CoFe2O4-chitosan-graphene nanocomposite for glyphosate removal

Briceño, Sarah; Reinoso, Carlos

doi:10.1016/j.envres.2022.113470

Cited by 17 publications

(7 citation statements)

References 19 publications

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“…IR spectra show the presence of vibrations of various groups of atoms of the organic and inorganic parts of the composite material. For the organic part, the oscillation patterns are (-OH) 3340-3450 cm −1 [39,40], (C-C) 1616-1710 cm −1 [40,41], (C-O) 1000-1200 cm −1 [39], (C-H) 810 cm −1 [39]. The oxide part of the composite is characterised by fluctuations of groups of atoms (Fe 3+ -O)A 580-590 cm −1 [42], (Co, Ni-O)B 460-470 cm -1 [30].…”

Section: Resultsmentioning

confidence: 99%

Simple single reactor synthesis of nickel (II)-cobalt (II) ferrite composites with biochar and their photocatalytic properties

Shabelskaya,

Arzumanova,

Gaidukova

et al. 2023

Adv. Nat. Sci: Nanosci. Nanotechnol.

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The paper proposes a simple one-stage synthesis of ferrite/biochar composites based on oxide compounds of NixCo1-xFe2O4 (х = 0, 0.5, and 1). The obtained materials were characterised using x-ray diffraction patterns, Fourier transform infrared (FTIR) spectrometry, electron microscopy, Scherrer and Williamson-Hall methods. The high photocatalytic activity of the synthesised materials in the process of methyl orange oxidative degradation at hydrogen peroxide presence has been established. It is noted that the highest catalytic activity is exhibited by the composite material based on cobalt (II) ferrite and sunflower biochar: in their presence, it is possible to achieve 100% removal of the dye after 120 and 90 min, respectively. A possible mechanism of the dye decomposition process is discussed.

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Section: Resultsmentioning

confidence: 99%

Simple single reactor synthesis of nickel (II)-cobalt (II) ferrite composites with biochar and their photocatalytic properties

Shabelskaya,

Arzumanova,

Gaidukova

et al. 2023

Adv. Nat. Sci: Nanosci. Nanotechnol.

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“…A wide range of pesticides are used, such as glyphosate, malathion, acetamiprid, oxyfluorfen, diazinon, and chlorpyrifos. Glyphosate is widely used due to its low cost, simplicity of use, superior removal, and processing rates [185]. On the other hand, malathion has been used a lot due to its low toxicity and superb selectivity for insects [186].…”

Section: Pesticidesmentioning

confidence: 99%

“…Glyphosate is the pesticide that has received the most attention since the beginning of the millennium [189]. The main component of numerous commercial formulations of herbicides is glyphosate (N-(phosphonomethyl) glycine), an organophosphorus chemical [185,190]. The main issue with glyphosate use is wastewater intrusion into streams and aquifers [185,191].…”

Section: Glyphosatementioning

confidence: 99%

“…The main component of numerous commercial formulations of herbicides is glyphosate (N-(phosphonomethyl) glycine), an organophosphorus chemical [185,190]. The main issue with glyphosate use is wastewater intrusion into streams and aquifers [185,191]. The ocean, fauna, flora, and ecological matrices (water and soil) are all in danger due to glyphosate contamination, which is a cumulative and continuous deterioration [185,191].…”

Section: Glyphosatementioning

confidence: 99%

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A Comprehensive Review of the Developments in Electrocoagulation for the Removal of Contaminants from Wastewater

Ammar,

Yousef,

Mahmoud

et al. 2023

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Water organic pollution has become a major issue. A large number of people suffer from the decline in water quality. In addition, polluted water can lead to health problems or excessive deaths. In this regard, an increasingly important method for efficient water treatment is electrocoagulation (EC), the technology that encompasses a small equipment size combined with a simple operation compared to other water treatment methods. The importance of EC is especially accentuated by the recent decarbonization efforts due to the increasing availability of renewable electricity systems. This review provides an overview of the most recent developments in EC technology as it pertains to wastewater treatment. The EC is preferred for organic wastewater treatment over other traditional treatment methods due to its easy setup and low material costs. Moreover, the EC is very powerful in destabilizing organic impurities by charge neutralization and then coagulating to form flocs. In addition, EC has shown high efficiency not only in removing various organic pollutants but also in emerging persistent contaminants, such as microplastics. For these reasons, the EC mechanisms and related functional modalities are reviewed, as well as extensive details are provided on the diversity of the removed contaminants. Overall, this review provides significant new knowledge of interest for environmental chemical researchers in particular and engineers in general on the details of the EC technology for wastewater treatment and water purification.

