolymers and silica (SiO2) nano-particles on a polysulfone (PS) support membrane. Sulfonated poly(arylene ether sulfone) copolymers containing carboxylic and amino groups (cPES) are successfully prepared via direct polymerization as novel thin-film composite (TFC) reverse osmosis (RO) membrane material. Mesoporous SiO2 nano-particles are also successfully synthesized. The synthesized cPES copolymers, SiO2 nano-particles and fabricated cPES membranes are characterized by nuclear magnetic resonance spectroscopy (NMR), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). The incorporation of SiO2 nanoparticles were confirmed by energy dispersive X-ray spectroscopy (EDX). Moreover, the effects of different fabrication conditions on performance are investigated. The cPES membrane with 1% (w/w) SiO2, which is cured at 70°C, exhibited the high salt rejection value (96.8%) with respect to NaCl and good water flux value (32 L/m2h).
Original language | English |
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Pages (from-to) | 69-75 |
Number of pages | 7 |
Journal | Desalination and Water Treatment |
Volume | 15 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 2010 Mar |
Keywords
- Desalination
- Nanocomposite membrane
- RO membrane
- Sulfonated poly(arylene ether sulfone)
ASJC Scopus subject areas
- Water Science and Technology
- Ocean Engineering
- Pollution