Study of thallium(III) adsorption onto multiwall carbon nanotubes

Saeed ur Rehman; Najeeb Ullah; Ali Reza Kamali; Khurshid Ali; Cemile Yerlikaya; Hanif ur Rehman

doi:10.1016/S1872-5805(12)60024-9

Study of thallium(III) adsorption onto multiwall carbon nanotubes

Saeed ur Rehman, Najeeb Ullah, Ali Reza Kamali^*, Khurshid Ali, Cemile Yerlikaya, Hanif ur Rehman

^*Corresponding author for this work

Department of Chemical Engineering

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

29 Citations (Scopus)

Abstract

Multiwall carbon nanotubes (MWCNTs) oxidized by H₂SO₄, KMnO₄, and HNO₃ were used as sorbents and their sorption abilities for Tl(III) were compared with raw MWCNTs. The Langmuir model was used for the calculation of the amount of Tl(III) sorbed on the surface of MWCNTs. The acidic oxidation treatment of MWCNTs yielded a large number of functional groups, leading to a sharp increase in Tl(III) adsorption. Maximum adsorption of Tl(III) was recorded at a pH value of 7. The maximum amounts of Tl(III) sorbed on raw MWCNTs, H₂SO₄-oxidized, KMnO₄-oxidized and HNO₃-oxidized MWCNTs calculated by the Langmuir model were 3.0, 11.7, 21.6 and 31.5 mg/g, respectively. The MWCNTs oxidized by HNO₃ showed the best sorption performance for Tl(III) ions.

Original language	English
Pages (from-to)	409-415
Number of pages	7
Journal	Xinxing Tan Cailiao/New Carbon Materials
Volume	27
Issue number	6
DOIs	https://doi.org/10.1016/S1872-5805(12)60024-9
Publication status	Published - Dec 2012

Keywords

Adsorption
Multiwalled carbon nanotubes
Oxidation
Thallium

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10.1016/S1872-5805(12)60024-9

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title = "Study of thallium(III) adsorption onto multiwall carbon nanotubes",

abstract = "Multiwall carbon nanotubes (MWCNTs) oxidized by H2SO4, KMnO4, and HNO3 were used as sorbents and their sorption abilities for Tl(III) were compared with raw MWCNTs. The Langmuir model was used for the calculation of the amount of Tl(III) sorbed on the surface of MWCNTs. The acidic oxidation treatment of MWCNTs yielded a large number of functional groups, leading to a sharp increase in Tl(III) adsorption. Maximum adsorption of Tl(III) was recorded at a pH value of 7. The maximum amounts of Tl(III) sorbed on raw MWCNTs, H2SO4-oxidized, KMnO4-oxidized and HNO3-oxidized MWCNTs calculated by the Langmuir model were 3.0, 11.7, 21.6 and 31.5 mg/g, respectively. The MWCNTs oxidized by HNO3 showed the best sorption performance for Tl(III) ions.",

keywords = "Adsorption, Multiwalled carbon nanotubes, Oxidation, Thallium",

author = "{ur Rehman}, Saeed and Najeeb Ullah and Kamali, {Ali Reza} and Khurshid Ali and Cemile Yerlikaya and {ur Rehman}, Hanif",

year = "2012",

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doi = "10.1016/S1872-5805(12)60024-9",

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T1 - Study of thallium(III) adsorption onto multiwall carbon nanotubes

AU - ur Rehman, Saeed

AU - Ullah, Najeeb

AU - Kamali, Ali Reza

AU - Ali, Khurshid

AU - Yerlikaya, Cemile

AU - ur Rehman, Hanif

PY - 2012/12

Y1 - 2012/12

N2 - Multiwall carbon nanotubes (MWCNTs) oxidized by H2SO4, KMnO4, and HNO3 were used as sorbents and their sorption abilities for Tl(III) were compared with raw MWCNTs. The Langmuir model was used for the calculation of the amount of Tl(III) sorbed on the surface of MWCNTs. The acidic oxidation treatment of MWCNTs yielded a large number of functional groups, leading to a sharp increase in Tl(III) adsorption. Maximum adsorption of Tl(III) was recorded at a pH value of 7. The maximum amounts of Tl(III) sorbed on raw MWCNTs, H2SO4-oxidized, KMnO4-oxidized and HNO3-oxidized MWCNTs calculated by the Langmuir model were 3.0, 11.7, 21.6 and 31.5 mg/g, respectively. The MWCNTs oxidized by HNO3 showed the best sorption performance for Tl(III) ions.

AB - Multiwall carbon nanotubes (MWCNTs) oxidized by H2SO4, KMnO4, and HNO3 were used as sorbents and their sorption abilities for Tl(III) were compared with raw MWCNTs. The Langmuir model was used for the calculation of the amount of Tl(III) sorbed on the surface of MWCNTs. The acidic oxidation treatment of MWCNTs yielded a large number of functional groups, leading to a sharp increase in Tl(III) adsorption. Maximum adsorption of Tl(III) was recorded at a pH value of 7. The maximum amounts of Tl(III) sorbed on raw MWCNTs, H2SO4-oxidized, KMnO4-oxidized and HNO3-oxidized MWCNTs calculated by the Langmuir model were 3.0, 11.7, 21.6 and 31.5 mg/g, respectively. The MWCNTs oxidized by HNO3 showed the best sorption performance for Tl(III) ions.

KW - Adsorption

KW - Multiwalled carbon nanotubes

KW - Oxidation

KW - Thallium

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DO - 10.1016/S1872-5805(12)60024-9

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SN - 2097-1605

VL - 27

SP - 409

EP - 415

JO - Xinxing Tan Cailiao/New Carbon Materials

JF - Xinxing Tan Cailiao/New Carbon Materials

IS - 6

ER -

Study of thallium(III) adsorption onto multiwall carbon nanotubes

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Keywords

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