Emission of carbon nanofiber (CNF) from CNF-containing composite adsorbents

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Version: Author's accepted manuscript
Serval ID
serval:BIB_EA8F8BA6C8AD
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Emission of carbon nanofiber (CNF) from CNF-containing composite adsorbents
Journal
Journal of Occupational and Environmental Hygiene
Author(s)
Jahangiri Mehdi, Shahtaheri Seyyed Jamaleddin, Adl Javad, Rashidi Alimorad, Clark Katherine, Sauvain Jean-Jacques, Riediker Michael
ISSN
1545-9624
Publication state
Published
Issued date
2012
Peer-reviewed
Oui
Volume
9
Number
7
Pages
D130-D135
Language
english
Abstract
In spite of numerous applications of carbon nanofibers (CNFs) in a variety of fields, the potential release of airborne CNF during their special application, which could lead to workers or end-users exposure, has not been well investigated. In this study, the potential release of CNF from an organic vapour respirator cartridge was evaluated by carbon analysis and microscopy analysis. The cartridge consisted of an AC (Activated Carbon)/CNF composite adsorbent and different types of particulate filters. The composite adsorbent CNF were prepared by chemical vapour deposition (CVD).
Air was passed through the prepared cartridge for 12 hours at 12 l/min and particles were collected on sampling filters suitable for measuring organic and elemental carbon (OC/EC) by carbon analysis based on the NIOSH 5040 method. Breakthrough of CNFs was also checked by scanning and transmission electron microscopy (SEM/TEM).
This study found only minimal amounts of released elemental carbon while passing the air through the cartridge. Meanwhile TEM photos showed a few CNF structures for AC/CNF composite adsorbents which were not in the critical range in terms of length, aspect ratio, or number. [Authors]
Keywords
Nanofibers, Carbon, Respiratory Protective Devices, Occupational Exposure/prevention & control,
Pubmed
Web of science
Open Access
Yes
Create date
07/06/2012 15:55
Last modification date
20/08/2019 16:12
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