Fe nanoparticles encapsulated in MOF-derived carbon for the reduction of 4-nitrophenol and methyl orange in water

Ahsan, Ariful; Deemer, Eva; Fernandez‐Delgado, Olivia; Wang, Huiyao; Curry, Michael L.; El-Gendy, Ahmed A.; Noveron, Juan C.

doi:10.1016/j.catcom.2019.105753

Cited by 87 publications

(34 citation statements)

References 33 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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“…The environmental water pollution due to the occupancy of upraised concentrations of a wide diversity of pollutants such as dyes, antibiotics, organic compounds, and heavy metal ions has been extensively reported in different parts of developed and developing nations in recent decades [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. Global industrialization and the untreated discharge of wastewater into natural water sources are among the core reasons for severe water pollution [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Aminophosphonic Acid Functionalized Cellulose Nanofibers for Efficient Extraction of Trace Metal Ions

et al. 2020

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Cellulose nanofibers were covalently functionalized using diethylenetriamine penta (methylene phosphonic acid) and studied for the extraction of heavy metal ions. The surface-functionalized nanofibers showed a high adsorption capacity towards heavy metal ions as compared to bare nanofibers. The elemental composition and surface morphology of the prepared bio-adsorbent was characterized by X-ray photoelectron spectroscopy, attenuated total reflectance infrared spectroscopy, field emission scanning electron microscopy, and energy dispersive spectroscopy. The prepared material was studied to develop a column-based solid phase extraction method for the preconcentration of trace metal ions and their determination by inductively coupled plasma optical emission spectroscopy. The batch experimental data was well fitted to Langmuir adsorption isotherms (R2 > 0.99) and follows pseudo-second-order kinetics. The experimental variables such as sample pH, equilibrium time, column breakthrough, sorption flow rate, the effect of coexisting ions, and eluent type were systematically studied and optimized accordingly. The detection limit of the proposed method was found to be 0.03, 0.05, and 0.04 µg L−1 for Cu(II), Pb(II), and Cd(II), respectively. Certified Reference Materials were analyzed to validate the proposed method against systematic and constant errors. At a 95% confidence level, the Student’s t-test values were less than the critical Student’s t value (4.302). The developed method was successfully employed for the preconcentration and determination of trace metal ions from real water samples such as river water and industrial effluent.

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“…Hence, transition metals have been regarded as one of candidate due to their diversity of oxidation states and low cost. [17][18] In recent years, many transition metals have been synthesized into bimetallic catalysts and bimetal oxysulfide catalysts for reduction of organic pollutants. Xu et al [19] studied graphene supported Cu@Ni bimetallic catalysts for the reduction of 4-NP.…”

Section: Introductionmentioning

confidence: 99%

A new La‐Doped CuBi₂O₄ Catalysts for the Reduction of Nitroaromatic Compounds and Toxic Organic Dyes

Yang

Quan

et al. 2020

ChemistrySelect

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The new La‐doped CuBi2O4 catalysts were prepared by one‐pot hydrothermal method. The prepared catalysts were investigated by high‐resolution transmission electron microscopy (HRTEM), powder X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), Hydrogen temperature‐programmed desorption (H2‐TPD), and Electrochemical impedance spectroscopy (EIS). The synthetic catalysts have been investigated for the reduction of 4‐nitrophenol and toxic organic dyes. La‐doping improve the surface electron transport and H2‐adsorption ability. The La−CuBi2O4(C) catalyst has higher electron transfer efficiency and stronger H absorption ability. It was proposed that the doped La3+ and surface hydrogen species play key roles in reduction reaction. The electron transfer can be achieved by La3+ capture electron to be reduced La2+, then La2+ return to original state. Meanwhile, the improvement of H absorption ability due to La‐doping is also benefit to reduce the 4‐NP. This study is helpful in acquiring an in‐depth insight into the catalytic role of doping.

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Fe nanoparticles encapsulated in MOF-derived carbon for the reduction of 4-nitrophenol and methyl orange in water

Cited by 87 publications

References 33 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

Aminophosphonic Acid Functionalized Cellulose Nanofibers for Efficient Extraction of Trace Metal Ions

A new La‐Doped CuBi₂O₄ Catalysts for the Reduction of Nitroaromatic Compounds and Toxic Organic Dyes

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Fe nanoparticles encapsulated in MOF-derived carbon for the reduction of 4-nitrophenol and methyl orange in water

Cited by 87 publications

References 33 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

Aminophosphonic Acid Functionalized Cellulose Nanofibers for Efficient Extraction of Trace Metal Ions

A new La‐Doped CuBi2O4 Catalysts for the Reduction of Nitroaromatic Compounds and Toxic Organic Dyes

Contact Info

Product

Resources

About

A new La‐Doped CuBi₂O₄ Catalysts for the Reduction of Nitroaromatic Compounds and Toxic Organic Dyes