Facile synthesis and characterization of Fe/FeS nanoparticles for environmental applications

Eun Ju Kim; Jae Hwan Kim; Abdul Majeed Azad; Yoon Seok Chang

doi:10.1021/am200016v

Facile synthesis and characterization of Fe/FeS nanoparticles for environmental applications

Eun Ju Kim, Jae Hwan Kim, Abdul Majeed Azad, Yoon Seok Chang

Dept. of Civil Engineering

Research output: Contribution to journal › Article › peer-review

415 Scopus citations

Abstract

Multicomponent nanoparticles containing two or more different types of functionalities show unique physical and chemical properties, leading to significantly enhanced performance. In this study, we have developed a new one-pot method to prepare Fe/FeS nanoparticles using dithionite at room temperature. The FeS precipitates on the Fe surface are formed by the interaction between dissolved iron species and hydrogen sulfide, one of the decomposition products of dithionite in solution. The resulting Fe/FeS nanoparticles have high surface area, good electrical conductivity, and strong magnetic responsivity. In addition, the Fe/FeS shows a much higher reactivity toward contaminants than the pure Fe nanoparticles. The above synthesized nanoparticles are successfully applied for the rapid removal of trichloroethylene (TCE) from water. The study reveals that Fe/FeS nanoparticles are a promising candidate for the efficient removal of pollutants.

Original language	English
Pages (from-to)	1457-1462
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	3
Issue number	5
DOIs	https://doi.org/10.1021/am200016v
State	Published - 25 May 2011

Keywords

Dithionite
Iron sulfides
Multicomponent nanoparticles
TCE
Zerovalent iron

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10.1021/am200016v

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title = "Facile synthesis and characterization of Fe/FeS nanoparticles for environmental applications",

abstract = "Multicomponent nanoparticles containing two or more different types of functionalities show unique physical and chemical properties, leading to significantly enhanced performance. In this study, we have developed a new one-pot method to prepare Fe/FeS nanoparticles using dithionite at room temperature. The FeS precipitates on the Fe surface are formed by the interaction between dissolved iron species and hydrogen sulfide, one of the decomposition products of dithionite in solution. The resulting Fe/FeS nanoparticles have high surface area, good electrical conductivity, and strong magnetic responsivity. In addition, the Fe/FeS shows a much higher reactivity toward contaminants than the pure Fe nanoparticles. The above synthesized nanoparticles are successfully applied for the rapid removal of trichloroethylene (TCE) from water. The study reveals that Fe/FeS nanoparticles are a promising candidate for the efficient removal of pollutants.",

keywords = "Dithionite, Iron sulfides, Multicomponent nanoparticles, TCE, Zerovalent iron",

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T1 - Facile synthesis and characterization of Fe/FeS nanoparticles for environmental applications

AU - Kim, Eun Ju

AU - Kim, Jae Hwan

AU - Azad, Abdul Majeed

AU - Chang, Yoon Seok

PY - 2011/5/25

Y1 - 2011/5/25

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AB - Multicomponent nanoparticles containing two or more different types of functionalities show unique physical and chemical properties, leading to significantly enhanced performance. In this study, we have developed a new one-pot method to prepare Fe/FeS nanoparticles using dithionite at room temperature. The FeS precipitates on the Fe surface are formed by the interaction between dissolved iron species and hydrogen sulfide, one of the decomposition products of dithionite in solution. The resulting Fe/FeS nanoparticles have high surface area, good electrical conductivity, and strong magnetic responsivity. In addition, the Fe/FeS shows a much higher reactivity toward contaminants than the pure Fe nanoparticles. The above synthesized nanoparticles are successfully applied for the rapid removal of trichloroethylene (TCE) from water. The study reveals that Fe/FeS nanoparticles are a promising candidate for the efficient removal of pollutants.

KW - Dithionite

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Facile synthesis and characterization of Fe/FeS nanoparticles for environmental applications

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