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Thermal Properties of Buckypaper Sorbent Used in Newly Developed Volatile Organic Compound (VOC) Sampler



Details

  • Personal Author:
    Lungu C
  • Description:
    Exposure to Volatile Organic Compounds (VOCs) is one of the most common occupational risks. A new pre-analysis method, photothermal desorption (PTD) have been developed by our group which uses pulses of high-energy light to release analytes from carbonaceous sorbents of diffusive samplers. The method allows faster response and is prone for field work. In the years since PTD was first tested, self-supporting carbon nanotube sorbents (Buckypapers or BPs) have been reliably produced for use as a PTD compatible sampling material. However, further work is needed to fully explore the capabilities of PTD as a method for desorbing VOC samples. The work discussed in this presentation focuses on characterizing the driving thermal phenomena behind PTD. The objectives of the presented work were three-fold: measure the thermal response (i.e. temperature change) of BPs during light irradiation, determine the best method for conducting said measurements, and determine the thermal conductivity (TC) of the material. In fulfilling these objectives, the collected data not only provide a foundation for future studies on the theoretical framework of PTD, but supply end users of the technique with valuable information pertaining to which VOCs are best suited for use with PTD, based on their ability to be successfully desorbed within the generated temperature range. [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • Publisher:
    American Industrial Hygiene Association
  • Document Type:
    Text
  • Funding:
    Grant
  • Genre:
    Abstract or Summary
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    1
  • NIOSHTIC Number:
    nn:20067023
  • Citation:
    AIHce 2021: American Industrial Hygiene Conference and Exposition, May 24-46, 2021, virtual event. Falls Church, VA: American Industrial Hygiene Association, 2021 May; :1
  • CAS Registry Number:
    Carbon nanotubes (CAS RN 308068-56-6)
  • Federal Fiscal Year:
    2021
  • Performing Organization:
    University of Alabama at Birmingham
  • Peer Reviewed:
    False
  • Start Date:
    20050701
  • Source Full Name:
    AIHce 2021: American Industrial Hygiene Conference and Exposition, May 24-46, 2021, virtual event
  • End Date:
    20270630
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:7ef7f5ebd9f80a0d66f2669b711eebcc5d9895abba179063bb700cec556e59eb1757290316ba2700cff7ebd27a4ab9dd0a9a93be59a2550c4b274879164616b1
  • Download URL:
  • File Type:
    Filetype[PDF - 615.04 KB ]
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