Pervaporation separation of IPA‐water mixtures through 4A zeolite‐filled sodium alginate membranes
Pervaporation separation of IPA‐water mixtures through 4A zeolite‐filled sodium alginate membranes
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DOI：
10.1002/app.33695
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发表时间：
2011-09
影响因子：
3
通讯作者：
H. Sudhakar;C. Prasad;K. Sunitha;K. Rao;M. Subha;S. Sridhar
中科院分区：
文献类型：
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作者：
H. Sudhakar;C. Prasad;K. Sunitha;K. Rao;M. Subha;S. Sridhar
实验表明，在天然聚合物中掺入沸石可以提高渗透蒸发脱水分离有机化合物的通量和选择性。渗透汽化是分离挥发性有机物(VOCs)/水混合物的一种很有前途的膜技术。本研究通过在聚合物基质中加入沸石，采用溶液浇铸法制备了亲水性海藻酸钠(SA)复合膜。用ATR-傅立叶变换红外光谱(FTIR)、X射线衍射仪(XRD)、扫描电子显微镜(SEM)、热重分析(TGA)和差示扫描量热法(DSC)对膜进行了表征，并在实验室条件下进行了渗透汽化实验。考察了沸石类型和组成等实验参数对渗透通量和选择性的影响。当在IPA-水混合物上进行测试时，发现沸石填充膜具有更高的选择性。©2011 Wiley期刊，Inc.J Appl Polym Sci，2011
Incorporation of zeolites into natural polymers has been shown experimentally to enhance both the flux and selectivity in pervaporative dehydration separation of organic compounds. Pervaporation is a promising membrane technique for separation of volatile organic compounds (VOCs)/water mixtures. In this study, hydrophilic sodium alginate (SA) mixed membranes were prepared using solution casting technique by incorporating zeolites into the polymer matrix. The prepared membranes were characterized by ATR-Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), Thermal Gravimetric Analysis (TGA), and differential scanning calorimetry (DSC) were tested in a laboratory scale pervaporation experimental set-up. The effect of experimental parameters such as the type and composition of zeolites on permeation flux and selectivity was investigated. When tested on IPA-water mixtures, the zeolite-filled membrane was found to give much higher selectivity. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011