A small molecular fluorescent sensor functionalized silica microsphere for detection and removal of mercury, cadmium, and lead ions in aqueous solutions

Ding, Yu; Zhu, Weiping; Xu, Yufang; Qian, Xuhong

doi:10.1016/j.snb.2015.05.113

Cited by 68 publications

(23 citation statements)

References 43 publications

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“…B) Plausible detection mechanism of bifunctional fluorescence sensor sSiO 2 ‐NAP‐5 for the detection and removal of Cd 2+ , Hg 2+ , and Pb 2+ ions, and the amount of metal ions adsorption in the presence of various pH values. Reproduced with permission . Copyright 2015, Elsevier.…”

Section: Sio2‐based Hybrid Materialsmentioning

confidence: 93%

“…The detection limit toward Cu 2+ was 1.5 × 10 −7 m under optimized conditions. Spherical silica based hybrid sensor sSiO 2 ‐NAP‐5 was reported by Ding et al (Figure B), which was applied for detection and removal of toxic metal ions (Cd 2+ , Hg 2+ , and Pb 2+ ) in aqueous solution, and the composites could be easily regenerated and reused for at least five cycles with acid treatment . sSiO 2 ‐NAP‐5 showed fluorescence enhancement properties to toxic metal ions due to the PET between metal ions and sSiO 2 ‐NAP‐5, and the calculated detection limit was 3.6 × 10 −8 m for Cd 2+ , 4.8 × 10 −8 m for Hg 2+ , and 3.9 × 10 −8 m for Pb 2+ , respectively.…”

Section: Sio2‐based Hybrid Materialsmentioning

confidence: 99%

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Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Chatterjee

Liang

et al. 2019

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Hybrid fluorescent materials constructed from organic chelating fluorescent probes and inorganic solid supports by covalent interactions are a special type of hybrid sensing platform that has gained much interest in the context of metal ion sensing applications owing to their excellent advantages, recyclability, and solubility/dispersibility in particular, as compared with single organic fluorescent molecules. In recent decades, SiO2 materials and core–shell Fe3O4@SiO2 nanoparticles have become important inorganic solid materials and have been used as inorganic solid supports to hybridize with organic fluorescent receptors, resulting in multifunctional fluorescent hybrid systems for potential applications in sensing and related research fields. Therefore, recent progress in various fluorescent‐group‐functionalized SiO2 materials is reviewed, with a focus on mesoporous silica nanoparticles and core–shell Fe3O4@SiO2 nanoparticles, as interesting fluorescent organic–inorganic hybrid materials for sensing applications toward essential and toxic metal ions. Selective examples of other types of silica/silicon materials, such as periodic mesoporous organosilicas, solid SiO2 nanoparticles, fibrous silica spheres, silica nanowires, silica nanotubes, and silica hollow microspheres, are also mentioned. Finally, relevant perspectives of metal‐ion‐sensing‐oriented silica‐fluorescent probe hybrid materials are provided.

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Section: Sio2‐based Hybrid Materialsmentioning

confidence: 93%

Section: Sio2‐based Hybrid Materialsmentioning

confidence: 99%

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Chatterjee

Liang

et al. 2019

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“…These types of materials have been used in sensor applications and for remediation purposes [119,129,174,175]. A reusable fluorescent sensor capable of detecting Cd 2+ , Hg 2+ , and Pb 2+ ions in aqueous solutions was synthesized by Zhu et al by physidorption, of a 2,2-dipicoylamine modified naphthalimide fluorophore, 22, onto the surface of a silica microsphere [176]. It is inherently hydrophilic and capable of metal detection and adsorption (Scheme 8), as indicated by increases in its fluorescence intensity.…”

Section: Cadmium Probesmentioning

confidence: 99%

Low Molecular Weight Fluorescent Probes (LMFPs) to Detect the Group 12 Metal Triad

2019

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Fluorescence sensing, of d-block elements such as Cu2+, Fe3+, Fe2+, Cd2+, Hg2+, and Zn2+ has significantly increased since the beginning of the 21st century. These particular metal ions play essential roles in biological, industrial, and environmental applications, therefore, there has been a drive to measure, detect, and remediate these metal ions. We have chosen to highlight the low molecular weight fluorescent probes (LMFPs) that undergo an optical response upon coordination with the group 12 triad (Zn2+, Cd2+, and Hg2+), as these metals have similar chemical characteristics but behave differently in the environment.

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“…Furthermore, preparation of inorganic‐organic hybrid materials for the detection of cations in real‐time is of considerable interest. Thus, there are few reports based on adsorption of these probes on silica microspheres for the detection of cations ,. However, improvement in the sensitivity of these materials could be addressed.…”

Section: Introductionmentioning

confidence: 99%

Real‐Time Probe for the Efficient Sensing of Inorganic Fluoride and Copper Ions in Aqueous Media

et al. 2018

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A highly sensitive and efficient rhodamine 6G based probe (P3) was synthesized for the real‐time sensing of F− and Cu2+ ions. The probe P3 was able to show significant color change from brown to pink in the presence of F− and yellow to orange in presence of Cu2+ ions. The UV‐vis studies confirm that the probe P3 was able to detect F− and Cu2+ ions over other ions. Further, UV‐vis titration studies were carried out to understand the detection mechanism and stoichiometry between P3: F− and P3: Cu2+ ions. 1H‐NMR titration was performed to confirm the F− ion binding to probe P3, where, deprotonation of hydrazone proton (‐C=N‐NH‐) was observed. In addition, the limit of detection for P3:F− and P3:Cu2+ ions were found to be 4.02 μM and 1.64 μM respectively which is useful for practical applications. Lastly, probe P3 was used to detect and quantify the F− ions present in a commercially available mouthwash product. Furthermore, P3 was adsorbed on the surface of silica microsphere to detect Cu2+ ions. Interestingly, the material could visually detect 1 ppm of Cu2+ ions which is lower than the permissible limit.

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A small molecular fluorescent sensor functionalized silica microsphere for detection and removal of mercury, cadmium, and lead ions in aqueous solutions

Cited by 68 publications

References 43 publications

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Low Molecular Weight Fluorescent Probes (LMFPs) to Detect the Group 12 Metal Triad

Real‐Time Probe for the Efficient Sensing of Inorganic Fluoride and Copper Ions in Aqueous Media

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A small molecular fluorescent sensor functionalized silica microsphere for detection and removal of mercury, cadmium, and lead ions in aqueous solutions

Cited by 68 publications

References 43 publications

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO2 Materials and Core–Shell Fe3O4@SiO2 Nanoparticles for Metal Ion Sensing

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO2 Materials and Core–Shell Fe3O4@SiO2 Nanoparticles for Metal Ion Sensing

Low Molecular Weight Fluorescent Probes (LMFPs) to Detect the Group 12 Metal Triad

Real‐Time Probe for the Efficient Sensing of Inorganic Fluoride and Copper Ions in Aqueous Media

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Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing