3D, eco-friendly metal-organic frameworks@carbon nanotube aerogels composite materials for removal of pesticides in water

Liang, Wenlong; Wang, Biao; Cheng, Jing-Li; Xiao, Douxin; Xie, Zhengang; Zhao, Jinhao

doi:10.1016/j.jhazmat.2020.123718

Cited by 116 publications

(33 citation statements)

References 50 publications

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“…Fourier transform infrared (FTIR) spectra demonstrated that the same characteristic peaks (Zn–N stretching and CN bending) can be observed for ZIF-8 and PD@ZIF-8, which proved that the structure of ZIF-8 was not changed after Pro and Da loading (Figure f). Moreover, the peaks of CO and amide II of Da and Pro were observed in PD@ZIF-8, which also indicated that Pro and Da were successfully loaded by the ZIF-8 nanoparticles.…”

Section: Resultsmentioning

confidence: 76%

A Light-Triggered pH-Responsive Metal–Organic Framework for Smart Delivery of Fungicide to Control Sclerotinia Diseases of Oilseed Rape

et al. 2021

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Using a simple one-pot method, we developed a prochloraz (Pro) and pH-jump reagent-loaded zeolitic imidazolate framework-8 (PD@ZIF-8) composite for the smart control of Sclerotinia disease. The pH-jump reagent can induce the acidic degradation of ZIF-8 using UV light to realize the controlled release of Pro. Thus, the physical properties of PD@ZIF-8, such as its release, formulation stability, and adhesion, were investigated in detail. The results showed that the quantity of Pro released by PD@ZIF-8 under UV light irradiation (365 nm) was 63.4 ± 3.5%, whereas under dark conditions, it was only 13.7 ± 0.8%. In vitro activity indicated that the EC50 of PD@ZIF-8 under UV light irradiation was 0.122 ± 0.02 μg/mL, which was not significantly different from that of Pro (0.107 ± 0.01 μg/mL). Pot experiments showed that the efficacy of PD@ZIF-8 under light irradiation was 51.2 ± 5.7% for a fungal infection at 14 days post-spraying, whereas the effectiveness of prochloraz emulsion in water was only 9.3 ± 3.3%. Furthermore, fluorescence tracking of ZIF-8 and biosafety experiments showed that ZIF-8 could be absorbed by plant leaves and transported to various parts of oilseed rape in a short period of time and that PD@ZIF-8 was relatively safe for plants and HepG2 cells. These results highlight the potential of the composite to provide efficient and smart delivery of fungicides into plants for protection against diseases and provide an idea for developing sustainable agriculture.

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Section: Resultsmentioning

confidence: 76%

A Light-Triggered pH-Responsive Metal–Organic Framework for Smart Delivery of Fungicide to Control Sclerotinia Diseases of Oilseed Rape

et al. 2021

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“…And some impressive methods can achieve this goal but have high requirements for frame stability,w hich limits the types of used MOFs. [33] Fort he above considerations,t he strategy of introducing carbon sources to in situ generate carbon materials via am ild transformation in the framework was adopted. To achieve above goals,i ti sn ecessary to match the size of precursor molecules with the channels in framework, and the transition stability of material should be within the thermal stability range of MOFs.F inally,t hirteen kinds of common organic molecules were chosen as candidates for carbon sources due to their rich C, Ne lements composition.…”

Section: Resultsmentioning

confidence: 99%

A Facile Strategy for Constructing a Carbon‐Particle‐Modified Metal–Organic Framework for Enhancing the Efficiency of CO₂ Electroreduction into Formate

et al. 2021

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Electrocatalytic reduction of CO2 by metal–organic frameworks (MOFs) has been widely investigated, but insufficient conductivity limits application. Herein, a porous 3D In‐MOF {(Me2NH2)[In(BCP)]⋅2 DMF}n (V11) with good stability was constructed with two types of channels (1.6 and 1.2 nm diameter). V11 exhibits moderate catalytic activity in CO2 electroreduction with 76.0 % of Faradaic efficiency for formate (FEHCOO‐). Methylene blue molecules of suitable size and pyrolysis temperature were introduced and transformed into carbon particles (CPs) after calcination. The performance of the obtained CPs@V11 is significantly improved both in FEHCOO‐ (from 76.0 % to 90.1 %) and current density (2.2 times). Control experiments show that introduced CPs serve as accelerant to promote the charges and mass transfer in framework, and benefit to sufficiently expose active sites. This strategy can also work on other In‐MOFs, demonstrating the universality of this method for electroreduction of CO2.

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“…Recently, Kien et al prepared and proved carbon aerogel's competence for removing pesticides such as DDT and cypermethrin up to 95-99% from polluted river water samples in Cuu Long Delta [171]. Modified metalorganic frameworks (MOFs) composite with carbon nanoparticles aerogels have been synthesized for removing the toxic pesticides polluting water [62] (Table 3).…”

Section: Removal Of Pesticides By Aerogelsmentioning

confidence: 99%

Multifunctional Composite Aerogels—As Micropollutant Scavengers

Mertah

James

Zargar

et al. 2021

Inorganic-Organic Composites for Water and Wastewater Treatment

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Composite aerogels are low-density porous material with a high surface area, facilitating their application in wastewater treatment. The surface of these aerogels can be modified based on the ionic charge of the target pollutants. Improved properties like high gas holdup, a low mean free path of diffusion, high mechanical strength, and integrated 3D gel architecture make them an ideal matrix for several environmental applications. This review focuses on carbon, silica, metal-based, and biopolymer composite aerogels toward effluent treatment. The challenges in the synthesis of aerogels using various reduction methods and strategies for surface modification of aerogels having improved water treatment properties are compared. Composite aerogels' application for removing textile dyes, heavy metals, and pesticides, and the oil separation is discussed along with relevant reaction kinetics. The adsorptive and photocatalytic removal of micropollutants by aerogels are also compared. Though several novel composite aerogels have been experimented with in wastewater treatment, the toxicity implications limit their extensive scale application. The toxicity of precursor compounds such as polyacrylonitrile, resorcinol-formaldehyde, phenol, Tetramethyl orthosilicate (TMOS), and leaching of nanoparticles from aerogels are discussed. As a solution to these impediments, bio-aerogels' use and O. Mertah et al.-All authors contributed equally.

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3D, eco-friendly metal-organic frameworks@carbon nanotube aerogels composite materials for removal of pesticides in water

Cited by 116 publications

References 50 publications

A Light-Triggered pH-Responsive Metal–Organic Framework for Smart Delivery of Fungicide to Control Sclerotinia Diseases of Oilseed Rape

A Light-Triggered pH-Responsive Metal–Organic Framework for Smart Delivery of Fungicide to Control Sclerotinia Diseases of Oilseed Rape

A Facile Strategy for Constructing a Carbon‐Particle‐Modified Metal–Organic Framework for Enhancing the Efficiency of CO₂ Electroreduction into Formate

Multifunctional Composite Aerogels—As Micropollutant Scavengers

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3D, eco-friendly metal-organic frameworks@carbon nanotube aerogels composite materials for removal of pesticides in water

Cited by 116 publications

References 50 publications

A Light-Triggered pH-Responsive Metal–Organic Framework for Smart Delivery of Fungicide to Control Sclerotinia Diseases of Oilseed Rape

A Light-Triggered pH-Responsive Metal–Organic Framework for Smart Delivery of Fungicide to Control Sclerotinia Diseases of Oilseed Rape

A Facile Strategy for Constructing a Carbon‐Particle‐Modified Metal–Organic Framework for Enhancing the Efficiency of CO2 Electroreduction into Formate

Multifunctional Composite Aerogels—As Micropollutant Scavengers

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A Facile Strategy for Constructing a Carbon‐Particle‐Modified Metal–Organic Framework for Enhancing the Efficiency of CO₂ Electroreduction into Formate