Cerium oxide nanoparticles: Advances in synthesis, prospects and application in agro-ecosystem

Ayub, Muhammad Ashar; Sohail, Muhammad; Umair, Muhammad; Rehman, Muhammad Zia ur; Usman, Muhammad; Ṣābir, Muḥammad; Rizwan, Muhammad; Ali, Shafaqat; Ahmad, Zahoor

doi:10.1016/bs.coac.2019.10.003

Cited by 13 publications

(3 citation statements)

References 210 publications

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“…TOPO was chosen as the HBA due to its high hydrophobicity (log K ow ≈ 9.6) and high extraction efficiency for rare earth analytes previously reported in literature. , Among the REEs, cerium was selected for analysis due to its abundance and diverse applications, which stand out distinctively from those of other lanthanide elements. These include, but are not limited to agriculture, microelectronics, magnetism, catalyst, and luminescence . The different HDES were prepared by using TOPO as the HBA, combined with various HBDs, including alcohols (propanol), long-chain acids (octanoic acid), and terpenes ( l -menthol).…”

Section: Introductionmentioning

confidence: 99%

Extraction of Rare Earth Elements from Water by Trioctylphosphine Oxide-Based Hydrophobic Deep Eutectic Solvents

Guidugli,

Reza

2024

Ind. Eng. Chem. Res.

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The rising global demand for rare earth elements (REEs) underscores the need for efficient extraction and recovery techniques. Although the REE industry has employed various techniques, including ion exchange, electrochemical processes, and solvent extraction, there is still a demand for the development of novel solvents that could efficiently extract REEs from water without severe environmental compromise. This paper evaluates hydrophobic deep eutectic solvents (HDESs) for extracting cerium(III)�a representative REE from aqueous solutions by combining trioctylphosphine oxide (TOPO) as a hydrogen bond acceptor (HBA) with environmentally friendly hydrogen bond donors (HBDs) including propanol, DL-menthol, and octanoic acid. The study further explored and discussed cerium(III) extraction behavior under various experimental conditions, including different HDES combinations, HBA-to-HBD ratios, and settling times. The screening charge for the systems was further investigated using COSMO-RS by generating sigma surfaces and sigma potentials. Among the various HDES developed, TOPO/propanol (1:1) exhibited the best extraction efficiency (93.8 ± 1.54%) in a 30 mM cerium(III) nitrate solution. Finally, the mass transfer coefficient for the three solvents was evaluated. The results for TOPO/propanol, TOPO/DL-menthol, and TOPO/octanoic acid were 8.90 × 10 −6 , 7.05 × 10 −6 , and 6.14 × 10 −7 m•s −1 , respectively.

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Section: Introductionmentioning

confidence: 99%

Extraction of Rare Earth Elements from Water by Trioctylphosphine Oxide-Based Hydrophobic Deep Eutectic Solvents

Guidugli,

Reza

2024

Ind. Eng. Chem. Res.

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“…Cerium NPs are important as they are used in energy storage, polishing, personal care, cosmetics, biomedical industries, and as catalysts, and their market is projected to reach $2.1156 billion by 2030 (Allied Market Research Report A01390, 2021). As cerium and its nanoparticles are widely used in various industrial activities ( Dahle and Arai, 2015 ; Rajeshkumar and Naik, 2018 ; Ayub et al., 2019 ), it has become an attractive topic of discussion due to the increasing risk of an influx into the human food chain via agriculture. CeO 2 -NPs have been categorized as a top 13 engineered nanomaterial ( Organization for Economic Cooperation and Development, 2008 ) and have physical and chemical properties that make them suitable for a wide range of applications due to their crystal lattice oxygen chemistry ( Rzigalinski et al., 2006 ; Korsvik et al., 2007 ; Jiao et al., 2012 ; Dowding et al., 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Divergent effects of cerium oxide nanoparticles alone and in combination with cadmium on nutrient acquisition and the growth of maize (Zea mays)

