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The effect of Nanocrystalline cellulose/Gum Arabic conjugates in crosslinked membrane for antibacterial, chlorine resistance and boron removal performance
Journal of Hazardous Materials ( IF 13.6 ) Pub Date : 2017-09-14 , DOI: 10.1016/j.jhazmat.2017.09.023
Saba Asim , Maria Wasim , Aneela Sabir , Muhammad Shafiq , Huma Andlib , Sania Khuram , Adnan Ahmad , Tahir Jamil

In this work, we developed hybrid membranes integrated with Nanocrystalline cellulose (NCC)/Gum Arabic (GuA) conjugates using crosslinked Poly (vinyl alcohol) (PVA) as a matrix phase with the addition of PEO-PPO-PEO block copolymer that insured pore formation. At first, the NCC was prepared from microcrystalline cellulose via acid hydrolysis process. The performance property of hybrid NCC/GuA was measured using boron removal. The results showed that the rejection capability enhanced as compared to the control membranes, especially at 0.1 wt% of NCC the selectivity is up to 92.4% with the flux rate of 21.3 L/m2.h. Moreover, the GuA in NCC/GuA conjugate significantly enhances the antibacterial activity by hindering the bacterial attachment to the surface as both of them carry the negative charge. Also by providing the active sites responsible for hydrogen bonding thus enhancing the hydrophilic character resulted in increased permeation flux rate. Therefore, the NCC/GuA conjugated membranes have great potentials for boron removal.

中文翻译:

交联膜中纳米晶纤维素/阿拉伯胶的共轭物对抗菌,耐氯性和除硼性能的影响

在这项工作中,我们使用交联的聚乙烯醇(PVA)作为基质相,开发了与纳米晶纤维素(NCC)/阿拉伯胶(GuA)共轭物结合的杂化膜,并添加了可确保孔隙的PEO-PPO-PEO嵌段共聚物编队。首先,NCC是由微晶纤维素经酸水解工艺制得的。使用除硼技术测量了混合NCC / GuA的性能。结果表明,与对照膜相比,截留能力增强,特别是在NCC含量为0.1 wt%时,选择性高达92.4%,通量率为21.3 L / m 2。。H。此外,NCC / GuA共轭物中的GuA通过阻碍细菌附着在表面上而显着增强了抗菌活性,因为它们都带有负电荷。同样通过提供负责氢键的活性位点,从而增强了亲水性,导致渗透通量速率增加。因此,NCC / GuA共轭膜具有去除硼的巨大潜力。
更新日期:2017-09-14
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