Growth of CoFe2O4 particles on wood template using controlled hydrothermal method at low temperature

Gan, Wentao; Liu, Ying; Gao, Likun; Zhan, Xianxu; Li, Jian

doi:10.1016/j.ceramint.2015.08.014

Cited by 9 publications

(4 citation statements)

References 33 publications

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“…Then, as shown in Fig. 3a, the peaks at 2921 cm −1 , 2852 cm −1 and 1740 cm −1 were ascribed to the stretching vibrations of -CH 3 , -CH 2 and C=O, respectively30. These peaks in the FMW spectra (Fig.…”

Section: Resultsmentioning

confidence: 78%

A simple, one-step hydrothermal approach to durable and robust superparamagnetic, superhydrophobic and electromagnetic wave-absorbing wood

Wang

Yao

Wang

et al. 2016

Sci Rep

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In this work, lamellar MnFe2O4 was successfully planted on a wood surface through the association of hydrogen bonds via the one-pot hydrothermal method. Simultaneously, the fluoroalkylsilane (FAS-17) on the surface of the MnFe2O4 layer formed long-chain or network macromolecules through a poly-condensation process and provided a lower surface energy on the wood surface. The MnFe2O4/wood composite (FMW) presented superior superparamagnetism, superhydrophobicity and electromagnetic wave absorption performance. The results indicated a saturation magnetization of the FMW with excellent superparamagnetism of 28.24 emu·g−1. The minimum value of reflection loss of the FMW reached −8.29 dB at 16.39 GHz with a thickness of 3 mm. Even after mechanical impact and exposure to corrosive liquids, the FMW still maintained a superior superhydrophobicity performance.

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Section: Resultsmentioning

confidence: 78%

A simple, one-step hydrothermal approach to durable and robust superparamagnetic, superhydrophobic and electromagnetic wave-absorbing wood

Wang

Yao

Wang

et al. 2016

Sci Rep

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“…), have been developed through various methods, and their ability to inhibit electromagnetic waves has been evaluated [10c,16] . Furthermore, several studies have investigated the shielding properties of composites that contain these particles when applied to materials such as textiles and wood [5c,10b] . Overall, these findings demonstrate the potential of spinel ferrite nanoparticles for enhancing the properties of materials and inhibiting electromagnetic waves in various applications.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Electromagnetic Shielding Efficacy of Magnetic Metal Oxide Nanoparticles and their Application in Electromagnetic Shielding Paints

Demirci,

Okuyucu,

Hoda

et al. 2024

ChemistrySelect

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People are continuously exposed to electromagnetic waves emitted by mobile phones, base stations, computers, household electrical appliances, and nearby devices. Shielding against electromagnetic radiation is of great importance to avoid potential adverse effects on human health. This study addresses the development of electromagnetic shielding paints containing magnetic metal oxide nanoparticles. Magnetic metal oxide nanoparticles with a spinel ferrite structure, namely Fe3O4, CoFe2O4, and SnFe2O4, were synthesized using the co‐precipitation method. Their structural, morphological, and magnetic properties were characterized through FTIR, XRD, TEM, and VSM measurements. Electromagnetic shielding efficacy was assessed within the 3.5–12.5 GHz frequency range using waveguide measurements. Notably, pure magnetic metal oxide nanoparticles exhibited limited shielding efficiency, but incorporating conductive materials like multi‐walled carbon nanotubes improved the efficacy. Optimization studies, involved adjusting the nanoparticle‐to‐carbon nanotube ratios and coating thickness, demonstrated the best shielding to be with 50 : 10 [MFe2O4:PEG]:mwcnt ratio (M : Fe, Co, Sn) and 0.720 mm thickness, achieving up to 99 % of radiation shielding. The subsequent incorporation of the optimized magnetic composites into a water‐based wall paint at a 1 : 2 weight ratio demonstrated their effectiveness in shielding, successfully blocking 84 % of incoming radiation.

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“…Transition metal salts are interesting alternatives and give a bright color after coordination with ligands such as water. − The color could be tuned by changing the concentration or the metal ion species. Wood contains functional groups like hydroxyl, phenolic, and carboxyl, which may bind metal ions, although the mechanism is not fully understood. − So far, the most putative mechanisms suggested are ion exchange, coordination, complexation, adsorption, etc . When a bleached wood (BW) substrate is immersed in a colored water-metal ion solution, the wood is transformed into brightly colored wood (CW).…”

Section: Introductionmentioning

confidence: 99%

Coloration and Fire Retardancy of Transparent Wood Composites by Metal Ions

Samanta,

Maddalena

et al. 2023

ACS Appl. Mater. Interfaces

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Growth of CoFe2O4 particles on wood template using controlled hydrothermal method at low temperature

Cited by 9 publications

References 33 publications

A simple, one-step hydrothermal approach to durable and robust superparamagnetic, superhydrophobic and electromagnetic wave-absorbing wood

A simple, one-step hydrothermal approach to durable and robust superparamagnetic, superhydrophobic and electromagnetic wave-absorbing wood

Assessment of Electromagnetic Shielding Efficacy of Magnetic Metal Oxide Nanoparticles and their Application in Electromagnetic Shielding Paints

Coloration and Fire Retardancy of Transparent Wood Composites by Metal Ions

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