Distribution behavior of superparamagnetic carbon nanotubes in an aqueous system

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Distribution behavior of superparamagnetic carbon nanotubes in an aqueous system

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Title: Distribution behavior of superparamagnetic carbon nanotubes in an aqueous system
Author: Bai, Xue; Liu, Yuqi; Yu, Lu; Hua, Zulin

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Citation: Bai, Xue, Yuqi Liu, Lu Yu, and Zulin Hua. 2016. “Distribution behavior of superparamagnetic carbon nanotubes in an aqueous system.” Scientific Reports 6 (1): 32845. doi:10.1038/srep32845. http://dx.doi.org/10.1038/srep32845.
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Abstract: This study investigates the distribution behavior of superparamagnetic multiwalled carbon nanotubes (SPM-MWCNTs) in an aqueous system containing Lake Tai sediment. Specifically, the effects of dissolved organic matter (DOM) and sediment on SPM-MWCNTs under various conditions and the interaction forms between them were evaluated through a modified mathematical model and characterization. The results showed that DOM can stabilize SPM-MWCNTs by providing sterically and electrostatically stable surfaces, even under high sodium concentrations. The fitting accuracy of the Freundlich adsorption isotherm is higher than that of the Langmuir adsorption isotherm. Therefore, the adsorption of SPM-MWCNT on the sediment should proceed through a multiple, complex and heterogeneous adsorption mechanism. Characterization analyses indicated that DOM may serve as a bridge for the inorganic adsorption between SPM-MWCNTs and sediment. This study is the first to investigate the distribution behavior of magnetite coated carbon nanotubes (CNTs), which simplified the separation and quantification considerably. The findings of this study will serve as a valuable reference for future studies of magnetic CNTs.
Published Version: doi:10.1038/srep32845
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5013395/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:29407855
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