Magnetically ultraresponsive nanoscavengers for next-generation water purification systems.
Magnetically ultraresponsive nanoscavengers for next-generation water purification systems.
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DOI：
10.1038/ncomms2892
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发表时间：
2013
影响因子：
16.6
通讯作者：
中科院分区：
文献类型：
--
作者：
可持续、稳健和节能的净水技术的发展仍然具有挑战性。尽管纳米颗粒的使用前景看好，但需要一些方法来有效地恢复治疗后的纳米颗粒。在这里，我们通过制造磁性超响应型纳米清除剂来解决这个问题，纳米清除剂是包含合成反铁磁性核心层和功能盖层的纳米颗粒。当纳米清道夫分散在水中时，它们会有效地与污染物相互作用，将它们从水中去除。然后，由于它们的磁超响应性核心层，它们很快就会被永久磁铁收集(<；5分钟)。具体地说，我们演示了银帽纳米清洁剂的制造和部署，用于消毒，然后应用外部磁场进行分离。我们还开发和验证了一个基于碰撞的病原体灭活模型，并提出了一个循环净水方案，在该方案中，纳米清洁剂被回收和循环用于污染物去除。
The development of sustainable, robust and energy efficient water purification technology is still challenging. Although use of nanoparticles is promising, methods are needed for their efficient recovery post treatment. Here we address this issue by fabrication of magnetically ultraresponsive ‘nanoscavengers’, nanoparticles containing synthetic antiferromagnetic core layers and functional capping layers. When dispersed in water, the nanoscavengers efficiently interact with contaminants to remove them from the water. They are then quickly collected (<5 min) with a permanent magnet, owing to their magnetically ultraresponsive core layers. Specifically, we demonstrate fabrication and deployment of Ag-capped nanoscavengers for disinfection followed by application of an external magnetic field for separation. We also develop and validate a collision-based model for pathogen inactivation, and propose a cyclical water purification scheme in which nanoscavengers are recovered and recycled for contaminant removal.
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影响因子：
38.3
作者：
Peng, Xinsheng;Jin, Jian;Ichinose, Izumi
通讯作者：
Ichinose, Izumi
影响因子：
10.8
作者：
Xie, Xing;Hu, Liangbing;Cui, Yi
通讯作者：
Cui, Yi
影响因子：
3.5
作者：
Morones, JR;Elechiguerra, JL;Yacaman, MJ
通讯作者：
Yacaman, MJ
影响因子：
--
作者：
Mansouri, Jaleh;Harrisson, Simon;Chen, Vicki
通讯作者：
Chen, Vicki
影响因子：
29.4
作者：
Hu, Wei;Wilson, Robert J.;Wang, Shan X.
通讯作者：
Wang, Shan X.