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Improvement on physical properties of polyethersulfone membranes modified by poly(1‐vinylpyrrolidone) grafted magnetic Fe 3 O 4 @SiO 2 nanoparticles
Author(s) -
Mosaffa Elias,
Ghafuri Hossein,
Esmaili Zand Hamid Reza
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.4639
Subject(s) - membrane , ultrafiltration (renal) , ultimate tensile strength , chemical engineering , chemistry , nanoparticle , polymer chemistry , nuclear chemistry , n vinylpyrrolidone , elongation , materials science , polymer , copolymer , composite material , chromatography , organic chemistry , biochemistry , engineering
Polyethersulfone (PES) and poly(1‐vinylpyrrolidone) (PVP) were used to prepare ultrafiltration membranes with grafted Fe 3 O 4 magnetic nanoparticles (PVP‐g‐Fe 3 O 4 @SiO 2 ). The structure of synthesized PVP‐g‐Fe 3 O 4 @SiO 2 was confirmed by FT‐IR and SEM analysis. Physical properties of blend membranes such as thermal resistance, Tensile strength, water uptake, and hydrophilicity were also investigated. Blended membranes of PES/PVP‐g‐Fe 3 O 4 @SiO 2 have exhibited higher thermal resistance due to increasing the modified nanoparticle content. The hydrophilicity of the synthesized PES/PVP‐g‐Fe 3 O 4 @SiO 2 membranes also improved by increasing the PVP‐g‐Fe 3 O 4 @SiO 2 content. As expected, increasing the hydrophilicity of blended membrane, caused enhancement of fouling resistance in membranes. Results showed that the content of PVP‐g‐Fe 3 O 4 @SiO 2 has different effects on the properties of synthesized composite membranes. Despite increasing the content of PVP‐g‐Fe 3 O 4 @SiO 2 has a negative effect on elongation, positive effects on maximum stress was observed. Moreover, the water uptake of synthesized membranes was significantly enhanced in comparison to other similar studies.