Mechanism, synthesis and modification of nano zerovalent iron in water treatment

Owing to its strong reducing ability, high reaction activity, excellent adsorption properties, good mobility and relatively low cost, nano zerovalent iron (nZVI) is an extremely promising nanomaterial for use in water treatment. In this paper, the working mechanisms of nZVI in the degradation of var...

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Bibliographic Details
Published in:Nanoscale 2016-05, Vol.8 (19), p.9962-9975
Main Authors: Lu, Hai-Jiao, Wang, Jing-Kang, Ferguson, Steven, Wang, Ting, Bao, Ying, Hao, Hong-xun
Format: Article
Language:English
Subjects:
Contaminants
Degradation
Iron
Low cost
Nanostructure
Stability
Synthesis
Water treatment
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Summary:Owing to its strong reducing ability, high reaction activity, excellent adsorption properties, good mobility and relatively low cost, nano zerovalent iron (nZVI) is an extremely promising nanomaterial for use in water treatment. In this paper, the working mechanisms of nZVI in the degradation of various contaminants in water are outlined and discussed. Synthesis methods and their respective advantages and disadvantages are discussed in detail. Furthermore, a variety of modification methods which have been developed to improve the mobility and stability of nZVI as well as to facilitate the separation of nZVI from degraded systems are also summarized and discussed. Numerous studies indicate that nZVI has considerable potential to become an efficient, versatile and practical approach for large-scale water treatment. An overview of the mechanism, synthesis and modification of nano zerovalent iron in water treatment is provided.
ISSN:2040-3364
2040-3372
DOI:10.1039/c6nr00740f