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Highly Antifouling Polymer-Nanoparticle-Nanoparticle/Polymer Hybrid Membranes Publisher Pubmed



Vatanpour V1 ; Jouyandeh M2 ; Mousavi Khadem SS2 ; Paziresh S1 ; Dehghan A1 ; Ganjali MR2, 3, 4 ; Moradi H5 ; Mirsadeghi S6 ; Badiei A7 ; Munir MT8 ; Mohaddespour A8 ; Rabiee N9 ; Habibzadeh S10 ; Mashhadzadeh AH11 Show All Authors
Authors
  1. Vatanpour V1
  2. Jouyandeh M2
  3. Mousavi Khadem SS2
  4. Paziresh S1
  5. Dehghan A1
  6. Ganjali MR2, 3, 4
  7. Moradi H5
  8. Mirsadeghi S6
  9. Badiei A7
  10. Munir MT8
  11. Mohaddespour A8
  12. Rabiee N9
  13. Habibzadeh S10
  14. Mashhadzadeh AH11
  15. Nouranian S12
  16. Formela K13
  17. Saeb MR14

Source: Science of the Total Environment Published:2022


Abstract

We introduce highly antifouling Polymer-Nanoparticle-Nanoparticle/Polymer (PNNP) hybrid membranes as multi-functional materials for versatile purification of wastewater. Nitrogen-rich polyethylenimine (PEI)-functionalized halloysite nanotube (HNT-SiO2-PEI) nanoparticles were developed and embedded in polyvinyl chloride (PVC) membranes for protein and dye filtration. Bulk and surface characteristics of the resulting HNT-SiO2-PEI nanocomposites were determined using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA). Moreover, microstructure and physicochemical properties of HNT-SiO2-PEI/PVC membranes were investigated by scanning electron microscopy (SEM), atomic force microscopy (AFM), and attenuated total reflectance (ATR)-FTIR. Results of these analyses indicated that the overall porosity and mean pore size of nanocomposite membranes were enhanced, but the surface roughness was reduced. Additionally, surface hydrophilicity and flexibility of the original PVC membranes were significantly improved by incorporating HNT-SiO2-PEI nanoparticles. Based on pure water permeability and bovine serum albumin (BSA)/dye rejection tests, the highest nanoparticle-embedded membrane performance was observed at 2 weight percent (wt%) of HNT-SiO2-PEI. The nanocomposite incorporation in the PVC membranes further improved its antifouling performance and flux recovery ratio (96.8%). Notably, dye separation performance increased up to 99.97%. Overall, hydrophobic PVC membranes were successfully modified by incorporating HNT-SiO2-PEI nanomaterial and better-quality wastewater treatment performance was obtained. © 2021
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