As(V) adsorption on maghemite nanoparticles

T. Tuutijärvi; J. Lu; M. Sillanpää; G. Chen

doi:10.1016/j.jhazmat.2008.12.069

As(V) adsorption on maghemite nanoparticles

T. Tuutijärvi, J. Lu, M. Sillanpää, G. Chen

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

381 Citations (Scopus)

Abstract

In this study a novel adsorbent, maghemite nanoparticles (γ-Fe₂O₃), is used for As(V) removal. Maghemite nanoparticles are an exceptional adsorbent material due to its magnetic properties and a good adsorption capacity. The aims of the study were to investigate the suitability of maghemite nanoparticles for As(V) adsorption and to compare properties of different maghemites and their As(V) adsorption efficiency. Maghemite nanoparticles were characterized by XRD, XPS, TEM, VSM, BET and Zeta potential analyzers. Size of the particles varied from 3.8 to 18.4 nm. Adsorption experiments were carried out with three different kinds of maghemite nanoparticles: (i) commercially available, (ii) homemade with mechanochemical method and (iii) homemade with sol-gel process. All three different kinds of maghemite nanoparticles were successful in removing As(V) from water, one of them reached as high adsorption capacity as 50 mg/g.

Original language	English
Pages (from-to)	1415-1420
Number of pages	6
Journal	Journal of Hazardous Materials
Volume	166
Issue number	2-3
DOIs	https://doi.org/10.1016/j.jhazmat.2008.12.069
Publication status	Published - 30 Jul 2009
Externally published	Yes

Keywords

Adsorption isotherm
Arsenate
Maghemite
Magnetic nanoparticles

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.jhazmat.2008.12.069

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title = "As(V) adsorption on maghemite nanoparticles",

abstract = "In this study a novel adsorbent, maghemite nanoparticles (γ-Fe2O3), is used for As(V) removal. Maghemite nanoparticles are an exceptional adsorbent material due to its magnetic properties and a good adsorption capacity. The aims of the study were to investigate the suitability of maghemite nanoparticles for As(V) adsorption and to compare properties of different maghemites and their As(V) adsorption efficiency. Maghemite nanoparticles were characterized by XRD, XPS, TEM, VSM, BET and Zeta potential analyzers. Size of the particles varied from 3.8 to 18.4 nm. Adsorption experiments were carried out with three different kinds of maghemite nanoparticles: (i) commercially available, (ii) homemade with mechanochemical method and (iii) homemade with sol-gel process. All three different kinds of maghemite nanoparticles were successful in removing As(V) from water, one of them reached as high adsorption capacity as 50 mg/g.",

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T1 - As(V) adsorption on maghemite nanoparticles

AU - Tuutijärvi, T.

AU - Lu, J.

AU - Sillanpää, M.

AU - Chen, G.

PY - 2009/7/30

Y1 - 2009/7/30

N2 - In this study a novel adsorbent, maghemite nanoparticles (γ-Fe2O3), is used for As(V) removal. Maghemite nanoparticles are an exceptional adsorbent material due to its magnetic properties and a good adsorption capacity. The aims of the study were to investigate the suitability of maghemite nanoparticles for As(V) adsorption and to compare properties of different maghemites and their As(V) adsorption efficiency. Maghemite nanoparticles were characterized by XRD, XPS, TEM, VSM, BET and Zeta potential analyzers. Size of the particles varied from 3.8 to 18.4 nm. Adsorption experiments were carried out with three different kinds of maghemite nanoparticles: (i) commercially available, (ii) homemade with mechanochemical method and (iii) homemade with sol-gel process. All three different kinds of maghemite nanoparticles were successful in removing As(V) from water, one of them reached as high adsorption capacity as 50 mg/g.

AB - In this study a novel adsorbent, maghemite nanoparticles (γ-Fe2O3), is used for As(V) removal. Maghemite nanoparticles are an exceptional adsorbent material due to its magnetic properties and a good adsorption capacity. The aims of the study were to investigate the suitability of maghemite nanoparticles for As(V) adsorption and to compare properties of different maghemites and their As(V) adsorption efficiency. Maghemite nanoparticles were characterized by XRD, XPS, TEM, VSM, BET and Zeta potential analyzers. Size of the particles varied from 3.8 to 18.4 nm. Adsorption experiments were carried out with three different kinds of maghemite nanoparticles: (i) commercially available, (ii) homemade with mechanochemical method and (iii) homemade with sol-gel process. All three different kinds of maghemite nanoparticles were successful in removing As(V) from water, one of them reached as high adsorption capacity as 50 mg/g.

KW - Adsorption isotherm

KW - Arsenate

KW - Maghemite

KW - Magnetic nanoparticles

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IS - 2-3

ER -

As(V) adsorption on maghemite nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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