Mechanism study on adsorption of acidified multiwalled carbon nanotubes to Pb(II).

Mechanism study on adsorption of acidified multiwalled carbon nanotubes to Pb(II). Research Abstract Details 

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Mechanism study on adsorption of acidified multiwalled carbon nanotubes to Pb(II). Abstract Text:

Hongjuan Wang,Ailin Zhou,Feng Peng,Hao Yu,Jian Yang,Hongjuan Wang,Ailin Zhou,Feng Peng,Hao Yu,Jian Yang,Hongjuan Wang,Ailin Zhou,Feng Peng,Hao Yu,Jian Yang,

Adsorption of acidified multiwalled carbon nanotubes (MWCNTs) to heavy metal using Pb(II) as a model was investigated and characterized by many techniques. The main adsorption mechanism of acidified MWCNTs to Pb(II) is proposed on the basis of adequate analysis. The results show that the oxygenous functional groups can be formed on MWCNTs after MWCNTs were treated by concentrated nitric acid. The oxygenous functional groups play an important role in Pb(II) adsorption to form chemical complex adsorption, which accounts for 75.3% of all the Pb(II) adsorption capacity. The Pb(II) in the form of PbO, Pb(OH)(2), and PbCO(3) adsorbed on the surface of the acidified MWCNTs is only 3.4% of the total Pb(II) adsorption capacity. The Pb(II) species adsorbed on acidified MWCNTs mainly aggregate on the ends and at the defects sites on the acidified MWCNTs.

Mechanism study on adsorption of acidified multiwalled carbon nanotubes to Pb(II). Publishing Authors By Initials

H Wang,A Zhou,F Peng,H Yu,J Yang,H Wang,A Zhou,F Peng,H Yu,J Yang,H Wang,A Zhou,F Peng,H Yu,J Yang,

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Mechanism study on adsorption of acidified multiwalled carbon nanotubes to Pb(II). Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of colloid and interface science

VOLUME: 316

Page Numbers: 277-83

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ISSN: 0021-9797

DAY: 14

MONTH: 09

YEAR: 2007

Mechanism study on adsorption of acidified multiwalled carbon nanotubes to Pb(II). Information

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LANGUAGE: eng

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Grant and Affiliation Information for Mechanism study on adsorption of acidified multiwalled carbon nanotubes to Pb(II).

AFFILIATION: School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China.

Country: United States

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MEDLINETA: J Colloid Interface Sci

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