The Interaction Between Natural Colloids and Multi-Walled Carbon Nanotubes and Their Effects on the Adsorption of Polycyclic Aromatic Hydrocarbons (PAHs)

Yang Yang; Worlanyo E. Gato; Henok D. Abshiro; Jay C. Means

The Interaction Between Natural Colloids and Multi-Walled Carbon Nanotubes and Their Effects on the Adsorption of Polycyclic Aromatic Hydrocarbons (PAHs)

Yang Yang, Worlanyo E. Gato, Henok D. Abshiro, Jay C. Means

Biochemistry, Chemistry, & Physics

Southern Illinois University

Research output: Contribution to conference › Presentation

Abstract

Carbon nanotubes (CNTs) have been widely used materials in industry as well as in scientific research. These materials have special structures and functions. As a consequence of their pervasive use, their potential adverse effect on the environment is of concern to environmental scientist. For instance, CNTs may enhance the toxicity of polycyclic aromatic hydrocarbons (PAHs) after release to the environment due to the fact that they are superior sorbents. In environmental water system, natural colloids widely exist. The interaction between natural colloids and CNTs may change the adsorption of PAHs on CNTs. This research investigates adsorption capacity between two different CNTs and PAHs namely, napththalene, phenanthrene and pyrene in water and in the presence of colloids. Adsorption capacity of two multi-walled CNTs was examined in the presence of pure water, 0.5 ppm through 20 ppm of selected PAHs. This is then followed by a study of the interaction between these two CNTs and natural colloids filtered from lake water. In order to get colloids, water is collected from lake. Then prefiltration with 0.45 pore size um membrane and ultrafiltration with 10,000 molecular weight cutoff membrane are employed. The adsorption of PAHs to CNTs equilibrated with colloids will also be determined. All our samples are extract from water phase to organic phase by using Solid Phase Extraction(SPE) and Liquid-Liquid Extraction(LLE) methods, followed by GC-MS as a quantification tool. Adsorption isotherms are then fit over the concentration ranges and PAHs analyzed. Results obtained from this planned study will enable the evaluation of the potential environmental impact of CNTs as sorbent materials. Also the nature of the interaction of the colloids with CNTs will be useful in determining their environmental applications. The present work is ongoing. We hope to generate enough data in a few months.

Original language	American English
State	Published - Mar 11 2012
Event	Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (Pittcon) - Orlando, FL Duration: Mar 11 2012 → …

Conference

Conference	Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (Pittcon)
Period	03/11/12 → …

Keywords

Environmental/Water
Nanotechnology
PAH
Total Organic Carbon

DC Disciplines

Chemistry

Cite this

@conference{1637de23d6214861a610bb176acd945c,

title = "The Interaction Between Natural Colloids and Multi-Walled Carbon Nanotubes and Their Effects on the Adsorption of Polycyclic Aromatic Hydrocarbons (PAHs)",

abstract = " Carbon nanotubes (CNTs) have been widely used materials in industry as well as in scientific research. These materials have special structures and functions. As a consequence of their pervasive use, their potential adverse effect on the environment is of concern to environmental scientist. For instance, CNTs may enhance the toxicity of polycyclic aromatic hydrocarbons (PAHs) after release to the environment due to the fact that they are superior sorbents. In environmental water system, natural colloids widely exist. The interaction between natural colloids and CNTs may change the adsorption of PAHs on CNTs. This research investigates adsorption capacity between two different CNTs and PAHs namely, napththalene, phenanthrene and pyrene in water and in the presence of colloids. Adsorption capacity of two multi-walled CNTs was examined in the presence of pure water, 0.5 ppm through 20 ppm of selected PAHs. This is then followed by a study of the interaction between these two CNTs and natural colloids filtered from lake water. In order to get colloids, water is collected from lake. Then prefiltration with 0.45 pore size um membrane and ultrafiltration with 10,000 molecular weight cutoff membrane are employed. The adsorption of PAHs to CNTs equilibrated with colloids will also be determined. All our samples are extract from water phase to organic phase by using Solid Phase Extraction(SPE) and Liquid-Liquid Extraction(LLE) methods, followed by GC-MS as a quantification tool. Adsorption isotherms are then fit over the concentration ranges and PAHs analyzed. Results obtained from this planned study will enable the evaluation of the potential environmental impact of CNTs as sorbent materials. Also the nature of the interaction of the colloids with CNTs will be useful in determining their environmental applications. The present work is ongoing. We hope to generate enough data in a few months.",

keywords = "Environmental/Water, Nanotechnology, PAH, Total Organic Carbon",

author = "Yang Yang and Gato, {Worlanyo E.} and Abshiro, {Henok D.} and Means, {Jay C.}",

year = "2012",

month = mar,

day = "11",

language = "American English",

note = "Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (Pittcon) ; Conference date: 11-03-2012",

}

TY - CONF

T1 - The Interaction Between Natural Colloids and Multi-Walled Carbon Nanotubes and Their Effects on the Adsorption of Polycyclic Aromatic Hydrocarbons (PAHs)

AU - Yang, Yang

AU - Gato, Worlanyo E.

