Fabrication and properties of ultrafiltration membranes composed of polysulfone and poly(1-vinylpyrrolidone) grafted silica nanoparticles
- Authors
- Song, H. J.; Kim, C. K.
- Issue Date
- 1-Oct-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Ultrafiltration membrane; Polysulfone; PVP-g-silica nanoparticles; Hydrophilicity; Fouling resistance
- Citation
- JOURNAL OF MEMBRANE SCIENCE, v.444, pp 318 - 326
- Pages
- 9
- Journal Title
- JOURNAL OF MEMBRANE SCIENCE
- Volume
- 444
- Start Page
- 318
- End Page
- 326
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/14226
- DOI
- 10.1016/j.memsci.2013.05.024
- ISSN
- 0376-7388
- Abstract
- Membranes for ultrafiltration were prepared from polysulfone (PSf) composites with poly(1-vinylpyrrolidone) grafted silica nanoparticles (PVP-g-silica). For the synthesis of PVP-g-silica, hydroxyl terminated silica nanoparticles were reacted with (3-methacryloxypropyl)trimethoxysilane (gamma-MPS) to form gamma-MPS terminated silica nanoparticles (silica-MPS), which were further reacted with VP monomer. Formation of PVP-g-silica was confirmed by FT-IR, XPS, TGA, FE-SEM, and HR-TEM. PSf/PVP-g-silica membranes exhibited higher water flux than PSf membranes without any loss in solute rejection for membranes containing less than or equal to 5 wt% of PVP-g-silica. The water flux of a membrane containing 1 wt% PVP-g-silica was 2.3 times higher than that of PSf membrane. The hydrophilicity of the PSf/PVP-g-silica membrane also increased with increasing PVP-g-silica content. The hydrophilicity of the PSf/PVP membrane decreased with increasing retention time in a water bath, while the hydrophilicity of the PSf/PVP-g-silica membrane did not change with retention time. PSf/PVP-g-silica membranes exhibited enhanced fouling resistance in fouling experiments using nonionic surfactants. (C) 2013 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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