Textile waste, dyes/inorganic salts separation of cerium oxide-loaded loose nanofiltration polyethersulfone membranes
| Autor: | Tohid Tavangar, Mashallah Rezakazemi, Kakarla Raghava Reddy, Mohammad Karimi, Tejraj M. Aminabhavi |
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| Rok vydání: | 2020 |
| Předmět: |
Cerium oxide
Materials science Nanocomposite Aqueous solution General Chemical Engineering Nanoparticle 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Congo red Contact angle chemistry.chemical_compound Membrane chemistry Chemical engineering Environmental Chemistry Nanofiltration 0210 nano-technology |
| Zdroj: | Chemical Engineering Journal. 385:123787 |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2019.123787 |
| Popis: | Poly(ether sulfone) (PES) loose nanofiltration nanocomposite membranes were prepared by incorporating cerium oxide (CeO2) nanoparticles (NPs) via a non-solvent induced phase separation technique. The influence of NPs on thermodynamic and kinetic aspects of phase separation was studied by phase diagram construction and viscosity measurement. FESEM images exhibited asymmetric structure of the membranes with a dense top layer, while contact angle measurements confirmed improved membrane hydrophilicity. The performances of the membranes were tested by aqueous dye solutions viz., Direct Red 23, Congo Red, and Direct Red 243 as well as real textile wastewater. Low rejection rates were observed for different aqueous salt solutions following the sequence: MgSO4 (4.1%) > Na2SO4 (3.3%) > MgCl2 (1.8%) > NaCl (1.2%). The nanocomposites exhibit remarkable antifouling properties compared to the pristine membrane. |
| Databáze: | OpenAIRE |
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