Enhanced environmental mobility of carbon nanotubes in the presence of humic acid and their removal from aqueous solution

Peng Wang; Qihui Shi; Hongjun Liang; David W. Steuerman; Galen D. Stucky; Arturo A. Keller

doi:10.1002/smll.200800753

Enhanced environmental mobility of carbon nanotubes in the presence of humic acid and their removal from aqueous solution

Peng Wang^*, Qihui Shi, Hongjun Liang, David W. Steuerman, Galen D. Stucky, Arturo A. Keller

^*Corresponding author for this work

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

105 Scopus citations

Abstract

A study was conducted to investigate the environmental behavior of carbon nanotubes (CNT), released in powder form into aqueous media and to develop a method a method for removing humic acid (HA)-stabilized CNT from the aqueous media. Single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs) were considered for the investigation. The SWCNTs were synthesized by the high-pressure decomposition of carbon monoxide (CO), while MWCNTs were produced by chemical vapor deposition (CVD). Dispersions of both CNTs were prepared, using HA at environmentally relevant concentrations. The objective of the study was to investigate conditions that will lead to environmental mobility of HA concentrations for dispersing CNTs. UV/Vis absorption spectroscopy was also used to determine the dispersion of CNTs in aqueous solution in the presence of HA.

Original language	English (US)
Pages (from-to)	2166-2170
Number of pages	5
Journal	Small
Volume	4
Issue number	12
DOIs	https://doi.org/10.1002/smll.200800753
State	Published - Dec 2008
Externally published	Yes

Keywords

Affinity-based enrichment
Carbon nanotubes
Environmental effects
Humic acid

ASJC Scopus subject areas

Biotechnology
Biomaterials
General Chemistry
General Materials Science

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10.1002/smll.200800753

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title = "Enhanced environmental mobility of carbon nanotubes in the presence of humic acid and their removal from aqueous solution",

abstract = "A study was conducted to investigate the environmental behavior of carbon nanotubes (CNT), released in powder form into aqueous media and to develop a method a method for removing humic acid (HA)-stabilized CNT from the aqueous media. Single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs) were considered for the investigation. The SWCNTs were synthesized by the high-pressure decomposition of carbon monoxide (CO), while MWCNTs were produced by chemical vapor deposition (CVD). Dispersions of both CNTs were prepared, using HA at environmentally relevant concentrations. The objective of the study was to investigate conditions that will lead to environmental mobility of HA concentrations for dispersing CNTs. UV/Vis absorption spectroscopy was also used to determine the dispersion of CNTs in aqueous solution in the presence of HA.",

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AU - Wang, Peng

AU - Shi, Qihui

AU - Liang, Hongjun

AU - Steuerman, David W.

AU - Stucky, Galen D.

AU - Keller, Arturo A.

PY - 2008/12

Y1 - 2008/12

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AB - A study was conducted to investigate the environmental behavior of carbon nanotubes (CNT), released in powder form into aqueous media and to develop a method a method for removing humic acid (HA)-stabilized CNT from the aqueous media. Single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs) were considered for the investigation. The SWCNTs were synthesized by the high-pressure decomposition of carbon monoxide (CO), while MWCNTs were produced by chemical vapor deposition (CVD). Dispersions of both CNTs were prepared, using HA at environmentally relevant concentrations. The objective of the study was to investigate conditions that will lead to environmental mobility of HA concentrations for dispersing CNTs. UV/Vis absorption spectroscopy was also used to determine the dispersion of CNTs in aqueous solution in the presence of HA.

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Enhanced environmental mobility of carbon nanotubes in the presence of humic acid and their removal from aqueous solution

Abstract

Keywords

ASJC Scopus subject areas

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