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Performance studies of GO/PF127 incorporated Polyetherimide Ultrafiltration membranes for the rejection of oil from oil wastewater
Chemical Engineering Research and Design ( IF 3.9 ) Pub Date : 2021-02-09 , DOI: 10.1016/j.cherd.2021.01.019
Manikandan GN , Helen Kalavathy M

Ultrafiltration Polyetherimide (PEI) polymeric membrane was modified by the incorporation of graphene oxide (GO) (0.2, 0.6 and 1 wt %) and PluronicF-127 (PF127) (1 wt %) using the phase inversion technique for synthetically produced oil-water separation. GO nanoparticles were prepared by the Hummers method and it was analyzed by FTIR, XRD, Raman, and TGA. ATR-FTIR is attributed to measure the functional groups in the prepared membrane. The effect of GO and PF127 loading on the prepared membranes was evaluated by SEM, AFM, viscosity, water uptake capacity, surface porosity, tortuosity, and pore radius. The contact angle measurements are performed to determine the hydrophilicity of the prepared membranes. The thermal and mechanical stability of prepared membranes is determined by TGA and mechanical test analyzer. The performances of prepared membranes were determined by permeability, rejection, and antifouling properties using crude oil as a feed solution. In the filtration performances, the membrane synthesized with composition PEI (17 wt %), PF127 (1 wt %) and GO (0.6 wt %) showed better rejection of 95% which ameliorates the flux of 266.5 L m−2 h−1 and also it bolster the flux recovery ratio of 93% with improved recyclability performance. The improved results were obtained by the modification of the PEI membrane matrix with the addition of highly hydrophilic synthesized GO nanoparticles, that produced an enhanced efficiency in the separation of oil wastewater.



中文翻译:

掺入GO / PF127的聚醚酰亚胺超滤膜对石油废水中油的去除性能研究

超滤聚醚酰亚胺(PEI)聚合物膜是通过使用相转化技术将氧化石墨烯(GO)(0.2、0.6和1 wt%)和PluronicF-127(PF127)(1 wt%)掺入而改性的分离。GO纳米颗粒通过Hummers方法制备,并通过FTIR,XRD,拉曼和TGA分析。ATR-FTIR归因于测量制备的膜中的官能团。通过SEM,AFM,粘度,吸水能力,表面孔隙率,曲折度和孔半径评估了GO和PF127负载量对制备的膜的影响。进行接触角测量以确定所制备的膜的亲水性。制备的膜的热稳定性和机械稳定性由TGA和机械测试分析仪确定。使用原油作为进料溶液,由渗透性,截留率和防污性能决定了制备的膜的性能。在过滤性能方面,由PEI(17 wt%),PF127(1 wt%)和GO(0.6 wt%)组成的膜表现出更好的95%截留率,从而改善了266.5 L m的通量-2 h -1,并且它提高了93%的焊剂回收率,并提高了可回收性。通过添加高亲水性合成的GO纳米颗粒对PEI膜基质进行改性,获得了改善的结果,从而提高了石油废水的分离效率。

更新日期:2021-02-23
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