Chitosan-Modified Polyvinyl Alcohol Membrane High Performance in Biodiesel/Methanol Pervaporation Separation,ChemistrySelect

当前位置： X-MOL 学术 › ChemistrySelect › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Chitosan-Modified Polyvinyl Alcohol Membrane High Performance in Biodiesel/Methanol Pervaporation Separation
ChemistrySelect ( IF 1.9 ) Pub Date : 2021-09-09 , DOI: 10.1002/slct.202102763
Liuyu Gu ₁ , Zongqi Zhang ₁ , Su Yang ₁ , Xueping Liu ₁ , Mengting Zhang ₁ , Lijing Gao ₁ , Guomin Xiao ₁

Affiliation

The chitosan doped polyvinyl alcohol film are prepared by blending heating method. The prepared membrane is characterized by Fourier Transform Infrared Spectrometer (FTIR), scanning electron microscope (SEM), atomic force microscope (AFM) and universal testing machine. The surface of the cast membranes is generally flat, and the pervaporation process would cause the membrane to have a wrinkled shape. These membranes can be used for pervaporation to separate methanol/biodiesel mixtures. This paper studies the effects of different chitosan additions, feed temperature and feed concentration on membrane performance. When the chitosan doping amount is 30 % by mass of polyvinyl alcohol at 40 °C, the maximum flux reaches 569.212 g m⁻² h⁻¹. At the same time, the separation factor increases as the methanol concentration in the liquid decreases. When the methanol mass fraction is 10 %, the separation factor can reach 116.717.

中文翻译：

壳聚糖改性聚乙烯醇膜在生物柴油/甲醇渗透蒸发分离中的高性能

采用共混加热法制备壳聚糖掺杂聚乙烯醇薄膜。制备的膜通过傅里叶变换红外光谱仪（FTIR）、扫描电子显微镜（SEM）、原子力显微镜（AFM）和万能试验机进行表征。流延膜的表面通常是平坦的，渗透蒸发过程会导致膜具有皱纹形状。这些膜可用于渗透蒸发以分离甲醇/生物柴油混合物。本文研究了不同壳聚糖添加量、进料温度和进料浓度对膜性能的影响。40℃下壳聚糖掺杂量为聚乙烯醇质量的30%时，最大通量达到569.212 g m ^-2 h ^-1. 同时，分离因子随着液体中甲醇浓度的降低而增加。当甲醇质量分数为10%时，分离系数可达116.717。

更新日期：2021-09-10

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11