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Fouling Resistant Polysulfone–PANI/TiO2 Ultrafiltration Nanocomposite Membranes
- Source :
- Industrial & Engineering Chemistry Research. 52:9470-9479
- Publication Year :
- 2013
- Publisher :
- American Chemical Society (ACS), 2013.
-
Abstract
- To avoid particle agglomeration and to improve membrane antifouling property, commercial TiO2 particles were modified with polyaniline (PANI) by in situ polymerization. SEM and FTIR analysis confirmed the incorporation of PANI on the surface of the TiO2 particles. The average size of PANI/TiO2 nanoparticles is in the range of 10–67 ± 3 nm. The preparednanoparticles are used as surface and inner nanofiller additives and dispersed into the polysulfone (PSf) to obtain ultrafiltration nanocomposite membranes via phase inversion method. The surface hydrophilicity of nanocomposite membrane increases with increasing nanoparticles (0 to 1.5 wt %) concentrations. The membrane morphology indicates that nanocomposite membranes exhibited larger surface pore size, higher porosity, more finger-like pores, and less macrovoids than the control PSf membrane. The experimental results indicate that the 1.0 wt % of PANI/TiO2 content membrane depicted excellent hydrophilicity, water permeability, and better antifouling property with high rejection. Bovine serum albumin and humicacid were used as model foulants. The protein adsorption study showed that PANI/TiO2 content membranes adsorbed more at the isoelectric point of BSA solution and decreased as the solution pH increases. Higher nanoparticles content (1.5 wt %) membrane outcomes are elucidated and affected and resulted in significant particle agglomeration. Finally, obtained experimental results show that the nanocomposite membranes have higher flux and better antifouling property than the control PSf membrane.
- Subjects :
- Nanocomposite
Materials science
General Chemical Engineering
Ultrafiltration
Nanoparticle
General Chemistry
TP Chemical technology
Industrial and Manufacturing Engineering
chemistry.chemical_compound
Membrane
chemistry
Chemical engineering
Polyaniline
Polymer chemistry
TD Environmental technology. Sanitary engineering
Polysulfone
In situ polymerization
Phase inversion (chemistry)
Subjects
Details
- ISSN :
- 15205045 and 08885885
- Volume :
- 52
- Database :
- OpenAIRE
- Journal :
- Industrial & Engineering Chemistry Research
- Accession number :
- edsair.doi.dedup.....7b48bb504a4f96b8925cc189972ed031