Recent advances in synthesis, characterization, and applications of nanoparticles for contaminated water treatment- A review

Punia, Pinki; Bharti, Manish Kumar; Chalia, Sonia; Dhar, Rakesh; Ravelo, Blaise; Thakur, Preeti; Thakur, Atul

doi:10.1016/j.ceramint.2020.09.050

Cited by 132 publications

(25 citation statements)

References 260 publications

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“…Nanoferrites are ceramic powders exhibiting strong ferrimagnetic properties owing to iron oxides being their core component (Rana et al 2015 ). The ferrites are classified based on their crystalline structure; (a) hexagonal (MFe 12 O 19 ), (b) garnet (M 3 Fe 5 O 12 ), and (c) spinel (MFe 2 O 4 ), where M generally represents one or more bivalent transition metals (Mn, Fe, Co, Ni, Cu, and Zn) (Bharti et al 2020 ; Punia et al 2020 ). A nanoscale catalyst with magnetic properties facilitates easier separation and recovery by applying an external magnetic field (Gardy et al 2019 ; Thakur et al 2020 ).…”

Section: Nanoferrites As Catalystsmentioning

confidence: 99%

“…Nanoferrites are ceramic powders exhibiting strong ferrimagnetic properties owing to iron oxides being their core component (Rana et al 2015 (Bharti et al 2020;Punia et al 2020). A nanoscale catalyst with magnetic properties facilitates easier separation and recovery by applying an external magnetic field (Gardy et al 2019;Thakur et al 2020).…”

Section: Nanoferrites As Catalystsmentioning

confidence: 99%

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Nanoferrites heterogeneous catalysts for biodiesel production from soybean and canola oil: a review

et al. 2021

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Fossil fuel depletion and pollution are calling for alternative, renewable energies such as biofuels. Actual challenges include the design of efficient processes and catalysts to convert various feedstocks into biofuels. Here, we review nanoferrites heterogeneous catalysts to produce biodiesel from soybean and canola oil. For that, transesterification is the main synthesis route and offers simplicity, cost-effectiveness, better process control, and high conversion yield. Catalysis with nanoferrites and composites allow to obtain yields higher than 95% conversion with less than 5.0 wt.% of catalyst loading at 80 °C in 1–2 h. More than 90% conversion yields can be achieved with a moderate alcohol/oil molar ratio, i.e., between 12:1 to 16:1. Catalyst recovery is easy due to the magnetic properties of nanoferrite, which can be effectively reused up to 4 times with less than 10% loss of catalytic efficiency.

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Section: Nanoferrites As Catalystsmentioning

confidence: 99%

Section: Nanoferrites As Catalystsmentioning

confidence: 99%

Nanoferrites heterogeneous catalysts for biodiesel production from soybean and canola oil: a review

et al. 2021

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“…Nanoparticles (NPs) can be obtained through various physical, chemical, or biological synthesis methods [ 1 ]. Details of the NPs manufacturing process are essential since they may affect the photocatalytic, adsorptive, thermal, and optical properties of metal oxides such as cerium oxide (CeO 2 ) and titanium oxide (TiO 2 ), which depend on the particle size, shape, and crystal morphology [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Strain and Grain Size Determination of CeO2 and TiO2 Nanoparticles: Comparing Integral Breadth Methods versus Rietveld, μ-Raman, and TEM

et al. 2021

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Various crystallite size estimation methods were used to analyze X-ray diffractograms of spherical cerium dioxide and titanium dioxide anatase nanoparticles aiming to evaluate their reliability and limitations. The microstructural parameters were estimated from several integral breadth methods such as Scherrer, Monshi, Williamson–Hall, and their variants: (i) uniform deformation model, (ii) uniform strain deformation model, and (iii) uniform deformation energy density model. We also employed the size–strain plot and Halder–Wagner method. For this purpose, an instrumental resolution function of an Al2O3 standard was used to subtract the instrumental broadening to estimate the crystallite sizes and strain, and the linear regression analysis was used to compare all the models based on the coefficient of determination. The Rietveld whole powder pattern decomposition method was introduced for comparison purposes, being the best candidate to fit the X-ray diffraction data of metal-oxide nanoparticles. Refined microstructural parameters were obtained using the anisotropic spherical harmonic size approach and correlated with the above estimation methods and transmission electron microscopy images. In addition, μ-Raman spectra were recorded for each material, estimating the mean crystallite size for comparison by means of a phonon confinement model.

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“…The zeta potential is an important characteristic that must be known about phytonanoparticles, since this characteristic influences other of equal importance, such as saturation solubility, dissolution rate, physical stability, and even biological performance [ 21 ]. A minimum of zeta potential (+25 mV or −25 mV) demonstrates stable nanostructures [ 22 ].…”

Section: Resultsmentioning

confidence: 99%

Zinc Oxide Phytonanoparticles’ Effects on Yield and Mineral Contents in Fruits of Tomato (Solanum lycopersicum L. cv. Cherry) under Field Conditions

Gutiérrez-Miceli

Oliva-Llaven

Luján-Hidalgo

et al. 2021

The Scientific World Journal

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The use of phytonanoparticles in agriculture could decrease the use of fertilizers and therefore decrease soil contamination, due to their size being better assimilated in plants. It is important to mention that the nanofertilizer is slow-releasing and improves plant physiological properties and various nutritional parameters. The influence of soil and foliar applications of phytonanoparticles of ZnO with the Moringa oleifera extract under three concentrations (25, 50, and 100 ppm) was evaluated on the cherry tomato crop (Solanum lycopersicum L.). Synthesis of the phytonanoparticles was analyzed with ultraviolet-visible spectroscopy (UV-Vis) and infrared transmission spectroscopy with Fourier transform (FT-IR), as well as the analysis with the dynamic light scattering (DLS) technique. The morphometric parameters were evaluated before and after the application of the nanoparticles. The minerals’ content of fruits was done 95 days after planting. Results showed that soil application was better at a concentration of 25 ppm of phytonanoparticles since it allowed the greatest number of flowers and fruits on the plant; however, it was demonstrated that when performing a foliar application, the fruit showed the highest concentrations for the elements Mg, Ca, and Na at concentrations of 511, 4589, and 223 mg kg−1, respectively.

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Recent advances in synthesis, characterization, and applications of nanoparticles for contaminated water treatment- A review

Cited by 132 publications

References 260 publications

Nanoferrites heterogeneous catalysts for biodiesel production from soybean and canola oil: a review

Nanoferrites heterogeneous catalysts for biodiesel production from soybean and canola oil: a review

Strain and Grain Size Determination of CeO2 and TiO2 Nanoparticles: Comparing Integral Breadth Methods versus Rietveld, μ-Raman, and TEM

Zinc Oxide Phytonanoparticles’ Effects on Yield and Mineral Contents in Fruits of Tomato (Solanum lycopersicum L. cv. Cherry) under Field Conditions

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