2024 : 10 : 12
Bandar Astinchap

Bandar Astinchap

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId: 24342779500
HIndex:
Faculty: Faculty of Science
Address:
Phone:

Research

Title
Novel antibifouling nanofiltration polyethersulfone membrane fabricated from embedding TiO2 coated multiwalled carbon nanotubes
Type
JournalPaper
Keywords
Mixed matrix membranes, Functionalized MWCNTs, Photocatalytic activity , Antibiofouling, Roughness
Year
2012
Journal SEPARATION AND PURIFICATION TECHNOLOGY
DOI
Researchers Vahid Vatanpour ، Sayed Siavash Madaeni ، Rostam Moradian ، Sirus Zinadini ، Bandar Astinchap

Abstract

Multiwalled carbon nanotubes (MWCNTs) coated by anatase titanium dioxide (TiO2) nanoparticles were synthesized via the precipitation of TiCl4 precursor on the acid oxidized MWCNTs and used in preparation of nanocomposite polyethersulfone (PES) membranes. In this work, the effect of embedding TiO2 coated MWCNTs in PES matrix on membrane morphology, properties and antibiofouling was presented and the obtained results were compared with the prepared oxidized MWCNTs and TiO2 blended PES membranes. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses showed that the formed TiO2 on the surface of MWCNTs had anatase nanostructure with size in the range of 10–20 nm. The scanning electron microscopy (SEM) images displayed a finger-like and porous structure for all NF mem- branes and showed that agglomeration of TiO2 coated MWCNTs is very low. Contact angle measurements indicated that coating of TiO2 nanoparticles on the surface of oxidized MWCNTs improved the hydrophi- licity of the obtained membranes. The pure water flux of the blend membranes increased with the content of TiO2 coated MWCNTs. Fouling resistances of membranes evaluated by whey solution filtration revealed that 0.1 wt.% TiO2 coated MWCNTs membrane had the best antibiofouling properties due to its lowest surface roughness and synergistic photocatalytic activity induced by incorporated nanoparticles.