AU - Abshiro, Henok D.

AU - Means, Jay C.

PY - 2012/3/11

Y1 - 2012/3/11

N2 - Carbon nanotubes (CNTs) have been widely used materials in industry as well as in scientific research. These materials have special structures and functions. As a consequence of their pervasive use, their potential adverse effect on the environment is of concern to environmental scientist. For instance, CNTs may enhance the toxicity of polycyclic aromatic hydrocarbons (PAHs) after release to the environment due to the fact that they are superior sorbents. In environmental water system, natural colloids widely exist. The interaction between natural colloids and CNTs may change the adsorption of PAHs on CNTs. This research investigates adsorption capacity between two different CNTs and PAHs namely, napththalene, phenanthrene and pyrene in water and in the presence of colloids. Adsorption capacity of two multi-walled CNTs was examined in the presence of pure water, 0.5 ppm through 20 ppm of selected PAHs. This is then followed by a study of the interaction between these two CNTs and natural colloids filtered from lake water. In order to get colloids, water is collected from lake. Then prefiltration with 0.45 pore size um membrane and ultrafiltration with 10,000 molecular weight cutoff membrane are employed. The adsorption of PAHs to CNTs equilibrated with colloids will also be determined. All our samples are extract from water phase to organic phase by using Solid Phase Extraction(SPE) and Liquid-Liquid Extraction(LLE) methods, followed by GC-MS as a quantification tool. Adsorption isotherms are then fit over the concentration ranges and PAHs analyzed. Results obtained from this planned study will enable the evaluation of the potential environmental impact of CNTs as sorbent materials. Also the nature of the interaction of the colloids with CNTs will be useful in determining their environmental applications. The present work is ongoing. We hope to generate enough data in a few months.

AB - Carbon nanotubes (CNTs) have been widely used materials in industry as well as in scientific research. These materials have special structures and functions. As a consequence of their pervasive use, their potential adverse effect on the environment is of concern to environmental scientist. For instance, CNTs may enhance the toxicity of polycyclic aromatic hydrocarbons (PAHs) after release to the environment due to the fact that they are superior sorbents. In environmental water system, natural colloids widely exist. The interaction between natural colloids and CNTs may change the adsorption of PAHs on CNTs. This research investigates adsorption capacity between two different CNTs and PAHs namely, napththalene, phenanthrene and pyrene in water and in the presence of colloids. Adsorption capacity of two multi-walled CNTs was examined in the presence of pure water, 0.5 ppm through 20 ppm of selected PAHs. This is then followed by a study of the interaction between these two CNTs and natural colloids filtered from lake water. In order to get colloids, water is collected from lake. Then prefiltration with 0.45 pore size um membrane and ultrafiltration with 10,000 molecular weight cutoff membrane are employed. The adsorption of PAHs to CNTs equilibrated with colloids will also be determined. All our samples are extract from water phase to organic phase by using Solid Phase Extraction(SPE) and Liquid-Liquid Extraction(LLE) methods, followed by GC-MS as a quantification tool. Adsorption isotherms are then fit over the concentration ranges and PAHs analyzed. Results obtained from this planned study will enable the evaluation of the potential environmental impact of CNTs as sorbent materials. Also the nature of the interaction of the colloids with CNTs will be useful in determining their environmental applications. The present work is ongoing. We hope to generate enough data in a few months.

KW - Environmental/Water

KW - Nanotechnology

KW - PAH

KW - Total Organic Carbon

UR - https://cen.acs.org/content/dam/cen/static/pdfs/Article_Assets/90/09009pittcon.pdf

M3 - Presentation

T2 - Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (Pittcon)

Y2 - 11 March 2012

ER -

The Interaction Between Natural Colloids and Multi-Walled Carbon Nanotubes and Their Effects on the Adsorption of Polycyclic Aromatic Hydrocarbons (PAHs)

Abstract

Conference

Keywords

DC Disciplines

Other files and links

Fingerprint

Cite this