Surface Oxides on Carbon Nanotubes (CNTs): Effects on CNT Stability and Sorption Properties in Aquatic Environments

Fairbrother, Howard; Smith, Billy; Wnuk, Josh; Wepasnick, Kevin A.; Ball, William P.; Cho, Hyunhee; Bangash, F. K.

doi:10.1002/9780470396612.ch7

Cited by 3 publications

(2 citation statements)

References 98 publications

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“…[29,43] Adherence to the SHR has also been observed in sedimentation studies with acid-washed CNTs. [109,110,160] In contrast, MWNTs prepared through high-power ultrasonication deviated from the SHR, yielding a CCC ∝ Z −3.3 relationship. This difference in the exponent on Z may be a reflection of the relatively low EPM exhibited by MWNTs prepared by ultrasonication, because the CCC is predicted to be proportional to Z −2 for particles with low ζ potentials.…”

Section: Influence Of Electrolytesmentioning

confidence: 97%

Assessing the colloidal properties of engineered nanoparticles in water: case studies from fullerene C60 nanoparticles and carbon nanotubes

Chen¹,

Smith²,

Ball³

et al. 2010

Environ. Chem.

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136

114

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Environmental context. The fate and bioavailability of engineered nanoparticles in natural aquatic systems are strongly influenced by their ability to remain dispersed in water. Consequently, understanding the colloidal properties of engineered nanoparticles through rigorous characterisation of physicochemical properties and measurements of particle stability will allow for a more accurate prediction of their environmental, health, and safety effects in aquatic systems.This review highlights some important techniques suitable for the assessment of the colloidal properties of engineered nanoparticles and discusses some recent findings obtained by using these techniques on two popular carbon-based nanoparticles, fullerene C 60 and multi-walled carbon nanotubes.Abstract. The colloidal properties of engineered nanoparticles directly affect their use in a wide variety of applications and also control their environmental fate and mobility. The colloidal stability of engineered nanoparticles depends on their physicochemical properties within the given aqueous medium and is ultimately reflected in the particles' aggregation and deposition behaviour. This review presents some of the key experimental methods that are currently used to probe colloidal properties and quantify engineered nanoparticle stability in water. Case studies from fullerene C 60 nanoparticles and multi-walled carbon nanotubes illustrate how the characterisation and measurement methods are used to understand and predict nanoparticle fate in aquatic systems. Consideration of the comparisons between these two classes of carbonbased nanoparticles provides useful insights into some major current knowledge gaps while also revealing clues about needed future developments. Key issues to be resolved relate to the nature of near-range surface forces and the origins of surface charge, particularly for the reportedly unmodified or 'pure' carbon-based nanoparticles.

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Section: Influence Of Electrolytesmentioning

confidence: 97%

Assessing the colloidal properties of engineered nanoparticles in water: case studies from fullerene C60 nanoparticles and carbon nanotubes

Chen¹,

Smith²,

Ball³

et al. 2010

Environ. Chem.

Self Cite

136

114

View full text Add to dashboard Cite

show abstract

“…Surface chemistry and surface properties are key to determining adsorption, interparticle interactions, and colloidal transport. [75][76][77][78][79][80][81][82][83] Water contact angle measurements provided a quantitative metric to assess the relative surface hydrophilicity/ hydrophobicity of each plastic. 84,85 As demonstrated in Table S2, † there were no significant differences in the measured water contact angle for plastics prepared with and without 1% w/w organometallic additive.…”

Section: Resultsmentioning

confidence: 99%

Nanoplastics prepared with uniformly distributed metal-tags: a novel approach to quantify size distribution and particle number concentration of polydisperse nanoplastics by single particle ICP-MS

Smith,

Brown,

Malone

et al. 2024

Environ. Sci.: Nano

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Engineered Nanomaterials

Peters

Raynor

2021

Patty's Industrial Hygiene

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and Catalysis. He has been working in the environmental protection, multifunctional materials development, and analytical chemistry fields for 15 years and has a background of leading and managing large multidisciplinary, multi-partner research projects. He has been the author/co-author of more than 30 articles indexed in the Web of Science, Scopus, and other databases, 3 book chapters, and more than 60 participations in national and international scientific conferences. He has also filed 4 patents regarding materials development for ecofriendly processes.

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Surface Oxides on Carbon Nanotubes (CNTs): Effects on CNT Stability and Sorption Properties in Aquatic Environments

Cited by 3 publications

References 98 publications

Assessing the colloidal properties of engineered nanoparticles in water: case studies from fullerene C60 nanoparticles and carbon nanotubes

Assessing the colloidal properties of engineered nanoparticles in water: case studies from fullerene C60 nanoparticles and carbon nanotubes

Nanoplastics prepared with uniformly distributed metal-tags: a novel approach to quantify size distribution and particle number concentration of polydisperse nanoplastics by single particle ICP-MS

Engineered Nanomaterials

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