论文摘要
Pervaporation is an important membrane separation method of chemical engineering. In this work,silver-nanoparticles-poly（vinyl alcohol） nanocomposite membranes（AgNPs-PVA） are produced for the sake of improving its potentials for pervaporation of ethanol–water mixture so that the usual opposite trend between membrane selectivity and permeation can be reduced. The nanocomposite membranes are fabricated from an aqueous solution of poly（vinyl alcohol） with silver nanoparticles via the in-situ generation technique in the absence of any reducing agent. Successful generation of the nano size silver is measured by the UV–vis spectrum showing a single peak at 419 nm due to the plasmonic effect of silver nanoparticles. Our nanocomposite AgNPs-PVA membranes are characterized using scanning electron microscope（SEM）, Fourier-transform infrared（FT-IR） spectroscopy, X-ray diffraction and thermogravimetric analysis（TGA）. The pervaporation tests of our new AgNPs-PVA membranes show good results since at a higher temperature and higher ethanol concentration in the feed, the prepared membranes are highly permeable for the water having stable selectivity values and therefore our membranes show better performance compared to that of the other PVA-based nanocomposite membranes.
论文目录
文章来源
类型: 期刊论文
作者: Asmaa Selim,Andras Jozsef Toth,Daniel Fozer,Eniko Haaz,Nóra Valentínyi,Tibor Nagy,Orsolya Keri,Lászlo Péter Bakos,Imre Miklós Szilágyi,Peter Mizsey
来源: Chinese Journal of Chemical Engineering 2019年07期
年度: 2019
分类: 工程科技Ⅰ辑,工程科技Ⅱ辑
专业: 无机化工,有机化工,材料科学,工业通用技术及设备
单位: Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics,Chemical Engineering Department ,National Research Centre,Giza , Egypt,Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics,Department of Fine Chemicals and Environmental Technology, University of Miskolc
基金: the financial support from the Hungarian National Scientific Research Foundations (OTKA) project: Capture of CO2 from biogases and industrial flue gases,project no. 112699,supported by the European Union and the Hungarian State,co-financed by the European Regional Development Fund in the framework of the GINOP-2.3.4-152016-00004 project
分类号: TQ028.8;TB383.1
页码: 1595-1607
总页数: 13
文件大小: 1205K
下载量: 2