Preparation of Fe3O4/Bentonite Nanocomposite from Natural Iron Sand by Co-precipitation Method for Adsorbents Materials

Sebayang, Perdamean; Kurniawan, Candra; Aryanto, Didik; Setiadi, Eko Arief; Tamba, Konni; Djuhana,; Sudiro, Toto

doi:10.1088/1757-899x/316/1/012053

Cited by 9 publications

(5 citation statements)

References 13 publications

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“…Figure 1 shows a sketch of the ability to transfer electrons Fe2+ and Fe3+ due to oxidation and reduction processes [2] . Magnetite (Fe3O4) nanoparticles are used in several applications, such as nanofluid for heat transfer applications [3][4] , thermal conduktivity, density and adsorbent materials [5][6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

The Effect of Tetraethil OrthoCilicate (TEOS) on Fe3O4 Nanoparticles Addition in Electrical

Dayana,

Satria,

Rianna

2024

Indonesian J Appl Phys

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Magnetite Nanoparticles of pure (Fe3O4) and Fe3O4 with TEOS addition have been successfully synthesized from natural iron sand using the coprecipitation method. The purpose of this study is to provide information on the effect of TEOS to Fe3O4 on the electrical properties. The effect of TEOS addition to Fe3O4 indicates that the increase in true density results is 4.95 gr/cm3. The stability of nanolubricant on Fe3O4 nanoparticles with the addition of TEOS 1.2 ml was dispersed homogeneously. The value of thermal conductivity also increases due to TEOS addition on Fe3O4 nanoparticles in a volume fraction of 0.8% of 1,631 W/m.K and the heat of the type produced was 718.44 J/kg.K. The effect of TEOS addition on Fe3O4 nanoparticles produces good electrical properties of stability in the nano-lubricant.

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Section: Introductionmentioning

confidence: 99%

The Effect of Tetraethil OrthoCilicate (TEOS) on Fe3O4 Nanoparticles Addition in Electrical

Dayana,

Satria,

Rianna

2024

Indonesian J Appl Phys

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“…The chemical co-precipitation method is to prepare magnetic materials by mixing Fe 2+ and Fe 3+ iron salts in an alkaline aqueous medium [18]. The method can obtain Fe 3 O 4 particles with better quality, higher yield and controllable performance according to different chemical environments without the need for special chemicals and complex and harmful procedures [15,[19][20][21]. Therefore, the chemical co-precipitation method is the most suitable, the most widely used and the most promising method to synthesize Fe 3 O 4 particles [22].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Preparation of Fe3O4-L by Chemical Co-Precipitation and Its Adsorption of Heavy Metal Ions

Di¹,

Sun²,

Zhang³

et al. 2023

Journal of Renewable Materials

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To address the serious pollution of heavy metals in AMD, the difficulty and the high cost of treatment, Fe 3 O 4 -L was prepared by the chemical co-precipitation method. Based on the single-factor and RSM, the effects of particle size, total Fe concentration, the molar ratio of Fe 2+ to Fe 3+ and water bath temperature on the removal of AMD by Fe 3 O 4 -L prepared by chemical co-precipitation method were analyzed. Static adsorption experiments were conducted on Cu 2+ , Zn 2+ and Pb 2+ using Fe 3 O 4 -L prepared under optimal conditions as adsorbents. The adsorption properties and mechanisms were analyzed by combining SEM-EDS, XRD and FTIR for characterization. The study showed that the effects of particle size, total Fe concentration and the molar ratio of Fe 2+ to Fe 3+ are larger. Obtained by response surface optimization analysis, the optimum conditions for the preparation of Fe 3 O 4 -L were a particle size of 250 mesh, a total Fe concentration of 0.5 mol/L, and a molar ratio of Fe 2+ to Fe 3+ of 1:2. Under these conditions, the removal rates of Cu 2+ , Zn 2+ , and Pb 2+ were 94.52%, 88.49%, and 96.69% respectively. The adsorption of Cu 2+ , Zn 2+ and Pb 2+ by Fe 3 O 4 -L prepared under optimal conditions reached equilibrium at 180 min, with removal rates of 99.99%, 85.27%, and 97.48%, respectively. The adsorption reaction of Fe 3 O 4 -L for Cu 2+ and Zn 2+ is endothermic, while that for Pb 2+ is exothermic. Fe 3 O 4 -L can still maintain a high adsorption capacity after five cycles of adsorption-desorption experiments. Cu 2+ , Zn 2+ and Pb 2+ mainly exist as CuFe 2 O 4 , Zn(OH) 2 , ZnFe 2 O 4 and PbS after being adsorbed by Fe 3 O 4 -L, which is the result of the combination of physical diffusion, ion exchange and surface complexation reaction.

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“…This transformation will undoubtedly change the physical properties of magnetite as an adsorbent. Therefore, this conversion is essential in applying magnetite as an adsorbent (Sebayang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Morphological characteristics and electrical properties analysis of silica based on river and coastal iron sand

Meiliyadi¹,

Wahyudi²,

Damayanti

et al. 2022

jipfalbiruni

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This study aims to analyze silica's morphological characteristics and electrical properties based on the river and coastal sand. Iron samples were taken from Sompang river sand, East Lombok and Coastal Sand from Gading, Mataram City. The silica was synthesized using the sol-gel method with a sintering temperature variation of 100 to 175 ℃. Morphological characteristics samples analysis was done using SEM-EDX. The electrical properties of iron sand included measuring the dielectric constant using the parallel plate method. Furthermore, the resistivity was measured using the two-point probe method. In the silica-based on river sand sample, the resistivity value was inversely proportional to the sintering temperature. In contrast, the resistivity value of silica based on the coastal sand sample was directly proportional to the sintering temperature. Silica-based on river sand has a resistivity of about 7.1'104 Wm at a sintering temperature of 100℃ and 3.5'104 Wm at a sintering temperature of 175℃. Silica-based on river sand has a resistivity of about 1.8'104 Wm at a sintering temperature of 100℃ and 7.1'104 Wm at 175℃. This research is a preliminary study on the electrical properties of natural sand-based silica to improve understanding of the physical properties of silica to be used in technological applications, such as sensors. Furthermore, the dielectric constant value in the river sand sample was directly proportional to the sintering temperature. However, the dielectric constant in the coastal sand sample was inversely proportional to the sintering temperature. Silica-based on river sand has a dielectric constant of about 1.02'102 at a sintering temperature of 100℃ and 1.18'102 at 175℃. Silica-based on coastal sand has a dielectric constant of about 1.97'102 at a sintering temperature of 100℃ and 1.15'102 at 175℃.

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Preparation of Fe₃O₄/Bentonite Nanocomposite from Natural Iron Sand by Co-precipitation Method for Adsorbents Materials

Cited by 9 publications

References 13 publications

The Effect of Tetraethil OrthoCilicate (TEOS) on Fe3O4 Nanoparticles Addition in Electrical

The Effect of Tetraethil OrthoCilicate (TEOS) on Fe3O4 Nanoparticles Addition in Electrical

Optimization of Preparation of Fe3O4-L by Chemical Co-Precipitation and Its Adsorption of Heavy Metal Ions

Morphological characteristics and electrical properties analysis of silica based on river and coastal iron sand

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