Cyclodextrin-Dendrimer Functionalized Polysulfone Membrane for the Removal of Humic Acid in Water

被引：22
作者：
Malinga, Soraya P. [1 ]
Arotiba, Omotayo A. [1 ]
Krause, Rui W. M. [1 ]
Mapolie, Selwyn F. [2 ]
Diallo, Mamadou S. [1 ,3 ,4 ]
Mamba, Bhekie B. [1 ]
机构：
[1] Univ Johannesburg, Dept Appl Chem, ZA-2028 Doornfontein, South Africa
[2] Univ Stellenbosch, Dept Chem & Polymer Sci, ZA-7602 Matieland, South Africa
[3] Korea Adv Inst Sci & Technol, Grad Sch Energy Environm Water & Sustainabil EEWS, Taejon 305701, South Korea
[4] CALTECH, Div Engn & Appl Sci Environm Sci & Engn, Pasadena, CA 91125 USA
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2013年 / 130卷 / 06期
关键词：
dendrimers; hyperbranched polymers and macrocycles; membranes; nanostructured polymers; BETA-CYCLODEXTRIN; NANOFILTRATION MEMBRANE; ORGANIC-MATTER; POLYMERIZATION; FABRICATION; TRANSPORT;
D O I：
10.1002/app.39728
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Commercial polysulfone (PSf) membranes were crosslinked with a -cyclodextrin-poly (propyleneimine) (-CD-PPI) conjugate which had -CD pendant arms using trimesoyl chloride (TMC) by interfacial polymerization. The morphology and physicochemical properties of the nanofiltration membranes were characterized using Fourier transform infrared/attenuated total reflectance (FT-IR/ATR) spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and cross-flow filtration system. Water-contact angle, water-intake capacity, and rejection capacities of the membranes were evaluated. The -CD-G4 (generation 4)-PPI-PSf and -CD-G3 (generation 3)-PPI-PSf membranes both exhibited high humic acid rejection of 72% as compared to the commercial PSf which exhibited 57%. The modified membranes were also more hydrophilic (36 degrees to 41 degrees) than PSf (76 degrees). These results suggest that -CD-PPI nanostructures are promising materials for the synthesis of membranes for the removal of humic acid from water. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 4428-4439, 2013
引用
收藏
页码：4428 / 4439
页数：12
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