Multifunctional Fe₃O₄ nanoparticles for highly sensitive detection and removal of Al(III) in aqueous solution

Fe(3)O(4) nanoparticles (NPs) decorated with rhodamine 6G Schiff base, which exhibit high selectivity and sensitivity toward Al(3+) over other common metal ions in aqueous media under a physiological pH window via a 1:1 binding mode, have been synthesized and characterized. The resulting conjugate r...

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Bibliographic Details
Published in:Nanoscale 2013-02, Vol.5 (4), p.1552
Main Authors: Zhi, Lihua, Liu, Jian, Wang, Yuan, Zhang, Wei, Wang, Baodui, Xu, Zhuguo, Yang, Zhengyin, Huo, Xing, Li, Guangming
Format: Article
Language:English
Subjects:
Aluminum - analysis
Aluminum - chemistry
Aluminum - radiation effects
Magnetic Fields
Magnetite Nanoparticles - chemistry
Magnetite Nanoparticles - radiation effects
Materials Testing
Water Pollutants - analysis
Water Pollutants - chemistry
Water Pollutants - radiation effects
Water Purification - methods
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Summary:Fe(3)O(4) nanoparticles (NPs) decorated with rhodamine 6G Schiff base, which exhibit high selectivity and sensitivity toward Al(3+) over other common metal ions in aqueous media under a physiological pH window via a 1:1 binding mode, have been synthesized and characterized. The resulting conjugate renders the rhodamine 6G Schiff base unit more water soluble, and the detection limit reaches 0.3 ppb in water. Moreover, can detect Al(3+) in a wide pH span (5.0-11.0) and enrich/remove excess Al(3+) in water via an external magnetic field, which indicates that it has more potential and further practical applications for biology and toxicology. Furthermore, provides good fluorescent imaging of Al(3+) in living cells.
ISSN:2040-3364
2040-3372
DOI:10.1039/c2nr33200k