Preparation of mixed matrix PES-based nanofiltration membrane filled with PANI-co-MWCNT composite nanoparticles

被引:21
作者
Bagheripour, Ehsan [1 ]
Moghadassi, Abdolreza [1 ]
Hosseini, Sayed Mohsen [1 ]
机构
[1] Arak Univ, Fac Engn, Dept Chem Engn, Arak 3815688349, Iran
关键词
Nanofiltration; Membrane Fabrication/Characterization; Mixed Matrix; Polyaniline-co-multi Walled Carbon Nanotubes Composite Nanoparticles; METAL ALKOXIDE METHODS; CARBON NANOTUBES; OXIDE NANOPARTICLES; EXCHANGE MEMBRANES; FABRICATION; PERFORMANCE; REMOVAL; WATER; SEPARATION; TRANSPORT;
D O I
10.1007/s11814-015-0257-x
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Mixed matrix polyethersulfone/PANI-co-MWCNTs composite nanoparticle nanofiltration membrane was prepared by casting solution technique. Polyvinylpyrrolidone was also used as membrane pore former in membrane fabrication. The effect of polyaniline-co-multi walled carbon nanotubes composite nanoparticle concentration in the casting solution on membrane structure and performance was investigated. Scanning optical microscopy and scanning electron microscopy, FTIR analysis, porosity, mean pore size, contact angle, water content, NaCl/Na2SO4 rejection, water flux, tensile strength measurements and 3D surface image were also carried out in membrane characterization. SOM images showed nanoparticle agglomeration at high additive loading ratio. SEM images showed the membrane sub-layer porosity and thickness were changed by use of nanoparticles in membrane matrix. The membrane water content, porosity and pore size were increased by increase of nanoparticle concentration, except for 1%wt. Use of PANI-co-MWCNT nanoparticles in the membrane matrix caused a decrease of membrane contact angle from 63.43 to 46.76 degrees. Salt rejection and water flux were improved initially by increase of nanoparticle concentration up to 0.1%wt and then decreased by more additive concentration. In addition, the membranes tensile strength was reduced by increase of PANI-co-MWCNTs composite nanoparticle concentration. 3D surface images showed a smoother surface for mixed matrix membrane filled with 0.1wt% PANI-co-MWCNTs. Modified membrane containing 0.1wt% composite nanoparticles showed better performance compared to others.
引用
收藏
页码:1462 / 1471
页数:10
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