Laminar reduced graphene oxide membrane modified with silver nanoparticle-polydopamine for water/ion separation and biofouling resistance enhancement 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Desalination: The International Journal on the Science and Technology of Desalting and Water Purification
年/卷/期
2018 / 426 /
页码
21-31
ISSN号
0011-9164
作者单位
GIST, Sch Earth Sci & Environm Engn, GDRC, 123 Cheorndangwagi Ro, Gwangju 61005, South Korea;GIST, Sch Earth Sci & Environm Engn, GDRC, 123 Cheorndangwagi Ro, Gwangju 61005, South Korea;GIST, Sch Earth Sci & Environm Engn, GDRC, 123 Cheorndangwagi Ro, Gwangju 61005, South Korea;GIST, Sch Earth Sci & Environm Engn, GDRC, 123 Cheorndangwagi Ro, Gwangju 61005, South Korea;GIST, Sch Earth Sci & Environm Engn, GDRC, 123 Cheorndangwagi Ro, Gwangju 61005, South Korea;
作者
Yang, Euntae;Alayande, Abayomi Babatunde;Kim, Chang-Min;Song, Jun-ho;Kim, In S.;
摘要
Laminar graphene oxide (GO) membranes with excellent water permeability have demonstrated great potential in the field of membrane-based water purification. However, low ion rejection and controversy over their biofouling propensity are hurdles GO membranes face in realizing commercial applications. This study shows that silver nanoparticle (nAg)@polydopamine (pDA) deposition on chemically reduced GO (rGO) laminates can simultaneously enhance both biofouling resistance and ion rejection. In pressurized filtration tests, the salt rejection of nAg@pDA-rGO membranes outperformed that of GO membranes despite its lowered water permeability. In osmotic filtration tests, nAg@pDA-rGO membranes achieved an increased water flux of 28.9 LMH and reduced reverse solute flux of 0.21 mol/m(2).h, compared to GO membranes. Moreover, extremely low cell attachment and viability were seen on the nAg@pDA-rGO membrane, confirming the excellent antibiofouling ability of nAg-pDA-rGO membranes.
机翻摘要
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关键词/主题词
Biofouling;Graphene oxide membrane;Silver nanoparticle;
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