A luminescent-magnetic nanocomposite for Hg(II) recognition and extraction: Preparation, characterization, sensing and removal performance

Gao, Yuqian; Song, Jing; Zhao, Xiaohang; Zhang, Shimin; Xu, Shuo; Wu, Kun; Mou, Wanzhi

doi:10.1016/j.snb.2015.03.074

Cited by 5 publications

(2 citation statements)

References 20 publications

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“…Fluorescent probes are widely used to detect target analytes because they are highly sensitive and easy to use and can be used for real time and online measurements [7][8][9]. A few well-designed fluorescent probes for determining gold ions in organic solvents or in mixed aqueous and organic media have been developed [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Sensitive detection of Au(III) using regenerative rhodamine B–functionalized chitosan nanoparticles

Liu

et al. 2016

Sensors and Actuators B: Chemical

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Section: Introductionmentioning

confidence: 99%

Sensitive detection of Au(III) using regenerative rhodamine B–functionalized chitosan nanoparticles

Liu

et al. 2016

Sensors and Actuators B: Chemical

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“…There have been some reports of multifunctional hybrid nanomaterials based on magnetic mesoporous silica nanocomposite for fast mercury ions detection and efficient removal, − and a single intensity-based fluorescence probe was selected by most of them as sensing signals. However, only one emission feature sometimes may be problematic for precise fluorometric analyses and quantification, which could be also affected by excitation source fluctuation, light scattering of sample matrix, microenvironment around the probe, and many other analyte-independent interferences.…”

Section: Introductionmentioning

confidence: 99%

Recyclable Multifunctional Magnetic Mesoporous Silica Nanocomposite for Ratiometric Detection, Rapid Adsorption, and Efficient Removal of Hg(II)

Wang

Tang

Shen

et al. 2018

ACS Sustainable Chem. Eng.

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In this paper, multifunctional inorganic−organic nanocomposites were fabricated through encapsulating CdTe quantum dots and Rhodamine 6G-deprived receptor into the nonporous and mesoporous shell of the magnetic mesoporous silica nanocomposites. The resultant nanomaterials display an obvious core−shell structure, superparamagnetic property, ordered mesoporous characteristics, and highly selective, sensitive, and regenerative ratiometric fluorescent sensing performance for determination of Hg 2+ . A good linearity is obtained between I Rh6G /I QDs and Hg 2+ concentration (0.7 to 90 × 10 −8 mol•L −1 ), exhibiting a detection limit as low as 2.5 × 10 −9 mol•L −1 . Moreover, the multifunctional nanocomposites possess acceptable Hg 2+ adsorption capacity and can be simply separated by magnet. Real water sample assays further verified its good mercury ion analysis and removal ability. Our results reveal that high sensitivity, selectivity, rapid adsorption, efficient removal ability, and good reusability as well as better accuracy can be simultaneously achieved by combining magnetic mesoporous silica nanocomposite with ratiometric fluorescence sensing properties than the traditional intensity-based fluorescence methods. This recyclable multifunctional hybrid nanostructure may have great potential for Hg 2+ detection and removal in environmental, biological, and toxicological areas.

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Silica-based optical chemosensors for detection and removal of metal ions

Huang

Yan

et al. 2016

J IRAN CHEM SOC

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A luminescent-magnetic nanocomposite for Hg(II) recognition and extraction: Preparation, characterization, sensing and removal performance

Cited by 5 publications

References 20 publications

Sensitive detection of Au(III) using regenerative rhodamine B–functionalized chitosan nanoparticles

Sensitive detection of Au(III) using regenerative rhodamine B–functionalized chitosan nanoparticles

Recyclable Multifunctional Magnetic Mesoporous Silica Nanocomposite for Ratiometric Detection, Rapid Adsorption, and Efficient Removal of Hg(II)

Silica-based optical chemosensors for detection and removal of metal ions

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