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“…Nanoparticles have been used widely with the advancement of nanotechnology due to their exceptional features, 1 and nanomaterials are essential in crop production due to their efficiency in promoting plant growth, improving plant nutrient availability, and defending against pesticides and herbicides. 2,3 Graphene is a two-dimensional honeycomb lattice structure constructed from sp 2 hybridized carbon atoms stacked above each other. 4 It is a significant new carbon nanomaterial with outstanding electrical and optical properties, a large specific surface area, high adsorption capacity and high porosity.…”

Section: Introductionmentioning

confidence: 99%

Regulatory effect of graphene on growth and carbon/nitrogen metabolism of maize (Zea mays L.)

Wang,

Liu

et al. 2023

J Sci Food Agric

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BACKGROUNDThe inevitable leakage of graphene into the environment results from its expanding employment. Although the impact of graphene on ecosystems is already in full swing, further information for impact on plant is lacking. Particularly, the effects of graphene on plant growth and development vary, and basic information on the regulation of carbon and nitrogen metabolism is lacking. Herein, the way graphene (0, 25, 50, 100, and 200 g·kg‐1) affects maize seedlings was studied in terms of morphological and biochemical indicators. The purpose of this study was to better understand how graphene regulates plant carbon and nitrogen metabolism and to understand its interactions with leaf structure and plant growth.RESULTSThe results showed that 50 g·kg‐1 graphene increased the plant height, stem diameter, leaf area, and dry weight, which, however, were inhibited by the high level of graphene (200 g·kg‐1). Further studies indicated that different concentrations of graphene could increase leaf thickness and vascular bundle area, as well as the net photosynthetic rate (Pn) of leaves. Besides, 25 g·kg‐1 and 50 g·kg‐1 graphene enhanced the leaves stomatal conductance (Cond), transpiration rate (Tr), intercellular carbon dioxide (Ci), and chlorophyll content, whereas higher concentrations decreased the above indicators. At 50 g·kg‐1, graphene increased the activity of carbon/nitrogen metabolism enzymes by increasing carbon metabolites (fructose, sucrose, and soluble sugars) and soluble proteins (nitrogen metabolites). These enzymes included sucrose synthase (SS), sucrose phosphate synthase (SPS), nitrate reductase (NR), glutamine synthase (GS), and glutamate synthase (GOGAT).CONCLUSIONThese results indicate that graphene can effectively regulate the activities of key enzymes involved in carbon and nitrogen metabolism and supplement nitrogen metabolism through substances produced by carbon metabolism by improving photosynthetic efficiency, thus maintaining carbon and nitrogen balance and promoting plant growth and development. The relationship between these indexes well explained the mechanism of graphene promoting the growth of maize seedlings by enhancing photosynthetic carbon metabolism and maintaining metabolic balance. For maize seedling growth, graphene treatment with 50 g·kg‐1 soil is recommended.This article is protected by copyright. All rights reserved.

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CoFe2O4-chitosan-graphene nanocomposite for glyphosate removal

Cited by 17 publications

References 19 publications

Simple single reactor synthesis of nickel (II)-cobalt (II) ferrite composites with biochar and their photocatalytic properties

Simple single reactor synthesis of nickel (II)-cobalt (II) ferrite composites with biochar and their photocatalytic properties

A Comprehensive Review of the Developments in Electrocoagulation for the Removal of Contaminants from Wastewater

Regulatory effect of graphene on growth and carbon/nitrogen metabolism of maize (Zea mays L.)

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