Synthesis and Characterization of Zero-Valent Iron Nanoparticles

Yusmartini, Eka Sri; Setiabudidaya, Dedi; Ridwan,; Marsi,; Faizal,

doi:10.4028/www.scientific.net/AMR.1112.62

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HomeAdvanced Materials ResearchAdvanced Materials Research and ProductionSynthesis and Characterization of Zero-Valent Iron...

Synthesis and Characterization of Zero-Valent Iron Nanoparticles

Abstract:

Nanoparticles, particles of size 10 ^-9 have a high potential as water, waste water and air pollution treatment. In this research, nanoscale iron particles were synthesized by reduction of Fe₂SO₄7 H₂O by NaBH₄ at low temperature to avoid oxidation during the process. Characterization of the particles based on particle size, material structure, surface morphology and the composition of forming element was done by transmission electron microscopy (TEM), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectometry (EDS), respectively. Surface area and magnetic character was measured by BET surface area and vibrating sample magnetometry (VSM), respectively. Morfological observation showed that structured core-shell of size < 44 nm and shell of size ~ 3 nm with saturated magnetization value ~ 132 emu g‾¹ has been formed.

Info:

Periodical:

Advanced Materials Research (Volume 1112)

Main Theme:

Advanced Materials Research and Production

Edited by:

Ferry Iskandar, Satria Zulkarnaen Bisri, Prof. Mikrajuddin Abdullah, Prof. Khairurrijal and Prof. Kikuo Okuyama

Pages:

62-65

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1112.62

Citation:

E. S. Yusmartini et al., "Synthesis and Characterization of Zero-Valent Iron Nanoparticles", Advanced Materials Research, Vol. 1112, pp. 62-65, 2015

Online since:

July 2015

Authors:

Eka Sri Yusmartini *, Dedi Setiabudidaya, Ridwan, Marsi, Faizal

Keywords:

Nanoparticle, SEM-EDS, TEM, XRD, Zero-Valent Iron

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References

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Paper TitlePages

Synthesis of Metal Oxide Hollow Nanoparticles by Chemical Vapor Condensation Process

Authors: C.W. Lee, S.G. Kim, Jai Sung Lee

Abstract: The influence of reaction temperature on phase evolution of iron oxide hollow nanoparticles during chemical vapor condensation (CVC) process using iron acetylacetonate was investigated. X-ray diffraction (XRD) analyses revealed that three iron oxide phases (α-Fe2O3, γ-Fe2O3, and Fe3O4) and a mixture of β-Fe2O3 and small amount of γ-Fe2O3 were synthesized at 700oC and 900oC, respectively. TEM observation disclosed that the iron oxide particles are almost composed of hollow structured nanoparticles of 10~20 nm in size and 3~5 nm in shell thickness. This result implies that reaction temperature determining various reaction parameters plays an important role for the phase- and structural evolutions of iron oxide hollow nanoparticles. Especially, the present investigation attempted to explain temperature dependence of the phase evolution of β-Fe2O3 hollow nanoparticles in association with the decomposition of iron acetylacetonate.

219

Consideration of Fe Nanoparticles and Nanowires Synthesized by Chemical Vapor Condensation Process

Authors: Jong Keun Ha, Kwon Koo Cho, Ki Won Kim, Tae Hyun Nam, Hyo Jun Ahn, Gyu Bong Cho

Abstract: Various physical, chemical and mechanical methods, such as inert gas condensation, chemical vapor condensation, sol-gel, pulsed wire evaporation, evaporation technique, and mechanical alloying have been used to synthesize nanoparticles. Among them, chemical vapor condensation(CVC) represents the benefit for its applicability to almost materials because a wide range of precursors are available for large-scale production with a non-agglomerated state. In this work, iron nanoparticles and nanowires have synthesized by chemical vapor condensation(CVC) process, using iron pentacarbonyl(Fe(CO)5) as precursor. The effects of processing parameters on the morphology, microstructure and size of iron nanoparticles and nanowires were studied. Iron nanoparticles and nanowires having various diameters were obtained by controlling the inflow of metallic organic precursor. Both nanoparticles and nanowires were crystallized. Characterization of obtained nanoparticles and nanowires were investigated by using a field emission scanning electron microscopy, transmission microscopy and X-ray diffraction.

Preparation of Zero-Valent Iron Nanoparticles and Study of Dispersion

Authors: Qing Wei Ding, Tian Wei Qian, Hong Fang Liu, Xue Wang

Abstract: Zero-valent iron (ZVI) nanoparticles are prepared by wet chemical method, unlike conventional methods, we applied a water-soluble dextrin、CMC and starch in the preparation. The starch serves as a stabilizer and dispersant that prevents the resultant nanoparticles from agglomeration, and characterized by XRD、SEM and USP. Compare the dispersion of particles and particle size in progress of reducing. According to the characterization results, the nanoparticles can be dispersed more efficiently, maintained the activity of it owned and kept the stability longer with the dispersing agent. Based on the results obtained, the starch as a dispersion agent on the preparation of Zero-valent iron (ZVI) nanoparticles is an ideal approach.

1748

Preparation, Characterization and their Performance of the Supported Nanoscale Zero-Valent Iron Materials with Different Iron Contents

Authors: Zhi Hua Pang, Xiao Shan Jia, Kai Liu, Zhen Xing Wang, Qi Jing Luo, Jun Luo

Abstract: Taking the organic modified montmorillonite as a carrier and dispersant, the supported nanoscale zero-valent iron materials with different iron contents were synthesized through the ferrous sulfate (FeSO4) and the sodium borohydride (NaBH4) in it. The structure and morphology of the materials were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM). Finally, the performances of the supported nanoscale zero-valent iron were studied by high-performance liquid chromatography to determine the adsorption and degradation of 4-chlorophenol. The results indicate that the supported nanoscale zero-valent iron was well dispersed,different iron dosages imposed a visible effect on the morphology and particle diameter of iron;the degradation of 4-chlorophenol resulted from adsorption and degradation processes. Materials with different iron contents exhibited significantly different performance levels in terms of 4-chlorophenol adsorption and degradation.

155

Synthesis and Aqueous Dispersion of Monodisperse Magnetic Fe₃O₄ Nanoparticles

Authors: Wan Ju Zhang, Fang Wang

Abstract: Iron oxide (Fe3O4) nanoparticles as one of the most important nanomaterials are suitable for many applications. Monodisperse magnetic Fe3O4 nanoparticles were synthesized by the thermal decomposition of the iron oleate precursor in octadecene (ODE). The iron oleate complex was prepared by reaction between sodium oleic and FeCl3·6H2O at low temperature. The Fe3O4 nanoparticles were transferred from organic solvent into water by amphiphilic copolymer. The aqueous dispersion of Fe3O4 nanoparticles was stable in water and physiological buffers. This method with low cost can be used to prepare large scale of aqueous dispersion of Fe3O4 nanoparticles.

335