Structure and magnetic properties of magnetic iron oxide/zinc oxide core/shell nanocomposites: Effect of ZnO coating

Loan, To Thanh; Huy, Dinh Khac; Chung, Hoang Manh; Thanh, Nguyen Kim; Hoan, Tran Duc; Duong, Nguyen Phuc; Soontaranon, Siriwat; Klysubun, Wantana

doi:10.1016/j.mtcomm.2020.101733

Cited by 10 publications

(9 citation statements)

References 44 publications

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“…The obtained parameters of this phase are consistent with those reported for γ‐Fe 2 O 3 nanoparticles. [ 20 ] The refined result of the as‐synthesized product suggests that the sample contains more Fe 3+ than expected.…”

Section: Resultsmentioning

confidence: 93%

Synthesis and Gas Adsorption Properties of γ ‐Fe₂O₃ Nanoparticles for Mass‐Type Sensing Application

Vinh

Dang

Hang

et al. 2022

Part & Part Syst Charact

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In this study, Fe3O4 nanoparticles are prepared by the co‐precipitation method. γ‐Fe2O3 and α‐Fe2O3 nanoparticles are obtained by calcining Fe3O4 nanoparticles for 6 h at 200 and 600 °C. The physicochemical properties of the prepared nanoparticles are investigated by field‐emission scanning electron microscopy, X‐ray diffraction, Fourier transform infrared spectroscopy, Brunauer–Emmett–Teller, and Barrett–Joyner–Halenda methods. The gas sensors based on a quartz crystal microbalance (QCM) coated with Fe3O4, γ‐Fe2O3, and α‐Fe2O3 nanoparticles are fabricated and analyzed. The as‐fabricated QCM sensors displayed a high capability for detecting SO2 at room temperature. Among the sensors, the γ‐Fe2O3 nanoparticles coated QCM sensor exhibited the best response. Moreover, the sensor shows good repeatability and long‐term stability. The correlation between the phase composition of the iron oxide nanoparticles and SO2 sensing performance is also discussed in detail.

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Section: Resultsmentioning

confidence: 93%

Synthesis and Gas Adsorption Properties of γ ‐Fe₂O₃ Nanoparticles for Mass‐Type Sensing Application

Vinh

Dang

Hang

et al. 2022

Part & Part Syst Charact

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“…59 The M s values reached are on the same order and even higher than those of the M−Z NCs reported by other authors. 17,26 Besides, the difference between the M s values of both NCs may be related to the level of crystallinity of each NC. 23 3.8.…”

Section: ζ-Potentialmentioning

confidence: 99%

“…For example, Goyal et al designed a NC from Fe 3 O 4 NPs (previously prepared) induction and then coprecipitation of ZnO NPs . Similar procedures were followed by different authors, where the obtained NCs were evaluated in terms of their photocatalytic performance, antibacterial, and even adsorption capability. − …”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide/Iron Oxide Nanocomposites for Photodegradation and Adsorption of Pollutants in Water

Pérez Adassus,

Spetter,

Mansilla

et al. 2024

ACS Appl. Nano Mater.

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“…A similar two-step coprecipitation technique was used by Loan et al to create maghemite@ZnO core/shell nanocomposites in the presence of sodium citrate. The study likely focused on the structural characterization of the nanocomposites, including the determination of particle size, phase identification, and crystal structure analysis …”

Section: Introductionmentioning

confidence: 99%

“…The study likely focused on the structural characterization of the nanocomposites, including the determination of particle size, phase identification, and crystal structure analysis. 28 In this study, the objective was to enhance the CO 2 sensitivity of HPTS by incorporating γ-Fe 2 O 3 @ZnO nanoparticles with bioactive glass additives. The addition of bioactive glass (BG) particles to the γ-Fe 2 O 3 @ZnO material has several effects on the structure, leading to improvements in certain properties.…”

Section: ■ Introductionmentioning

confidence: 99%

Effect on Improving CO₂ Sensor Properties: Combination of HPTS and γ-Fe₂O₃@ZnO Bioactive Glass

Oguzlar,

Zeyrek Ongun,

Deliormanlı

2023

ACS Omega

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Hydroxypyrene-1,3,6-trisulfonic acid (HPTS) dye, a fluorescent dye often used as a pH indicator, is embedded within the bioactive glass matrix and undergoes changes in its fluorescent properties when exposed to carbon dioxide (CO 2 ). The aim of the current study is to investigate the use of bioactive glass (BG) particles containing γ-Fe 2 O 3 @ZnO to enhance the CO 2 sensitivity of HPTS. X-ray diffraction, Fourier transform infrared, scanning electron microscopy, and photoluminescence spectroscopies were used to characterize the sol−gel synthesized powders. The sensing slides were prepared in the form of a thin film by immobilizing the fluorescent dye and γ-Fe 2 O 3 @ZnO-based additives into the poly(methyl methacrylate) matrix. The addition of γ-Fe 2 O 3 @ ZnO nanoparticles with bioactive glass additives to the HPTS improves the performance characteristics of the sensor, including the linear response range, relative signal variation, and sensitivity. Meanwhile, the CO 2 sensitivities were measured as 10.

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Structure and magnetic properties of magnetic iron oxide/zinc oxide core/shell nanocomposites: Effect of ZnO coating

Cited by 10 publications

References 44 publications

Synthesis and Gas Adsorption Properties of γ ‐Fe₂O₃ Nanoparticles for Mass‐Type Sensing Application

Synthesis and Gas Adsorption Properties of γ ‐Fe₂O₃ Nanoparticles for Mass‐Type Sensing Application

Zinc Oxide/Iron Oxide Nanocomposites for Photodegradation and Adsorption of Pollutants in Water

Effect on Improving CO₂ Sensor Properties: Combination of HPTS and γ-Fe₂O₃@ZnO Bioactive Glass

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Structure and magnetic properties of magnetic iron oxide/zinc oxide core/shell nanocomposites: Effect of ZnO coating

Cited by 10 publications

References 44 publications

Synthesis and Gas Adsorption Properties of γ ‐Fe2O3 Nanoparticles for Mass‐Type Sensing Application

Synthesis and Gas Adsorption Properties of γ ‐Fe2O3 Nanoparticles for Mass‐Type Sensing Application

Zinc Oxide/Iron Oxide Nanocomposites for Photodegradation and Adsorption of Pollutants in Water

Effect on Improving CO2 Sensor Properties: Combination of HPTS and γ-Fe2O3@ZnO Bioactive Glass

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Product

Resources

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Synthesis and Gas Adsorption Properties of γ ‐Fe₂O₃ Nanoparticles for Mass‐Type Sensing Application

Synthesis and Gas Adsorption Properties of γ ‐Fe₂O₃ Nanoparticles for Mass‐Type Sensing Application

Effect on Improving CO₂ Sensor Properties: Combination of HPTS and γ-Fe₂O₃@ZnO Bioactive Glass