Growth of Iron Oxide Nanoparticles by Hydrothermal Process: Effect of Reaction Parameters on the Nanoparticle Size

Ozel, Fatmahan; Köçkar, Hakan; Karaağaç, Öznur

doi:10.1007/s10948-014-2707-9

Cited by 94 publications

(30 citation statements)

References 22 publications

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“…The average particle size of the specimen, in the case of the 5 nm particle size, was confirmed by employing the Scherrer equation to the XRD data. From these results it is clear that the reaction time is very effective in controlling the particle size up to 200 nm, [33] although longer reaction times did not result in further increase of the particle size presumably due to the fact that the capping agent, Oleylamine, was used in our synthetic approach. [34,35] Conclusions Phase pure, highly crystalline PbCuSbS 3 crystals were synthesized, for the first time, by a colloidal synthesis route.…”

Section: Resultsmentioning

confidence: 88%

Synthesis and Characterization of Bournonite PbCuSbS₃ Nanocrystals

Wei

Martin

Salvador

et al. 2015

Crystal Growth & Design

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PbCuSbS 3 nanocrystals were synthesized by a colloidal synthesis route and characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and electron diffraction spectroscopy (EDS). PbCuSbS 3 particle sizes of 5 nm, 150 nm, and 200 nm were obtained by adjusting the reaction time. The optical band-gap, thermal stability, heat capacity, and magnetic susceptibility of PbCuSbS 3 were also investigated. PbCuSbS 3 is diamagnetic with an optical band-gap of 1.31 eV and a Debye temperature of 157 K. This study aims to expand and broaden our knowledge of PbCuSbS 3 in light of the recent interest in multinary chalcogenides for energy-related applications. AbstractPbCuSbS 3 nanocrystals were synthesized by a colloidal synthesis route and characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and electron diffraction spectroscopy (EDS). PbCuSbS 3 particle sizes of 5 nm, 150 nm, and 200 nm were obtained by adjusting the reaction time. The optical band-gap, thermal stability, heat capacity, and magnetic susceptibility of PbCuSbS 3 were also investigated. PbCuSbS 3 is diamagnetic with an optical band-gap of 1.31 eV and a Debye temperature of 157 K. This study aims to expand and broaden our knowledge of PbCuSbS 3 in light of the recent interest in multinary chalcogenides for energy-related applications. _____________________________________________________________________________________ *

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Section: Resultsmentioning

confidence: 88%

Synthesis and Characterization of Bournonite PbCuSbS₃ Nanocrystals

Wei

Martin

Salvador

et al. 2015

Crystal Growth & Design

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“…The average size of the MgONRs can be noted to be smaller only at 20 min of reaction time compared to 15-25 min as mentioned in Table 2. The initial experiment to determine the time for nanorod formation also provides a [59], an increase in reaction time will result in rapid agglomeration of nanoparticles leading to increase in the size of nanoparticle. Similarly, Kotov [60] stated that prolonged reaction time may result in progressive decomposition of the stabilizing agent molecules that leads to the growth of nanocrystals.…”

Section: Effect Of Reaction Timementioning

confidence: 99%

Aqueous Eucalyptus globulus leaf extract-mediated biosynthesis of MgO nanorods

Jeevanandam

Chan

2018

Appl Biol Chem

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Plant-based biosynthesis is gaining attention in nanoparticle synthesis as an alternate to chemical and physical synthesis routes due to their non-toxic and environment friendly nature. Leaf extract-based biosynthesis further facilitates rapid synthesis of non-toxic biocompatible nanoparticle that possesses various applications in biomedical and pharmaceutical industry. Metal oxides, especially MgO nanoparticles, show tremendous applications in medical industry. Moreover, plant-based biosynthesized MgO nanoparticles showed improved biophysical and biochemical properties. In the current study, MgO nanorods (MgONRs) are synthesized using Eucalyptus globulus aqueous leaf extract. The results are highly significant as rod-shaped nanoparticles possess superior cellular penetration ability than other morphologies and can be valuable in medical applications. A preliminary experiment was performed to identify the required reaction time for nanorod formation using dynamic light scattering technique. Later, one-factor-at-a-time approach was followed to identify the effect of each process parameters on average particle size of MgONRs. The optimized parameters were used for the synthesis of smaller-sized MgONRs. Fourier Transform infrared spectroscopy analysis was conducted to identify and analyze the functional groups in the leaf extract and MgONRs. The functional groups from phytochemicals and their transformation from enol to keto-form were found to be responsible for nanoparticle formation. The transmission electron microscope analysis showed that the optimized parameters yield 6-8 nm width of stacked MgONRs. Thus, the present work demonstrated a simple and rapid biosynthesis route for MgO nanorod synthesis which can be beneficial in biosensing and therapeutic application.

