Effect of ozonolysis on the pore structure, surface chemistry, and bundling of single-walled carbon nanotubes

Hemraj‐Benny, Tirandai; Bandosz, Teresa J.; Wong, Stanislaus S.

doi:10.1016/j.jcis.2007.09.064

Cited by 78 publications

(35 citation statements)

References 29 publications

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“…SWCNT has a high specific surface area (up to 1000 m 2 /g) [35,36], fibrous morphology, and a fairly hydrophobic surface compared to other nanoparticles. SWCNT might therefore specifically interact with lipophilic cell membrane.…”

Section: Discussionmentioning

confidence: 99%

Toxicological effects of inorganic nanoparticles on human lung cancer A549 cells

Choi

Choy

2009

Journal of Inorganic Biochemistry

235

134

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Section: Discussionmentioning

confidence: 99%

Toxicological effects of inorganic nanoparticles on human lung cancer A549 cells

Choi

Choy

2009

Journal of Inorganic Biochemistry

235

134

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“…Their surface areas are low relative to most CNTs, as expected based on the inverse relationship between diameter and SSA. Typical values for SWCNTs range from ~150 to 600 m 2 g −1 (Eswaramoorthy et al, 1999;Fujiwara et al, 2001;Cinke et al, 2002;Martinez et al, 2003;Kayiran et al, 2004;Li et al, 2004;Chakraborty et al, 2006;Hemraj-Benny et al, 2008) and from ~15 to 300 m 2 g −1 for MWCNTs (Tsang et al, 1993;Yin et al, 1999;Raymundo-Pinero et al, 2002;Zhu et al, 2003;Li et al, 2004;Chen and Wang, 2006;Zacharia et al, 2007;Naseh et al, 2009). Figure 1 shows TEM images of size-classified particles collected by Sioutas impactors located in the thermal treatment area.…”

Section: Specific Surface Areamentioning

confidence: 99%

Exposure and Emissions Monitoring during Carbon Nanofiber Production—Part I: Elemental Carbon and Iron–Soot Aerosols

2011

The Annals of Occupational Hygiene

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Production of carbon nanofibers and nanotubes (CNFs/CNTs) and their composite products is increasing globally. High volume production may increase the exposure risks for workers who handle these materials. Though health effects data for CNFs/CNTs are limited, some studies raise serious health concerns. Given the uncertainty about their potential hazards, there is an immediate need for toxicity data and field studies to assess exposure to CNFs/CNTs. An extensive study was conducted at a facility that manufactures and processes CNFs. Filter, sorbent, cascade impactor, bulk, and microscopy samples, combined with direct-reading instruments, provided complementary information on air contaminants. Samples were analyzed for organic carbon (OC) and elemental carbon (EC), metals, and polycyclic aromatic hydrocarbons (PAHs), with EC as a measure of CNFs. Transmission electron microscopy with energy-dispersive X-ray spectroscopy also was applied. Fine/ultrafine iron-rich soot, PAHs, and carbon monoxide were production byproducts. Direct-reading instrument results were reported previously [Evans DE et al. Respirable EC area concentrations inside the facility were about 6-68 times higher than outdoors, while personal breathing zone samples were up to 170 times higher.

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“…During the past two decades, enormous efforts have been focused on carbon nanotubes due to their unique molecular geometry, and the excellent electronic, thermal, and mechanical properties [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Decoration of multiwalled carbon nanotubes with CoO and NiO nanoparticles and studies of their magnetism properties

Wang

Zhang

Zhu

et al. 2009

Journal of Colloid and Interface Science

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Effect of ozonolysis on the pore structure, surface chemistry, and bundling of single-walled carbon nanotubes

Cited by 78 publications

References 29 publications

Toxicological effects of inorganic nanoparticles on human lung cancer A549 cells

Toxicological effects of inorganic nanoparticles on human lung cancer A549 cells

Exposure and Emissions Monitoring during Carbon Nanofiber Production—Part I: Elemental Carbon and Iron–Soot Aerosols

Decoration of multiwalled carbon nanotubes with CoO and NiO nanoparticles and studies of their magnetism properties

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