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首页> 外文期刊>Desalination: The International Journal on the Science and Technology of Desalting and Water Purification >Preparation and characterization of novel PSf/PVP/PANI-nanofiber nanocomposite hollow fiber ultrafiltration membranes and their possible applications for hazardous dye rejection
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Preparation and characterization of novel PSf/PVP/PANI-nanofiber nanocomposite hollow fiber ultrafiltration membranes and their possible applications for hazardous dye rejection

机译：新型PSf / PVP / PANI-纳米纤维纳米复合中空纤维超滤膜的制备，表征及其在有害染料排斥中的应用

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摘要

In the present study, PANI (polyaniline)-nanofibers were synthesized by interfacial polymerization technique, dispersed in n-Methyl-2-Pyrrolidone (NMP) solvent and blended with PVP (Polyvinylpyrrolidone)/PSf (Polysulfone) for preparing the novel hollow fiber membrane by dry wet spinning technique. The newly prepared nanocomposite ultrafiltration hollow fiber membrane is characterized by Scanning Electron Microscope (SEM), Contact Angle, Zeta Potential and Differential Scanning Calorimeter (DSC). Filtration studies are conducted to measure the membrane pure water flux (PWF), rejection of hazardous dye (Reactive Red 120) and fouling resistance. The maximum rejections are obtained for M 0.5 membrane with 99.25% rejection of RR120 hazardous dye at 2 bar pressure. The pure water flux, percentage rejection, antifouling property and thermal resistance increased with an increase in PANI-nanofiber concentration. The contact angle of the membrane decreased with increasing PANI-nanofiber concentration, which indicated increased hydrophilicity of the new membranes. (C) 2015 Elsevier B.V. All rights reserved.
机译：本研究采用界面聚合技术合成了聚苯胺（PANI）-纳米纤维，将其分散在正甲基-2-吡咯烷酮（NMP）溶剂中，并与PVP（聚乙烯吡咯烷酮）/ PSf（聚砜）共混制备了新型中空纤维膜。通过干湿纺技术。新制备的纳米复合超滤中空纤维膜的特征在于扫描电子显微镜（SEM），接触角，ζ电势和差示扫描量热仪（DSC）。进行过滤研究以测量膜纯净水通量（PWF），有害染料的排斥（活性红120）和耐污染性。对于M 0.5膜，在2 bar的压力下，RR120有害染料的排斥率为99.25％，可获得最大的排斥率。随着PANI-纳米纤维浓度的增加，纯净水通量，拒水百分率，防污性能和耐热性均增加。膜的接触角随PANI-纳米纤维浓度的增加而减小，这表明新膜的亲水性增加。 （C）2015 Elsevier B.V.保留所有权利。

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