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“…The sizes of SPMNPs are around~9 nm as obtained from images of Transmission Electron Microscope. Further information for the synthesis and characterizations of the iron oxide nanoparticles can be obtained in the literature, which is out of scope of this investigation (Karaagac & Kockar, 2012;Ozel, Kockar, & Karaagac, 2015).…”

Section: Superparamagnetic Iron Oxide Nanoparticles (Spmns)mentioning

confidence: 99%

Novel debittering process of green table olives: application ofβ-glucosidase bound onto superparamagnetic nanoparticles

Savaş

Kaya

Karaağaç

et al. 2018

CyTA - Journal of Food

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In this work, the olive β-glucosidase (β-glu) enzyme was immobilized onto superparamagnetic nanoparticles (SPMNs). Moreover, immobilized enzyme was also used for the debittering process for natural edible olives from Edremit, Turkey. Owing to SPMNs, the system can be easily removed by a simple magnet and reused many times for debittering process. The free olive β-glucosidase (E), β-glucosidase bound SPMNs (IE), free commercial β-glucosidase (CE), and commercial β-glucosidase bound SPMNs (ICE) were comparatively studied for oleuropein removal. In 6 h, the treatment of E, IE, and ICE hydrolyzed the 15.8%, 56.4%, and 80.0% of the oleuropein for 1000 g of olives, respectively, and further treatment showed that the IE and ICE reached the 100% after 22 h treatment. The results revealed that the IE and ICE with biocompatible properties of SPMNs have the economical, fast, and reusable properties for the industrial debittering process in the table olive production.Innovador método de desamargado de aceitunas verdes de mesa: aplicación de β-glucosidasa adherida a nanopartículas superparamagnéticas RESUMEN En este estudio se inmovilizó la enzima de aceituna β-glucosidasa (β-glu) en nanopartículas superparamagnéticas (SPMN); la enzima inmovilizada se utilizó en el método de desamargado de aceitunas naturales comestibles procedentes de Edremit, Turquía. Debido a las SPMN, el sistema puede ser fácilmente removido mediante un simple imán, siendo posible utilizarlo nuevamente muchas veces en el método de desamargado. Para comparar sus propiedades de eliminación de oleuropeína, se estudiaron la β-glucosidasa libre de aceituna (E), la β-glucosidasa adherida a SPMNs (IE), la β-glucosidasa libre comercial (CE) y la β-glucosidasa comercial adherida a SPMN (ICE). Después de 6 horas, los tratamientos utilizando E, IE e ICE hidrolizaron 15,8%, 56,4% y 80,0% de la oleuropeína de 1 000 g de aceitunas, respectivamente; tratamientos posteriores con IE e ICE alcanzaron 100% después de 22 horas. Estos resultados comprueban que las IE e ICE con propiedades biocompatibles de SPMN reúnen propiedades económicas y de rapidez que, aunadas a su cualidad de reusables, hace favorable su uso en el método de desamargado industrial aplicado a la producción de aceitunas de mesa. ARTICLE HISTORY

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Growth of Iron Oxide Nanoparticles by Hydrothermal Process: Effect of Reaction Parameters on the Nanoparticle Size

Cited by 94 publications

References 22 publications

Synthesis and Characterization of Bournonite PbCuSbS₃ Nanocrystals

Synthesis and Characterization of Bournonite PbCuSbS₃ Nanocrystals

Aqueous Eucalyptus globulus leaf extract-mediated biosynthesis of MgO nanorods

Novel debittering process of green table olives: application ofβ-glucosidase bound onto superparamagnetic nanoparticles

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Growth of Iron Oxide Nanoparticles by Hydrothermal Process: Effect of Reaction Parameters on the Nanoparticle Size

Cited by 94 publications

References 22 publications

Synthesis and Characterization of Bournonite PbCuSbS3 Nanocrystals

Synthesis and Characterization of Bournonite PbCuSbS3 Nanocrystals

Aqueous Eucalyptus globulus leaf extract-mediated biosynthesis of MgO nanorods

Novel debittering process of green table olives: application ofβ-glucosidase bound onto superparamagnetic nanoparticles

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Synthesis and Characterization of Bournonite PbCuSbS₃ Nanocrystals

Synthesis and Characterization of Bournonite PbCuSbS₃ Nanocrystals