The attachment of Fe3O4nanoparticles to graphene oxide by covalent bonding

Fuan He; Jintu Fan; Dong Ma; Liming Zhang; Chi Wah Leung; Helen Laiwa Chan

doi:10.1016/j.carbon.2010.04.052

The attachment of Fe₃O₄nanoparticles to graphene oxide by covalent bonding

Fuan He, Jintu Fan, Dong Ma, Liming Zhang, Chi Wah Leung, Helen Laiwa Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

462 Citations (Scopus)

Abstract

Hybrids of graphene oxide (GO) nanosheets and surface-modified Fe3O4nanoparticles (NPs) were fabricated by a two-step process. First, Fe3O4was modified by tetraethyl orthosilicate and (3-aminopropyl) triethoxysilane to introduce amino groups on its surface. Second, the amino groups of Fe3O4were reacted with the carboxylic groups of GO with the aid of 1-ethyl-3-(3- dimethyaminopropyl)carbodiimide and N-hydroxysuccinnimide to form a GO-Fe3O4hybrid. The attachment of Fe3O4NPs on the GO nanosheet surface was confirmed by transmission electron microscopy and Fourier-transform infrared spectroscopy. The adsorption capacity of GO-Fe3O4for methylene blue and neutral red cationic dyes was as high as 190.14 and 140.79 mg/g, respectively. The GO-Fe3O4hybrids could be reduced to form graphene-Fe3O4hybrids by using NaBH4as reducing agent and be used to prepare magnetic GO films.

Original language	English
Pages (from-to)	3139-3144
Number of pages	6
Journal	Carbon
Volume	48
Issue number	11
DOIs	https://doi.org/10.1016/j.carbon.2010.04.052
Publication status	Published - 1 Jan 2010

ASJC Scopus subject areas

General Chemistry

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10.1016/j.carbon.2010.04.052

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title = "The attachment of Fe3O4nanoparticles to graphene oxide by covalent bonding",

abstract = "Hybrids of graphene oxide (GO) nanosheets and surface-modified Fe3O4nanoparticles (NPs) were fabricated by a two-step process. First, Fe3O4was modified by tetraethyl orthosilicate and (3-aminopropyl) triethoxysilane to introduce amino groups on its surface. Second, the amino groups of Fe3O4were reacted with the carboxylic groups of GO with the aid of 1-ethyl-3-(3- dimethyaminopropyl)carbodiimide and N-hydroxysuccinnimide to form a GO-Fe3O4hybrid. The attachment of Fe3O4NPs on the GO nanosheet surface was confirmed by transmission electron microscopy and Fourier-transform infrared spectroscopy. The adsorption capacity of GO-Fe3O4for methylene blue and neutral red cationic dyes was as high as 190.14 and 140.79 mg/g, respectively. The GO-Fe3O4hybrids could be reduced to form graphene-Fe3O4hybrids by using NaBH4as reducing agent and be used to prepare magnetic GO films.",

author = "Fuan He and Jintu Fan and Dong Ma and Liming Zhang and Leung, {Chi Wah} and Chan, {Helen Laiwa}",

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T1 - The attachment of Fe3O4nanoparticles to graphene oxide by covalent bonding

AU - He, Fuan

AU - Fan, Jintu

AU - Ma, Dong

AU - Zhang, Liming

AU - Leung, Chi Wah

AU - Chan, Helen Laiwa

PY - 2010/1/1

Y1 - 2010/1/1

N2 - Hybrids of graphene oxide (GO) nanosheets and surface-modified Fe3O4nanoparticles (NPs) were fabricated by a two-step process. First, Fe3O4was modified by tetraethyl orthosilicate and (3-aminopropyl) triethoxysilane to introduce amino groups on its surface. Second, the amino groups of Fe3O4were reacted with the carboxylic groups of GO with the aid of 1-ethyl-3-(3- dimethyaminopropyl)carbodiimide and N-hydroxysuccinnimide to form a GO-Fe3O4hybrid. The attachment of Fe3O4NPs on the GO nanosheet surface was confirmed by transmission electron microscopy and Fourier-transform infrared spectroscopy. The adsorption capacity of GO-Fe3O4for methylene blue and neutral red cationic dyes was as high as 190.14 and 140.79 mg/g, respectively. The GO-Fe3O4hybrids could be reduced to form graphene-Fe3O4hybrids by using NaBH4as reducing agent and be used to prepare magnetic GO films.

AB - Hybrids of graphene oxide (GO) nanosheets and surface-modified Fe3O4nanoparticles (NPs) were fabricated by a two-step process. First, Fe3O4was modified by tetraethyl orthosilicate and (3-aminopropyl) triethoxysilane to introduce amino groups on its surface. Second, the amino groups of Fe3O4were reacted with the carboxylic groups of GO with the aid of 1-ethyl-3-(3- dimethyaminopropyl)carbodiimide and N-hydroxysuccinnimide to form a GO-Fe3O4hybrid. The attachment of Fe3O4NPs on the GO nanosheet surface was confirmed by transmission electron microscopy and Fourier-transform infrared spectroscopy. The adsorption capacity of GO-Fe3O4for methylene blue and neutral red cationic dyes was as high as 190.14 and 140.79 mg/g, respectively. The GO-Fe3O4hybrids could be reduced to form graphene-Fe3O4hybrids by using NaBH4as reducing agent and be used to prepare magnetic GO films.

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DO - 10.1016/j.carbon.2010.04.052

M3 - Journal article

SN - 0008-6223

VL - 48

SP - 3139

EP - 3144

JO - Carbon

JF - Carbon

IS - 11

ER -

The attachment of Fe₃O₄nanoparticles to graphene oxide by covalent bonding

Abstract

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