Sengur-Tasdemir Reyhan, Mokkapati Venkata R S S, Koseoglu-Imer Derya Y, Koyuncu Ismail
a Graduate School of Science, Engineering and Technology, Department of Nanoscience and Nanoenginering , Istanbul Technical University , Istanbul , Turkey.
b National Research Center on Membrane Technologies , Istanbul Technical University , Istanbul , Turkey.
Environ Technol. 2018 May;39(10):1226-1237. doi: 10.1080/09593330.2017.1325409. Epub 2017 May 17.
Multi-walled carbon nanotubes (MWCNTs) can be used for the fabrication of mixed matrix polymeric membranes that can enhance filtration perfomances of the membranes by modifying membrane surface properties. In this study, detailed characterization and filtration performances of MWCNTs functionalized with COOH group, blended into polymeric flat-sheet membranes were investigated using different polymer types. Morphological characterization was carried out using atomic force microscopy, scanning electron microscopy and contact angle measurements. For filtration performance tests, protein, dextran, E. coli suspension, Xanthan Gum and real activated sludge solutions were used. Experimental data and analyses revealed that Polyethersulfone (PES) + MWCNT-COOH mixed matrix membranes have superior performance abilities compared to other tested membranes.
多壁碳纳米管（MWCNTs）可用于制造混合基质聚合物膜，通过改变膜的表面性质来提高膜的过滤性能。在本研究中，使用不同类型的聚合物，对羧基官能化的多壁碳纳米管（MWCNTs）混入聚合物平板膜中的详细表征和过滤性能进行了研究。使用原子力显微镜、扫描电子显微镜和接触角测量进行形态表征。对于过滤性能测试，使用了蛋白质、葡聚糖、大肠杆菌悬浮液、黄原胶和实际活性污泥溶液。实验数据和分析表明，聚醚砜（PES）+MWCNT-COOH混合基质膜比其他测试膜具有更优异的性能。
