Removal of arsenic from water by iron oxide nanoparticles impregnated on carbon nanotubes

Bassam S. Tawabini; Salman F. Al-Khaldi; Mazen M. Khaled; Muataz A. Atieh

doi:10.1080/10934529.2011.535389

Removal of arsenic from water by iron oxide nanoparticles impregnated on carbon nanotubes

Bassam S. Tawabini, Salman F. Al-Khaldi, Mazen M. Khaled, Muataz A. Atieh

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

76 Scopus citations

Abstract

The removal of Arsenic (As (III)) ions from water using modified multi-walled carbon nanotubes (MCNTs) was demonstrated in this study. Results of the study showed that raw (non-modified) MCNTs have very poor efficiency in removing As (III) from water by conventional adsorption mechanisms. However, when MCNTs were modified with iron oxide (Fe-MCNTs), a significant improvement in the As (III) removal efficiency was observed. Results of the study also showed that Fe-MCNTs have much higher efficiency in removing As (III) than MCNTs modified with carboxyl group (COOH-MCNTs). Under the experimental conditions used in the study, about 77.5% of As (III) removal was achieved by the Fe-MCNTs, while COOH-MCNTs removed only 11% at pH 5. In addition, the adsorption kinetics of MCNTs indicated that there is a strong affinity of As (III) ions to the surface of the Fe-MCNTs.

Original language	English
Pages (from-to)	215-223
Number of pages	9
Journal	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume	46
Issue number	3
DOIs	https://doi.org/10.1080/10934529.2011.535389
State	Published - Feb 2011

Bibliographical note

Funding Information:
The author(s) would like to acknowledge the support provided by King Abdulaziz City for Science and Technology (KACST) through Science & Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project No: 08-NAN91-4 as part of the National Science, Technology and Innovation Plan.

Keywords

Modified CNTs
arsenic
heavy metals
non-modified carbon nanotubes (CNTs)
water treatment

ASJC Scopus subject areas

Environmental Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/10934529.2011.535389

Cite this

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title = "Removal of arsenic from water by iron oxide nanoparticles impregnated on carbon nanotubes",

abstract = "The removal of Arsenic (As (III)) ions from water using modified multi-walled carbon nanotubes (MCNTs) was demonstrated in this study. Results of the study showed that raw (non-modified) MCNTs have very poor efficiency in removing As (III) from water by conventional adsorption mechanisms. However, when MCNTs were modified with iron oxide (Fe-MCNTs), a significant improvement in the As (III) removal efficiency was observed. Results of the study also showed that Fe-MCNTs have much higher efficiency in removing As (III) than MCNTs modified with carboxyl group (COOH-MCNTs). Under the experimental conditions used in the study, about 77.5\% of As (III) removal was achieved by the Fe-MCNTs, while COOH-MCNTs removed only 11\% at pH 5. In addition, the adsorption kinetics of MCNTs indicated that there is a strong affinity of As (III) ions to the surface of the Fe-MCNTs.",

keywords = "Modified CNTs, arsenic, heavy metals, non-modified carbon nanotubes (CNTs), water treatment",

author = "Tawabini, \{Bassam S.\} and Al-Khaldi, \{Salman F.\} and Khaled, \{Mazen M.\} and Atieh, \{Muataz A.\}",

note = "Funding Information: The author(s) would like to acknowledge the support provided by King Abdulaziz City for Science and Technology (KACST) through Science \& Technology Unit at King Fahd University of Petroleum \& Minerals (KFUPM) for funding this work through project No: 08-NAN91-4 as part of the National Science, Technology and Innovation Plan.",

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Removal of arsenic from water by iron oxide nanoparticles impregnated on carbon nanotubes. / Tawabini, Bassam S.; Al-Khaldi, Salman F.; Khaled, Mazen M. et al.
In: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, Vol. 46, No. 3, 02.2011, p. 215-223.

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

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AU - Tawabini, Bassam S.

AU - Al-Khaldi, Salman F.

AU - Khaled, Mazen M.

AU - Atieh, Muataz A.

N1 - Funding Information: The author(s) would like to acknowledge the support provided by King Abdulaziz City for Science and Technology (KACST) through Science & Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project No: 08-NAN91-4 as part of the National Science, Technology and Innovation Plan.

PY - 2011/2

Y1 - 2011/2

N2 - The removal of Arsenic (As (III)) ions from water using modified multi-walled carbon nanotubes (MCNTs) was demonstrated in this study. Results of the study showed that raw (non-modified) MCNTs have very poor efficiency in removing As (III) from water by conventional adsorption mechanisms. However, when MCNTs were modified with iron oxide (Fe-MCNTs), a significant improvement in the As (III) removal efficiency was observed. Results of the study also showed that Fe-MCNTs have much higher efficiency in removing As (III) than MCNTs modified with carboxyl group (COOH-MCNTs). Under the experimental conditions used in the study, about 77.5% of As (III) removal was achieved by the Fe-MCNTs, while COOH-MCNTs removed only 11% at pH 5. In addition, the adsorption kinetics of MCNTs indicated that there is a strong affinity of As (III) ions to the surface of the Fe-MCNTs.

AB - The removal of Arsenic (As (III)) ions from water using modified multi-walled carbon nanotubes (MCNTs) was demonstrated in this study. Results of the study showed that raw (non-modified) MCNTs have very poor efficiency in removing As (III) from water by conventional adsorption mechanisms. However, when MCNTs were modified with iron oxide (Fe-MCNTs), a significant improvement in the As (III) removal efficiency was observed. Results of the study also showed that Fe-MCNTs have much higher efficiency in removing As (III) than MCNTs modified with carboxyl group (COOH-MCNTs). Under the experimental conditions used in the study, about 77.5% of As (III) removal was achieved by the Fe-MCNTs, while COOH-MCNTs removed only 11% at pH 5. In addition, the adsorption kinetics of MCNTs indicated that there is a strong affinity of As (III) ions to the surface of the Fe-MCNTs.

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Removal of arsenic from water by iron oxide nanoparticles impregnated on carbon nanotubes

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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