A novel highly osmotic K/Fe3O4/CNF magnetic draw solution for salty water desalination
A novel highly osmotic K/Fe3O4/CNF magnetic draw solution for salty water desalination
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DOI：
10.1016/j.desal.2022.115903
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发表时间：
2022-09-15
期刊：
影响因子：
9.9
通讯作者：
Hassanpour, Ali
中科院分区：
文献类型：
--
作者：
Aende, Aondohemba;Gardy, Jabbar;Hassanpour, Ali
正向渗透（FO）作为替代其他常规脱盐技术的脱盐技术越来越多地被研究，主要是由于其低能量潜力。然而，在FO脱盐过程中汲取溶液（DS）再生阶段中的增选能量限制和缺乏有效的DS阻碍了FO在工业规模上用于饮用水应用的实施。在这项工作中，我们探索了Donnan原理，从可持续发展的角度设计了一种具有磁性和太阳能热分离功能的DS材料，同时利用了精心选择的材料特性。一种新型的钾功能化的氧化铁掺杂的碳纳米纤维（K/Fe 3 O 4/CNF）磁性纳米粒子（MNP）的成功合成的FO脱盐应用，利用一种生态友好的策略，提高DS的亲水性没有聚合物。新型DS获得了显著的渗透压（86.1巴），而其FO性能显示出分别为0.10 gMH和0.004 g/L的小的反向盐通量（RSF）和比反向盐通量（SRSF）值。这些价值观至少与
Forward osmosis (FO) is increasingly being studied as an alternative desalination technique to the other conventional desalination technologies, owing primarily to its low energy potential. However, the co-opted energy limitations in the draw solution (DS) regeneration stage in FO desalination processes and the lack of effective DS have hampered FO's implementation for potable water application on an industrial scale. In this work, we explored the Donnan principle to engineer a DS material having the duality of magnetic and solar-thermal separability functionalities from a sustainability viewpoint whilst exploiting a careful selection of material properties. A novel potassium functionalised iron oxide doped carbon nanofibres (K/Fe3O4/CNF) magnetic nanoparticles (MNPs) was successfully synthesised for FO desalination applications, utilising an eco-friendly strategy that improves hydrophilicity of DS without polymers. The novel DS obtained a significant osmotic pressure (86.1 bar), whilst it FO performance showed a small reverse salt flux (RSF) and specific reverse salt flux (SRSF) values of 0.10 gMH and 0.004 g/L, respectively. These values compare to at least