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

Lihua Zhi; Jian Liu; Yuan Wang; Wei Zhang; Baodui Wang; Zhuguo Xu; Zhengyin Yang; Xing Huo; Guangming Li

doi:10.1039/C2NR33200K

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Multifunctional Fe₃O₄nanoparticles for highly sensitive detection and removal of Al(iii) in aqueous solution†

Lihua Zhi,^ab Jian Liu,^a Yuan Wang,^b Wei Zhang,^c Baodui Wang,*^a Zhuguo Xu,^a Zhengyin Yang,^a Xing Huo^a and Guangming Li^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry Lanzhou University Gansu, Lanzhou University, Lanzhou 730000, P.R. China
E-mail: wangbd@lzu.edu.cn

^b Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, P. R. China

^c The First Clinical Medical School, Lanzhou University Gansu, Lanzhou University, Lanzhou 730000, P.R. China

Abstract

Fe₃O₄ nanoparticles (NPs) decorated with rhodamine 6G Schiff base, which exhibit high selectivity and sensitivity toward Al³⁺ 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 1c renders the rhodamine 6G Schiff base unit more water soluble, and the detection limit reaches 0.3 ppb in water. Moreover, 1c can detect Al³⁺ in a wide pH span (5.0–11.0) and enrich/remove excess Al³⁺ in water via an external magnetic field, which indicates that it has more potential and further practical applications for biology and toxicology. Furthermore, 1c provides good fluorescent imaging of Al³⁺ in living cells.

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Article information

DOI: https://doi.org/10.1039/C2NR33200K
Article type: Paper
Submitted: 16 Oct 2012
Accepted: 10 Dec 2012
First published: 11 Dec 2012

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Nanoscale, 2013,5, 1552-1556

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

L. Zhi, J. Liu, Y. Wang, W. Zhang, B. Wang, Z. Xu, Z. Yang, X. Huo and G. Li, Nanoscale, 2013, 5, 1552 DOI: 10.1039/C2NR33200K

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