et al. 2023

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IntroductionThe increasing use of cerium nanoparticles (CeO2-NPs) has made their influx in agroecosystems imminent through air and soil deposition or untreated wastewater irrigation. Another major pollutant associated with anthropogenic activities is Cd, which has adverse effects on plants, animals, and humans. The major source of the influx of Cd and Ce metals in the human food chain is contaminated food, making it an alarming issue; thus, there is a need to understand the factors that can reduce the potential damage of these heavy metals.MethodsThe present investigation was conducted to evaluate the effect of CeO2-10-nm-NPs and Cd (alone and in combination) on Zea mays growth. A pot experiment (in sand) was conducted to check the effect of 0, 200, 400, 600, 1,000, and 2,000 mg of CeO2-10 nm-NPs/kg-1 dry sand alone and in combination with 0 and 0.5 mg Cd/kg-1 dry sand on maize seedlings grown in a partially controlled greenhouse environment, making a total of 12 treatments applied in four replicates under a factorial design. Maize seedling biomass, shoot and root growth, nutrient content, and root anatomy were measured.Results and discussionThe NPs were toxic to plant biomass (shoot and root dry weight), and growth at 2,000 ppm was the most toxic in Cd-0 sets. For Cd-0.5 sets, NPs applied at 1,000 ppm somewhat reverted Cd toxicity compared with the contaminated control (CC). Additionally, CeO2-NPs affected Cd translocation, and variable Ce uptake was observed in the presence of Cd compared with non-Cd applied sets. Furthermore, CeO2-NPs partially controlled the elemental content of roots and shoots (micronutrients such as B, Mn, Ni, Cu, Zn, Mo, and Fe and the elements Co and Si) and affected root anatomy.

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“…Earthworms (Eisenia fetida), as a bio-indicator organism having strong interactions with soil, can be assessed to help determine the toxicity of different nCeO 2 concentrations. The nCeO 2 -induced accumulations of ROS and oxidative damage, shorten the earthworm life span (Ayub et al 2019). However, the obvious growth and stress responses do not fully explain the internal metabolic adjustments earthworms undergo to adapt to stress conditions.…”

Section: Introductionmentioning

confidence: 99%

Divergent Responses of Earthworms (Eisenia Foetida) in Sandy Loam and Clay Soils to Cerium Dioxide Nanoparticles

Cao

Xia

et al. 2022

Preprint

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The reported biological effects of cerium dioxide nanoparticles (nCeO2) in soils range from toxic to protective. However, divergences of nCeO2 toxicity in soils of different textures are not known. In this study, the availability of nCeO2 on earthworms (Eisenia foetida) in sandy loam soils and clay soils were discussed, and the biological effects of nCeO2 (0-1000 mg/kg) on earthworms in two soils were investigated. The results showed the bioaccumulation and biological effects of Ce on earthworms in the two soils were inconsistent. The BCR sequential extraction revealed that the major portions of Ce in both soils were in the residual form (98%-99%), and the acid-soluble Ce fraction were greater in clay soils. However, compared with clay soils, nCeO2 was more toxic to earthworms in sandy loam soils as assesses by earthworm biomass, morphology, and antioxidative damage. Thus, the high ecological risk of nCeO2 in sandy loam soils with higher pH and lower clay contents needs to be avoided, being used in agriculture to improve both crop yield and quality.

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Cerium oxide nanoparticles: Advances in synthesis, prospects and application in agro-ecosystem

Cited by 13 publications

References 210 publications

Extraction of Rare Earth Elements from Water by Trioctylphosphine Oxide-Based Hydrophobic Deep Eutectic Solvents

Extraction of Rare Earth Elements from Water by Trioctylphosphine Oxide-Based Hydrophobic Deep Eutectic Solvents

Divergent effects of cerium oxide nanoparticles alone and in combination with cadmium on nutrient acquisition and the growth of maize (Zea mays)

Divergent Responses of Earthworms (Eisenia Foetida) in Sandy Loam and Clay Soils to Cerium Dioxide Nanoparticles

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