Ultrafast catalytic reduction of environmental pollutants in water via MOF-derived magnetic Ni and Cu nanoparticles encapsulated in porous carbon

Ahsan, Ariful; Jabbari, Vahid; El-Gendy, Ahmed A.; Curry, Michael L.; Noveron, Juan C.

doi:10.1016/j.apsusc.2019.143608

Cited by 88 publications

(43 citation statements)

References 63 publications

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“…TiO 2 -NPs significantly reduced the toxic effects of tetracycline on rice in terms of its fresh biomass and levels of antioxidant enzymes [15]. Most of the studies about the effect of nanoparticles on heavy metals behaviour were conducted in hydroponic conditions, and only a few were conducted in soil conditions [4,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Metal Oxide Nanoparticles on the Chemical Speciation of Heavy Metals and Micronutrient Bioavailability in Paddy Soil

Zhang

Long

et al. 2020

IJERPH

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The effects of engineered nanoparticles (ENPs) on heavy metal fate and biotoxicity in farmland soil are mostly unknown. A flooding–drying simulation experiment was conducted to study the effects of three typical metal oxide nanoparticles (TiO2-NPs, ZnO-NPs and CuO-NPs) on the chemical speciation of heavy metals and micronutrient bioavailability in paddy soil. The results showed that the addition of ZnO-NPs and CuO-NPs caused significant increases in soil pH, Eh and EC after a 90-d flooding–drying process. ZnO-NPs and CuO-NPs addition caused clearly increase in the Zn and Cu concentrations in the acid-soluble fraction, Fe/Mn oxides-bound fraction and organic-bound fraction, leading to higher bioavailability in the soil. DTPA-extractable Zn and Cu increased to 184.6 mg kg−1 and 145.3 mg kg−1 in the maximum ZnO-NPs and CuO-NPs concentration treatments (500 mg kg−1). TiO2-NPs promoted the transformation of Mn from a Fe/Mn oxides-bound fraction to an acid-soluble fraction. Soil Cd bioavailability obviously decreased in the TiO2-NPs treatment but increased in the ZnO-NPs and CuO-NPs treatments.

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Section: Introductionmentioning

confidence: 99%

Effect of Metal Oxide Nanoparticles on the Chemical Speciation of Heavy Metals and Micronutrient Bioavailability in Paddy Soil

Zhang

Long

et al. 2020

IJERPH

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“…Recent research exists about the applications of nanotechnology in water remediation. For example, due to its ultrahigh surface areas, nanoscale nickel metal organic frameworks (MOFs) decorated over graphene oxide (GO) and carbon nanotubes (CNTs) have been proposed as new adsorbents in water treatment to remove methylene blue (MB) [ 21 ], and MOFs-derived magnetic Ni and Cu nanoparticles have been studied in the catalysis of a sodium borohydride (NaBH 4 )-mediated reduction of environmental pollutants, such as 4-nitrophenol, methyl orange, and MB [ 22 ]. The upward trend of ENMs’ global production, as well as the widespread applications of nanotechnology could significantly increase the release of ENMs to the environment [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

A Review on the Environmental Fate Models for Predicting the Distribution of Engineered Nanomaterials in Surface Waters

Suhendra

Chang

Hou

et al. 2020

IJMS

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Exposure assessment is a key component in the risk assessment of engineered nanomaterials (ENMs). While direct and quantitative measurements of ENMs in complex environmental matrices remain challenging, environmental fate models (EFMs) can be used alternatively for estimating ENMs’ distributions in the environment. This review describes and assesses the development and capability of EFMs, focusing on surface waters. Our review finds that current engineered nanomaterial (ENM) exposure models can be largely classified into three types: material flow analysis models (MFAMs), multimedia compartmental models (MCMs), and spatial river/watershed models (SRWMs). MFAMs, which is already used to derive predicted environmental concentrations (PECs), can be used to estimate the releases of ENMs as inputs to EFMs. Both MCMs and SRWMs belong to EFMs. MCMs are spatially and/or temporally averaged models, which describe ENM fate processes as intermedia transfer of well-mixed environmental compartments. SRWMs are spatiotemporally resolved models, which consider the variability in watershed and/or stream hydrology, morphology, and sediment transport of river networks. As the foundation of EFMs, we also review the existing and emerging ENM fate processes and their inclusion in recent EFMs. We find that while ENM fate processes, such as heteroaggregation and dissolution, are commonly included in current EFMs, few models consider photoreaction and sulfidation, evaluation of the relative importance of fate processes, and the fate of weathered/transformed ENMs. We conclude the review by identifying the opportunities and challenges in using EFMs for ENMs.

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“…In the last decades the development of novel nanomaterials have gained increasing interest due to their fascinating physicochemical properties, which offer a great potential in different fields, such as (bio)analytical chemistry [3,4], water treatment [5], catalysis, electrocatalysis [6][7][8][9], cancer treatment [10], energy storage devices [11], etc. Although there is no much information available about production of QDs, it was possible to estimate worldwide and Europe-wide production and use of ten different nanomaterials, including quantum dots, from a survey sent to companies producing and using engineered nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Quantum Dot bioconjugates for diagnostic applications

Díaz‐González

Escosura‐Muñiz

Fernández-Argüelles

et al. 2020

Topics in Current Chemistry Collections

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Quantum Dots (QDs) are a special type of engineered nanomaterials with outstanding optoelectronic properties make them as a very promising alternative to conventional luminescent dyes for biomedical applications, including biomolecule targeting, luminescence imaging as well as in drug delivery.A key parameter to ensure successful biomedical applications of QDs is that the surface of these nanomaterials should be modified with appropriate functional groups to ensure stability in aqueous solutions and conjugated with recognition elements capable to ensure an efficient tagging of the biomolecules of interest.Here, we present a review summarizing most relevant strategies for QDs surface modification and for their conjugation to biomolecules for preparation of nanoplatforms for luminescent biomolecule sensing and imaging-guided targeting. Applications of conjugations of photoluminescent QDs with different biomolecules in both in vitro and in vivo chemical sensing, immunoassays or luminescence imaging are revised. Recent progress in application of functionalized QDs in ultrasensitive detection in bioanalysis, diagnostics and imaging strategies developments are here included. Finally, some key future research goals in the progress of bioconjugation of QDs for diagnosis are identified, including novel synthetic approaches, the need of exhaustive characterization of bioconjugates or the design of signal amplification schemes.

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Ultrafast catalytic reduction of environmental pollutants in water via MOF-derived magnetic Ni and Cu nanoparticles encapsulated in porous carbon

Cited by 88 publications

References 63 publications

Effect of Metal Oxide Nanoparticles on the Chemical Speciation of Heavy Metals and Micronutrient Bioavailability in Paddy Soil

Effect of Metal Oxide Nanoparticles on the Chemical Speciation of Heavy Metals and Micronutrient Bioavailability in Paddy Soil

A Review on the Environmental Fate Models for Predicting the Distribution of Engineered Nanomaterials in Surface Waters

Quantum Dot bioconjugates for diagnostic applications

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