Modification of Fast-Growing Wood into Magnetic Wood with Impregnation Method Using Fe3O4 Nanoparticles

Prihatini, Esti; Wahyuningtyas, Irma; Rahayu, Istie; Ismail, Rohmat

doi:10.23960/jsl.v11i2.651

Cited by 3 publications

(3 citation statements)

References 42 publications

(62 reference statements)

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“…Both impregnation solutions used demineralized water to dissolve the nanomagnetite particles. According to Prihatini et al (2022), the solution containing nano-magnetite and demineralized water separated into solid and liquid phases or did not form a colloidal phase. Therefore, the WPG of sengon wood is relatively low even though there is a slight increase after the concentration increases.…”

Section: Physical Properties Of Magnetic Woodmentioning

confidence: 99%

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The Effect of Synthetic and Commercial Nano-Magnetite on the Electromagnetic Absorbance Behavior of Magnetic Wood

Rahayu,

Sabarna,

Wahyuningtyas

et al. 2024

J. Sylva Lestari

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Magnetic wood with good electromagnetic wave absorption properties was prepared by comparing synthetic and commercial nano-magnetite (Fe3O4-NP) as sengon (Falcataria moluccana) wood impregnation solution. The co-precipitation method produced a synthetic nano-magnetite with NH4OH as a weak base precursor. Meanwhile, the commercial one was purchased from a supplier. Three levels of nano-magnetite concentration (1%, 2.5%, and 5%) were dispersed in deionized water. The impregnation process was done by applying a vacuum of 0.5 bar for 120 minutes, followed by a pressure of 1 bar for 120 minutes. The results showed that the commercial nano-magnetite caused more improvements in weight percent gain, density, and hardness than the synthetic nano-magnetic, although they were insignificantly different. There was also a reduction in brightness with the overall color change being categorized into other colors because the color became darker with increasing nano-magnetite concentration in both woods. The absorbance capacity of the synthetic nano-magnetite-treated wood was larger than the commercial nano-magnetite-treated wood. This synthetic nano-magnetite-treated wood had been optimally treated at a 5% concentration, making it suitable for use as electromagnetic wave shielding material because it can absorb almost 100% electromagnetic waves. Keywords: Fe3O4, impregnation, nano-magnetite, sengon wood, shielding materials

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Section: Physical Properties Of Magnetic Woodmentioning

confidence: 99%

“…Therefore, the modified wood has paramagnetic properties and was classified as a soft magnetic material. There is also an ex-situ impregnation method, which can be done easily and quickly and requires low costs (Prihatini et al 2022).…”

Section: Introductionmentioning

confidence: 99%

The Effect of Synthetic and Commercial Nano-Magnetite on the Electromagnetic Absorbance Behavior of Magnetic Wood

Rahayu,

Sabarna,

Wahyuningtyas

et al. 2024

J. Sylva Lestari

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“…Penggunaan kayu terimpregnasi nanopartikel logam dapat meningkatkan daya tahan kayu dan sifat kayu lainnya. Riset penggunaan nanopartikel logam telah banyak dilakukan diantaranya yaitu penggunaan nanopartikel tembaga (Akhtari & Nicholas, 2013), polistirena dalam bentuk tembaga oksidanya (Jafari & Omidvar, 2018), nanopartikel perak pada kayu tropis (Roque et al, 2014), nanopartikel berbasis seng (Bak & Németh, 2018), dan nanopartikel SiO2, TiO2, dan Fe3O4 (Dirna et al 2020;Rahayu et al 2020;Rahayu et al 2022a;Rahayu et al 2022b;Prihatini et al 2020;Prihatini et al, 2023).…”

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Compatibility Testing of Synthesized TiO2 Nanoparticles on The Fast-Growing Wood Physical Properties

Prihatini,

Ismail,

Sekartining Rahayu

et al. 2024

J. Sains Nat.

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Jabon wood (Anthochepalus cadamba) has inferior quality, so it is necessary to modify the wood to improve the quality of its physical properties, namely by impregnating TiO2 nanoparticles (NP-TiO2). This study aims to determine the right synthesis method for the synthesis of NP-TiO2 so as to improve the quality of the physical properties of jabon wood optimally. The results of FTIR testing showed that jabon wood has successfully impregnated NP-TiO2 by hydrothermal and solvothermal methods with ethanol, acetone, and methanol solvents with the identification of the functional group of Ti-O at wavenumber 533 cm-1 and the Ti-O-Ti functional group at wavenumber 679 cm-1 which is the bond formed in the framework of the TiO2 compound. The results of the physical properties test showed that NP-TiO2 which was successfully impregnated into wood was synthesized using hydrothermal and solvothermal methods, namely acetone, methanol, and ethanol, with a WPG value of 1.36%, 2.6%, 2.16%, and 1.61%, respectively. XRD test results show that jabon wood has successfully impregnated NP-TiO2 by hydrothermal and solvothermal methods using acetone, ethanol, and methanol solvents with the identification of anatase TiO2 crystal lattice and crystal sizes of 16.21, 15.94, 14.27, dan 15.75 nm, respectively.

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Magnetic characteristics of sengon wood-impregnated magnetite nanoparticles synthesized by the co-precipitation method

Fadia,

Rahayu,

Nawawi

et al. 2023

AIMSMATES

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<abstract> <p>This study was conducted to synthesize magnetic wood through the ex situ impregnation method of magnetite nanoparticles and analyze its physical properties and characterization. The process was initiated with the synthesis of magnetite nanoparticles by the co-precipitation method and the nano-magnetite was successfully synthesized with a particle distribution of 17–233 nm at an average size of 75 nm. Furthermore, the impregnation solution consisted of three different levels of magnetite nanoparticles dispersed in furfuryl alcohol, untreated and furfurylated wood for comparison. Sengon wood (<italic>Falcataria moluccana</italic> Miq.) was also used due to its low physical properties. The impregnation process was conducted by immersing the samples in the solution at a vacuum of −0.5 bar for 30 min, followed by a pressure of 1 bar for 2 h. There was also an improvement in the physical properties, such as weight percent gain, bulking effect, anti-swelling efficiency and density, while the water uptake continued to decrease. Additionally, magnetite nanoparticles appeared in wood microstructure image, supported by the result of ferrum content in chemical element analysis. The results showed that chemical change analysis proved the presence of Fe–O functional group cross-linked with wood polymer. The diffractogram also reported the appearance of magnetite nanoparticles peak and a decrease in crystallinity due to an increase in the concentration. Based on the analysis, sengon wood was classified as a superparamagnetic material with soft magnetic characteristics and the optimum treatment was furfurylated-magnetite 12.5% wood.</p> </abstract>

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Modification of Fast-Growing Wood into Magnetic Wood with Impregnation Method Using Fe3O4 Nanoparticles

Cited by 3 publications

References 42 publications

The Effect of Synthetic and Commercial Nano-Magnetite on the Electromagnetic Absorbance Behavior of Magnetic Wood

The Effect of Synthetic and Commercial Nano-Magnetite on the Electromagnetic Absorbance Behavior of Magnetic Wood

Compatibility Testing of Synthesized TiO2 Nanoparticles on The Fast-Growing Wood Physical Properties

Magnetic characteristics of sengon wood-impregnated magnetite nanoparticles synthesized by the co-precipitation method

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