Afzal Amina, Rafique Muhammad Shahid, Iqbal Nadeem, Qaiser Asif Ali, Anwar Abdul Waheed, Iqbal Sadia Sagar
Physics Department, University of Engineering and Technology, Lahore 54000, Pakistan.
HR Materials, Quaid-e-Azam Industrial Estate, Lahore 54000, Pakistan.
Nanomaterials (Basel). 2016 Apr 21;6(4):79. doi: 10.3390/nano6040079.
In order to enhance salt rejection level and high pressure mechanical integrity, functionalized nanokaolin decorated multiwall carbon nanotubes (FNKM, 0-5 wt % loading) were incorporated into a cellulose acetate (CA) matrix using high temperature solution mixing methodology. Scanning electron microscopy (SEM), X-ray diffraction technique (XRD), thermo-gravimetric analyzer (TGA) and Fourier transform infrared spectrometer (FTIR) were used to characterize the prepared membranes. The obtained results revealed that with increasing FNKM concentration in the host polymeric matrix, composite membrane's structural, functional, thermal, water permeation/flux and salt rejection characteristics were also modified accordingly. Percent enhancement in salt rejection was increased around threefold by adding 5 wt % FNKM in CA.
为了提高脱盐率和高压机械完整性，采用高温溶液混合方法将功能化纳米高岭土修饰的多壁碳纳米管（FNKM，负载量为0-5 wt%）掺入醋酸纤维素（CA）基质中。使用扫描电子显微镜（SEM）、X射线衍射技术（XRD）、热重分析仪（TGA）和傅里叶变换红外光谱仪（FTIR）对制备的膜进行表征。所得结果表明，随着主体聚合物基质中FNKM浓度的增加，复合膜的结构、功能、热性能、水渗透/通量和脱盐特性也相应改变。在CA中添加5 wt%的FNKM可使脱盐率提高约三倍。
