A designable magnetic MOF composite and facile coordination-based post-synthetic strategy for the enhanced removal of Hg<sup>2+</sup> from water

Huang, Lijin; He, Man; Chen, Beibei; Hu, Bin

doi:10.1039/c5ta01484k

Cited by 197 publications

(102 citation statements)

References 72 publications

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“…57 Though amine terminated SiNC had been used as fluorescent probe in detecting Hg 2+ in aqueous solutions via the affinity of Hg 2+ to N, 58 previously used SiNC is dissociated, lacking the capability to deplete Hg 2+ . On contrary, the highly nanoporous structure in our SiPM is suitable in adsorbing molecules.…”

Section: Resultsmentioning

confidence: 99%

In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform

et al. 2016

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A facile, one-step method was developed for in situ forming fluorescent silicon nanocrystals (SiNC) in microspherical encapsulating matrix. The obtained SiNC encapsulated polymeric microcapsules (SiPM) possess uniform size (0.1–2.0 µm), strong fluorescence, and nanoporous structure. A unique two stage, time dependent reaction was developed, as the growth of SiNC was slower than the formation of polymeric microcapsules. The resulting SiPM with increasing reaction time exhibited two levels of stability, and in correspondence, the release of SiNC in aqueous media showed different behaviors. With reaction time < 1 h, the obtained low-density SiPM (LD-SiPM) as matrix microcapsules, would release encapsulated SiNC on demand. With >1 h reaction time, resulting high-density SiPM (HD-SiPM) became stable SiNC reservoirs. SiPM exhibits stable photoluminescence. The porous structure and fluorescence quenching effects make SiPM suitable for bioimaging, drug loading and sorption of heavy metals (Hg2+ as shown) with intrinsic indicator. SiPM was able to reduce metal ions, forming SiPM/Metal oxide and SiPM/Metal hybrids, and their application in bio-sensing and catalysis were also demonstrated.

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Section: Resultsmentioning

confidence: 99%

In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform

et al. 2016

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“…Huang and colleagues reported a new self‐template method to synthesize a designable core‐shell Fe 3 O 4 @SiO 2 @HKUST‐1 . In this method, they used a copper source, which was Cu(OH) 2 shell, and the organic ligand which came from H 3 BTC.…”

Section: Different Applications Of Magnetic Framework Compositesmentioning

confidence: 99%

“…(II) VSM magnetization curves Fe 3 O 4 @SiO 2 , Fe 3 O 4 @SiO 2 @Cu(OH) 2 , Fe 3 O 4 @SiO 2 @HKUST‐1, and Bi‐I‐functionalized Fe 3 O 4 @SiO 2 @HKUST‐1; The insets show the digital images before and after magnetic separation under an external magnetic field. Reproduced with permission from ref . Copyright (2015) Royal Society of Chemistry.…”

Section: Different Applications Of Magnetic Framework Compositesmentioning

confidence: 99%

Fe₃O₄@MOF Magnetic Nanocomposites: Synthesis and Applications

Aghayi‐Anaraki

Safarifard

2020

Eur J Inorg Chem

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In this review, we gather a great deal of information about magnetic nanocomposites, which are made from the combination of Fe 3 O 4 magnetic nanoparticles (MNPs) and metal-organic frameworks (MOFs). Due to the high saturation magnetization, biocompatibility, low toxicity, stability, and costeffectiveness, MNPs have attracted a lot of interest in recent years. Furthermore, MOFs, which are porous materials, formed by the connection between organic linkers and metal ions. The combination of MNPs and MOFs results in the formation of magnetic framework composites (MFCs). The information about the MFCs is classified according to their applications and we

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“…The material exhibited an excellent selectivity to Hg 2+ in a mixture of heavy metal ions whose pH was 3 ( Figure ) and fast separation of it. However, although it can handle a large amount of wastewater in a short time, it is too vulnerable to consider it an available alternative because its structure is stable in solution for less than half an hour . The cause may be that acid solution leads to the dissolution of Fe 3 O 4 , which further emerged some unknown phases.…”

Section: Application Of the Hkust‐1 And Its Derivativesmentioning

confidence: 99%

Strategies for Overcoming Defects of HKUST‐1 and Its Relevant Applications

Wang

Zhu

Zeng

et al. 2019

Adv Materials Inter

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As a class of metal-organic frameworks (MOFs) formed by association of metal cations Cu 2+ with organic ligands benzene tricarboxylic acid, HKUST-1 [1] and its derivatives have attracted much concern as they possess highly porosity, ultrahigh surface area, and the tunable structure which show its potential in various applications. Unlike other porous materials like graphene (GN), [2] multiple layers of carbon nanotube (MCNT), [3] In recent decades, metal-organic frameworks (MOFs) have achieved rapid development owing to the considerable concern from researchers. As one of the most intensely studied MOFs, HKUST-1 has shown remarkable performance which is considered feasible to apply in actual applications. However, the weak mechanical properties and water instability hinder its development which are mainly ascribed to lattice defects and surface barriers that impede mass transfer and molecular diffusion as well as electronic transmission. This review summarizes the recent literatures on the strategies of enhancing the above defects of virgin HKUST-1 and its various applications, mainly adsorption and separation, catalyst, sensor as well as optical and electronic applications. These improving strategies improve specific properties of HKUST-1 by decreasing the defects density, which will make this material more applicable for potential fields. Main strategies include the following: (1) modifying HKUST-1 with an "armor," (2) getting durable MOFs by direct synthesis or surface hydrophobization, (3) reconstructing the moisture-degraded HKUST-1, and (4) making use of the buffer action of sacrificial bonds. . His current research focuses on metal-organic frameworks (MOFs), porous coordination polymers (PCPs), morph-genetic MOFs, biomimetic functional composite, nanomaterials, materials for energy and environment, photoelectric functional materials, and so on.

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A designable magnetic MOF composite and facile coordination-based post-synthetic strategy for the enhanced removal of Hg²⁺ from water

Abstract: A magnetic MOF composite with a core–shell nanostructure was prepared and demonstrated to be effective for the removal of Hg2+ from water.

Cited by 197 publications

References 72 publications

In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform

In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform

Fe₃O₄@MOF Magnetic Nanocomposites: Synthesis and Applications

Strategies for Overcoming Defects of HKUST‐1 and Its Relevant Applications

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A designable magnetic MOF composite and facile coordination-based post-synthetic strategy for the enhanced removal of Hg2+ from water

Abstract: A magnetic MOF composite with a core–shell nanostructure was prepared and demonstrated to be effective for the removal of Hg2+ from water.

Cited by 197 publications

References 72 publications

In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform

In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform

Fe3O4@MOF Magnetic Nanocomposites: Synthesis and Applications

Strategies for Overcoming Defects of HKUST‐1 and Its Relevant Applications

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A designable magnetic MOF composite and facile coordination-based post-synthetic strategy for the enhanced removal of Hg²⁺ from water

Fe₃O₄@MOF Magnetic Nanocomposites: Synthesis and Applications