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A novel luminescent hybrid material based on zinc complexes and graphene oxides for detection of Fe3+ in aqueous media

Abstract

A graphene oxide sheets modified zinc complexes named Zn-PMA/GOSs has been synthesized based on the non-covalent interactions of Zn-PMA and graphene oxide sheets (GOSs) via an in-situ reaction. And then the as-synthesized products are characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and fluorescence spectroscopy. The Zn-PMA/GOSs not only shows strong luminescence intensity and better thermal stability than pure zinc complexes but also have good dispersibility in aqueous solution, which was further used as a fluorescence probe for detecting Fe3+. It shows a relative selectivity and high sensitivity to Fe3+ (Stern-Volmer constant Ksv = 4×106 L mol-1), this suggests that Zn-PMA/GOSs could be a promising luminescent probe for selectively sensing Fe3+ ions. Moreover, the possible mechanism of ions selective detection also are discussed.

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Publication details

The article was received on 02 Jul 2018, accepted on 10 Sep 2018 and first published on 11 Sep 2018


Article type: Paper
DOI: 10.1039/C8DT02688B
Citation: Dalton Trans., 2018, Accepted Manuscript
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    A novel luminescent hybrid material based on zinc complexes and graphene oxides for detection of Fe3+ in aqueous media

    X. Zhang, S. P. Zhang and W. Zhang, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT02688B

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