Phenanthrene Adsorption from Solution on Single Wall Carbon Nanotubes

Gotovac, Suzana; Hattori, Yoshiyuki; Noguchi, Daisuke; Miyamoto, Junichi; Kanamaru, Mamiko; Utsumi, Shigenori; Kanoh, Hirofumi; Kaneko, Katsumi

doi:10.1021/jp0611830

Cited by 117 publications

(72 citation statements)

References 24 publications

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“…In general it is difficult or even impossible to differentiate between these states or processes, and they may be described as sorption processes (not distinguishing between ad-or absorption). CNTs have been used for the sorption of a variety of organic compounds from water such as dioxins (Long and Yang 2001), polyaromatic hydrocarbons (PAH) (Gotovac et al 2006), polybrominated diphenyl ether (PBDEs) ) chlorobenzenes and chlorophenols (Cai et al 2005;Peng et al 2003) and pesticides thiamethoxam (Zhou et al 2006). Oxidized and hydroxylated CNTs have also been used for the sorption of metals such as copper , nickel (Chen and Wang 2006), cadmium (Liang et al 2004), lead (Li et al 2002), silver , zinc (Lu and Chiu 2006), americium(III) ) and rare earth metals (Liang et al 2005).…”

Section: Interaction With Pollutantsmentioning

confidence: 99%

Nanoparticles: structure, properties, preparation and behaviour in environmental media

et al. 2008

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There is increasing interest and need to develop a deeper understanding of the nature, fate and behaviour of nanoparticles in the environment. This is driven by the increased use of engineered nanoparticles and the increased pressure to commercialise this growing technology. In this review we discuss the key properties of nanoparticles and their preparation and then discuss how these factors can play a role in determining their fate and behaviour in the natural environment. Key focus of the discussion will relate to the surface chemistry of the nanoparticle, which may interact with a range of molecules naturally present in surface waters and sediments. Understanding these factors is a core goal required for understanding the final fate of nanomaterials and predicting which organisms are likely to be exposed to these materials.

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Section: Interaction With Pollutantsmentioning

confidence: 99%

Nanoparticles: structure, properties, preparation and behaviour in environmental media

et al. 2008

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“…The main interactions responsible for the adsorptions of organic compounds by CNTs are: hydrophobic effect, π-electron donor−acceptor (π-EDA) bonds and hydrogen bonds [18][19][20]. Multilayer adsorption may also occur when doi: 10.7243/2050-1323-3-2 organic chemicals are adsorbed on the surface of CNTs [21]. In addition, it has been shown that CNTs display faster desorption for a wide range of nonpolar compounds [22,23].…”

Section: Introductionmentioning

confidence: 99%

Growth and functionalization of carbon nanotubes on quartz filter for environmental applications

Amade

Hussain²,

Romero‐Ocaña³

et al. 2014

J Environ Eng Ecol Sci

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Background: Air pollution has become an important issue worldwide due to its adverse health effects. Among the different air contaminants, volatile organic compounds (VOCs) are liquids or solids with a high vapor pressure at room temperature that are extremely dangerous for human health. Removal of these compounds can be achieved using nanomaterials with tailored properties such as carbon nanotubes. Methods: Vertically-aligned multiwall carbon nanotubes (CNTs) were successfully grown on quartz filters by means of plasma enhanced chemical vapor deposition (PECVD). Furthermore, a plasma treatment was performed in order to modify the surface properties of the CNTs. The adsorption/desorption processes of three chlorinated compounds (trichloroethylene, 1,2-dichlorobenzene and chloroform) on the CNTs were studied using mass spectrometry measurements with a residual gas analyzer. Results: The adsorption capability of the CNTs increased after functionalization of their surface with a water plasma treatment. In addition, it was found that the presence of aromatic rings, water solubility and polarity of the VOCs play an important role on the adsorption/desorption kinetics at the CNTs surface. Conclusions: This study demonstrates the applicability of CNTs deposited on quartz filters for the removal or selective detection of volatile organic compounds (VOCs). The presence of aromatic rings in VOCs results in π-stacking interactions with a significant increase of their adsorption. On the other hand, it was found that CNTs surface interactions increase with water solubility and polarity of the VOC.

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“…Cyclohexane cannot form π-π interactions and Molecules are assumed to be adsorbed such that the molecular axis is parallel to the nanotube axis (Gotovac et al, 2007a) (a) (b) hydrogen bonds with CNPs because it has no functional groups. It is widely recognized that the effect of molecular functional groups on adsorption of organic contaminants by CNTs is by π-π electrondonor-acceptor (EDA) interaction (Gotovac et al, 2006;Chen et al, 2007). The strength of EDA interaction is greatly dependent on the functional groups attached to the benzene rings of organic contaminants.…”

Section: Molecular Functional Groupsmentioning

confidence: 99%

“…Among these interactions, hydrophobic interaction has been used to interpret the sorption of hydrophobic organic contaminants (HOCs) by CNPs, because the surfaces of CNPs are hydrophobic (Gotovac et al, 2006;2007c;Yang et al, 2006). Electrostatic interaction may be the dominant interaction for the adsorption of charged organic contaminants on CNPs (MacKay and Vasudevan, 2012), such as the adsorption of fluoroquinolone antibiotics (OFL and NOR) on CNTs, as affected by pH (Wang et al, 2009;Peng et al, 2012b).…”

Section: Mechanisms Of Interaction Between Contaminants and Carbon Namentioning

confidence: 99%

Organic contaminants and carbon nanoparticles: sorption mechanisms and impact parameters

Peng

Zhang

et al. 2014

J. Zhejiang Univ. Sci. A

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Carbon nanoparticles (CNPs) are novel manufactured materials with unique properties and have potential for a variety of applications. Adsorption of organic contaminants by discharged CNPs may affect the fate and transport of organic contaminants in the environment. This review summarizes the present research progress regarding organic contaminant adsorption on CNPs, and provides important information for the evaluation of the environmental behavior of organic contaminants and the risks associated with the use of CNPs. The main adsorption mechanisms involve hydrophobic interactions, π-π interactions, hydrogen bonds, and electrostatic interactions. These interactions may exist simultaneously, while the controlling adsorption mechanism differs depending on the properties of both the organic contaminants and the CNPs along with environmental conditions. The status of CNPs in the environment greatly affects or even controls their characteristics for adsorption of organic contaminants. The mobility and transport of dispersed CNPs and CNP-adsorbed organic contaminants could be promoted in natural aqueous environments, potentially increasing the spread of various organic contaminants and their associated environmental risks. Investigating the adsorption mechanisms and impact parameters is vital in predicting the environmental behaviors of both organic contaminants and CNPs and their associated risks.

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Phenanthrene Adsorption from Solution on Single Wall Carbon Nanotubes

Cited by 117 publications

References 24 publications

Nanoparticles: structure, properties, preparation and behaviour in environmental media

Nanoparticles: structure, properties, preparation and behaviour in environmental media

Growth and functionalization of carbon nanotubes on quartz filter for environmental applications

Organic contaminants and carbon nanoparticles: sorption mechanisms and impact parameters

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