Selective fluorescence sensor based on ion-imprinted polymer-modified quantum dots for trace detection of Cr(VI) in aqueous solution

Zhang, Meng Yuan; Huang, Ren Feng; Guo, Xiao; Li, Guo; Wang, Ying; Fan, Yin

doi:10.1007/s00216-019-02100-w

Cited by 27 publications

(10 citation statements)

References 54 publications

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“…The new fluorescent technique presents different advantages such as high sensitivity, fast response time, visualization and high selectivity 9 . High luminescent advanced materials such as porous organic polymers, nanoparticles and carbon dots have been explored to sense Cr(VI) 10 – 12 .…”

Section: Introductionmentioning

confidence: 99%

“…High luminescent advanced materials such as porous organic polymers, nanoparticles and carbon dots have been explored to sense Cr(VI) 10 – 12 . Although good performance has been obtained, these advanced materials suffered from low sensitivity and low stability 9 . So, the potential materials with excellent stability for sensitive detection and highly selective of Cr(VI) ions are still challenging and desperately required in the perspective of health issues and environmental protection.…”

Section: Introductionmentioning

confidence: 99%

“…Lately, carbonaceous hydride materials have attracted immense attention because of their particular aspects such as monitoring in real-time, high sensitivity and quick response. Thus, the luminescent hydride NPs have been synthesized as sensors for the detection of Cr(VI) ions 9 . Recently, we have reported the synthesis and characterization of a novel highly luminescent PANI/Ag (AMPSA)/ GO QDs NC 13 .…”

Section: Introductionmentioning

confidence: 99%

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Polyaniline/Ag nanoparticles/graphene oxide nanocomposite fluorescent sensor for recognition of chromium (VI) ions

Ebrahim

Shokry

Khalil

et al. 2020

Sci Rep

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Selective determination of toxic hexavalent chromium (Cr(VI)) is a stringent important due to its huge negative impact on the health and environment. Recently, the high sensitivity, rapidness, and cost-effectiveness of the fluorescent sensors for Cr(VI) have been developed. A fluorescent nanocomposite (NC) has been synthesized based on doped polyaniline (PANI), 2-acrylamido-2-methylpropanesulfonic acid (AMPSA) capped Ag nanoparticles (NPs) and graphene oxide (GO) quantum dots (QDs) via in situ reaction for highly selective sensing of Cr(VI) ions based on the luminescent quenching in the range from 0.01 to 7.5 mg/L. This NC showed an emission peak at 348 nm with a linear range from 0.01 to 0.05 mg/L and the low limit of detection (LOD) was 0.0065 mg/L (~ 6 µg/L). PANI/Ag (AMPSA) GO QDs NC displayed high selectivity for Cr(VI) over other common metal ions. Notably, the PANI/Ag (AMPSA) GO QDs NC can be used for distinguishing Cr(VI) and Cr(III) in solutions. The sensitive determination of Cr(VI) in real surface water samples was also confirmed and demonstrated recoveries in the range 95.3–99.2%. This NC will emerge as a new class of fluorescence materials that could be suitable for practical applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polyaniline/Ag nanoparticles/graphene oxide nanocomposite fluorescent sensor for recognition of chromium (VI) ions

Ebrahim

Shokry

Khalil

et al. 2020

Sci Rep

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“…In addition to the organic molecules, important metal ions are also included in the EPA Priority Pollutant List. In order to monitor the quality of water samples, different sensors were modified with ion imprinted polymers (IIPs) for sensitive and selective detection of metal ions including arsenic [88,89], mercury [90], cadmium [91,92], chromium [93,94], copper [95,96], lead [97,98], silver [99], thallium [100] and zinc [101]. However, IIPs and metal ions are not in the scope of this review and are not discussed here.…”

Section: Introductionmentioning

confidence: 99%

Molecularly Imprinted Polymer-Based Sensors for Priority Pollutants

Zarejousheghani

Rahimi

Borsdorf

et al. 2021

Sensors

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Globally, there is growing concern about the health risks of water and air pollution. The U.S. Environmental Protection Agency (EPA) has developed a list of priority pollutants containing 129 different chemical compounds. All of these chemicals are of significant interest due to their serious health and safety issues. Permanent exposure to some concentrations of these chemicals can cause severe and irrecoverable health effects, which can be easily prevented by their early identification. Molecularly imprinted polymers (MIPs) offer great potential for selective adsorption of chemicals from water and air samples. These selective artificial bio(mimetic) receptors are promising candidates for modification of sensors, especially disposable sensors, due to their low-cost, long-term stability, ease of engineering, simplicity of production and their applicability for a wide range of targets. Herein, innovative strategies used to develop MIP-based sensors for EPA priority pollutants will be reviewed.

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“…(Reproduced under permission from Elsevier, doi:10.1016/j.jhazmat.2016.03.046).In another study, a fluorescence sensor was developed incorporating ion-imprinted polymer (IIP) as recognition element and Mn-doped ZnS quantum dots (QDs) as fluorophores to determine Cr(VI) within a linear range of 20 μg L −1 to 1 mg L −1 ; the detection limit was 5.48 μg L −1 . The prepared QDs-IIP sensor was highly specific for Cr(VI) with respect to Cr(III), Cl − , SO4 2− , PO4 3− , and MoO4 2−[54].…”

mentioning

confidence: 99%

Application of Molecularly Imprinted Polymers in the Analysis of Waters and Wastewaters

et al. 2021

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The increase of the global population and shortage of renewable water resources urges the development of possible remedies to improve the quality and reusability of waste and contaminated water supplies. Different water pollutants, such as heavy metals, dyes, pesticides, endocrine disrupting compounds (EDCs), and pharmaceuticals, are produced through continuous technical and industrial developments that are emerging with the increasing population. Molecularly imprinted polymers (MIPs) represent a class of synthetic receptors that can be produced from different types of polymerization reactions between a target template and functional monomer(s), having functional groups specifically interacting with the template; such interactions can be tailored according to the purpose of designing the polymer and based on the nature of the target compounds. The removal of the template using suitable knocking out agents renders a recognition cavity that can specifically rebind to the target template which is the main mechanism of the applicability of MIPs in electrochemical sensors and as solid phase extraction sorbents. MIPs have unique properties in terms of stability, selectivity, and resistance to acids and bases besides being of low cost and simple to prepare; thus, they are excellent materials to be used for water analysis. The current review represents the different applications of MIPs in the past five years for the detection of different classes of water and wastewater contaminants and possible approaches for future applications.

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Selective fluorescence sensor based on ion-imprinted polymer-modified quantum dots for trace detection of Cr(VI) in aqueous solution

Cited by 27 publications

References 54 publications

Polyaniline/Ag nanoparticles/graphene oxide nanocomposite fluorescent sensor for recognition of chromium (VI) ions

Polyaniline/Ag nanoparticles/graphene oxide nanocomposite fluorescent sensor for recognition of chromium (VI) ions

Molecularly Imprinted Polymer-Based Sensors for Priority Pollutants

Application of Molecularly Imprinted Polymers in the Analysis of Waters and Wastewaters

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