聚乙烯醇和藻酸盐膜与铁基磁性有机/无机填料在乙醇渗透汽化脱水过程中的整理效率
Collation Efficiency of Poly(Vinyl Alcohol) and Alginate Membranes with Iron-Based Magnetic Organic/Inorganic Fillers in Pervaporative Dehydration of Ethanol.
作者信息
Dudek Gabriela, Turczyn Roman, Djurado David
机构信息
Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland.
Systèmes Moléculaires et nanoMatériaux pour l'Energie et la Santé (SyMMES), IRIG, CNRS, CEA Grenoble, Université Grenoble Alpes, 17 rue des Martyrs, 38054 Grenoble, France.
出版信息
Materials (Basel). 2020 Sep 18;13(18):4152. doi: 10.3390/ma13184152.
Hybrid poly(vinyl alcohol) and alginate membranes were investigated in the process of ethanol dehydration by pervaporation. As a filler, three types of particles containing iron element, i.e., hematite, magnetite, and iron(III) acetyloacetonate were used. The parameters describing transport properties and effectiveness of investigated membranes were evaluated. Additionally, the physico-chemical properties of the resulting membranes were studied. The influence of polymer matrix, choice of iron particles and their content in terms of effectiveness of membranes in the process of ethanol dehydration were considered. The results showed that hybrid alginate membranes were characterized by a better separation factor, while poly(vinyl alcohol) membranes by a better flux. The best parameters were obtained for membranes filled with 7 wt% of iron(III) acetyloacetonate. The separation factor and pervaporative separation index were equal to 19.69 and 15,998 for alginate membrane and 11.75 and 14,878 for poly(vinyl alcohol) membrane, respectively.
研究了杂化聚乙烯醇和海藻酸盐膜在渗透汽化乙醇脱水过程中的性能。作为填料，使用了三种含铁元素的颗粒，即赤铁矿、磁铁矿和乙酰丙酮铁(III)。评估了描述所研究膜的传输性能和有效性的参数。此外，还研究了所得膜的物理化学性质。考虑了聚合物基体、铁颗粒的选择及其含量对膜在乙醇脱水过程中有效性的影响。结果表明，杂化海藻酸盐膜具有较好的分离因子，而聚乙烯醇膜具有较好的通量。填充7 wt%乙酰丙酮铁(III)的膜获得了最佳参数。海藻酸盐膜的分离因子和渗透汽化分离指数分别为19.69和15998，聚乙烯醇膜的分离因子和渗透汽化分离指数分别为11.75和14878。
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