Iron–naphthalenedicarboxylic acid gels and their high efficiency in removing arsenic(<scp>v</scp>)

Sui, Jianfei; Wang, Lihuan; Zhao, Wenrong; Hao, Jingcheng

doi:10.1039/c6cc01621a

Cited by 39 publications

(30 citation statements)

References 34 publications

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“…The limit of detection (LOD), defined as ac hange of 10 %i ne mission intensity, [23] was calculated to be 3.50 mmol L À1 .T he sensing of Cu 2 + ions by other PL nanomaterials, such as Cd ots, has also been reported. [24] Although the LOD achieved by the fullerenols in the current study is not the lowest among the reported results, [25] the LOD value is considered sufficient to detect the overbalance of Cu 2 + ions in environmental science, and even in food chemistry when considering the high biocompatibility of fullerenols. More importantly,t hesem olecules could be used as multifunctional materials in biology and life sciences as fullerenols show important bioactivities, such as radical scavenging, andc an generate reactive oxygen speciesu nder photoirradiation.…”

Section: Spectroscopic Propertiesmentioning

confidence: 60%

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Fullerenols Revisited: Highly Monodispersed Photoluminescent Nanomaterials as Ideal Building Blocks for Supramolecular Chemistry

Zhou

Zhang

Feng

et al. 2018

Chemistry A European J

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Fullerenols have been known for decades; however, the photoluminescent (PL) properties and applications in supramolecular chemistry of these molecules have not been well addressed. Herein, a strategy has been developed to purify the as-prepared fullerenols, and the photoluminescence and capabilities of these molecules to form supramolecular self-assemblies were systematically studied. It was found that fullerenols show wavelength-dependent emission with an absolute fluorescent quantum yield of approximately 3.5 %. The PL characteristics are reminiscent of carbon dots, especially those obtained by using the top-down method. The studied fullerenols can be used to detect Cu ions with a limit of detection down to 3.50 μm. In addition, the amphiphilicity of the fullerenols can be readily tuned by ionic complexation with cationic surfactants, such as 1-tetradecyl-3-methylimidazoliumbromide (C mimB) and tetradecyltrimethylammonium bromide (TTAB). On increasing the concentration of the surfactant, the transition of aggregates was induced from highly ordered vesicles to honeycomb-structured crystals and finally to giant micelles. After the formation of supramolecular self-assemblies, enhancement of photoluminescence was observed, which can be ascribed to the suppression of intramolecular vibrations and motion combined with the loosely packed self-assembly array. This study provides a facile way to generate PL nanoarchitectures, which may find applications in fluorescent sensing, drug delivery, and optoelectronics.

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Section: Spectroscopic Propertiesmentioning

confidence: 60%

“…These conclusions gain support from previous reports. [24][25][26] The association constant (K)o ft he complexes can be obtained from the Benesie-Hildebrand Equation (1)…”

Section: Spectroscopic Propertiesmentioning

confidence: 99%

Fullerenols Revisited: Highly Monodispersed Photoluminescent Nanomaterials as Ideal Building Blocks for Supramolecular Chemistry

Zhou

Zhang

Feng

et al. 2018

Chemistry A European J

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“…Ferrous magnetic nanoparticles (MNPs) are outstanding adsorbents for iAs removal because of the strong and irreversible interaction between iAs and iron oxide1314. Superparamagnetic Fe 3 O 4 , Fe 3 O 4 -graphene composites, hematite-coated Fe 3 O 4 , and polystyrene-supported nano-Fe 3 O 4 have been exploited to remove iAs from water samples15161718.…”

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confidence: 99%

CoFe2O4@MIL-100(Fe) hybrid magnetic nanoparticles exhibit fast and selective adsorption of arsenic with high adsorption capacity

Yang

Yin

2017

Sci Rep

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In this study, we report the synthesis and application of mesoporous CoFe2O4@MIL-100(Fe) hybrid magnetic nanoparticles (MNPs) for the simultaneous removal of inorganic arsenic (iAs). The hybrid adsorbent had a core-shell and mesoporous structure with an average diameter of 260 nm. The nanoscale size and mesoporous character impart a fast adsorption rate and high adsorption capacity for iAs. In total, 0.1 mg L−1 As(V) and As(III) could be adsorbed within 2 min, and the maximum adsorption capacities were 114.8 mg g−1 for As(V) and 143.6 mg g−1 for As(III), higher than most previously reported adsorbents. The anti-interference capacity for iAs adsorption was improved by the electrostatic repulsion and size exclusion effects of the MIL-100(Fe) shell, which also decreased the zero-charge point of the hybrid absorbent for a broad pH adsorption range. The adsorption mechanisms of iAs on the MNPs are proposed. An Fe-O-As structure was formed on CoFe2O4@MIL-100(Fe) through hydroxyl substitution with the deprotonated iAs species. Monolayer adsorption of As(V) was observed, while hydrogen bonding led to the multi-layer adsorption of neutral As(III) for its high adsorption capacity. The high efficiency and the excellent pH- and interference-tolerance capacities of CoFe2O4@MIL-100(Fe) allowed effective iAs removal from natural water samples, as validated with batch magnetic separation mode and a portable filtration strategy.

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“…Such novel functionalized MOGs with self‐healing property and good conductivity are potentially used in the field of energy storage . Xerogels or aerogels, for example, prepared from MOGs, with porous structures and iron component are a class of good adsorbents for As(V) removal, which have been proved previously . Polycyclic aromatic hydrocarbons are common gelators, however, they are vital environmental pollutants.…”

Section: Introductionmentioning

confidence: 93%

“…Supramolecular self‐assembly has been proved to be a promising strategy for preparing functional materials . Metal‐organic gels (MOGs) can be prepared through self‐assembly of ligands with metal ions or metal clusters, which have attracted significant interest due to their potential applications in diverse areas such as catalysis, energy storage, template synthesis, and environmental technology . The porous structures and the introduced metal ions or metal clusters are the mayor factors which endow MOGs applications in these fields .…”

Section: Introductionmentioning

confidence: 99%

Metal‐organic gels of simple chemicals and their high efficacy in removing arsenic(V) in water

et al. 2018

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Metal‐organic gels (MOGs) have emerged as a class of functional materials that show great potential applications in the field of catalysis, energy storage, template synthesis, and environmental technology. The construction of functional MOGs and the control of functionality are still challenging due to complicated chemicals or routes involved in previous works. Here we report a series of tunable multifunctional MOGs by directly gelating between Fe3+ and simple chemicals, propanedioic acid (H2PA), succinic acid (H2SA), glutaric acid (H2GA), and fumaric acid (H2FA) in ethanol. The obtained MOGs exhibit self‐healing property and good conductivity, and were used for high efficacy removal of arsenic (As) in water. The ease, low cost, and scalability of the assembly process combined with multifunctionality make these MOGs be potentially applied in the fields of energy storage and sewage disposal. © 2018 American Institute of Chemical Engineers AIChE J, 64: 3719–3727, 2018

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Iron–naphthalenedicarboxylic acid gels and their high efficiency in removing arsenic(v)

Cited by 39 publications

References 34 publications

Fullerenols Revisited: Highly Monodispersed Photoluminescent Nanomaterials as Ideal Building Blocks for Supramolecular Chemistry

Fullerenols Revisited: Highly Monodispersed Photoluminescent Nanomaterials as Ideal Building Blocks for Supramolecular Chemistry

CoFe2O4@MIL-100(Fe) hybrid magnetic nanoparticles exhibit fast and selective adsorption of arsenic with high adsorption capacity

Metal‐organic gels of simple chemicals and their high efficacy in removing arsenic(V) in water

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