Po-Jung Huang1, Wen-Hsi Cheng This email address is being protected from spambots. You need JavaScript enabled to view it.2, Chia-Yu Chang2

1 Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
2 Department of Occupational Safety and Hygiene, Fooyin University, Kaohsiung 83102, Taiwan


Received: June 30, 2021
Revised: August 25, 2021
Accepted: August 28, 2021

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.4209/aaqr.210157  


Cite this article:

Huang, P.J., Cheng, W.H., Chang, C.Y. (2021). Sulfonation of Divinylbenzene Adsorbents Packed in a Micro Sampler to Extract Airborne Organic Compounds. Aerosol Air Qual. Res. 21, 210157. https://doi.org/10.4209/aaqr.210157


HIGHLIGHTS

  • Divinylbenzene adsorbents were sulfonated for extracting airborne VOCs.
  • Sulfonated divinylbenzene were packed in a needle to fabricate a micro sampler.
  • Methanol of high polarity can be adsorbed by the micro sampler.
  • The novel sampling device is an alternative to the active adsorbent tube.
 

ABSTRACT


In this work, sulfonated divinylbenzene (SDVB) adsorbents, with the 60–80 mesh diameter, were packed inside a 22-gauge stainless steel needle to fabricate a sulfonated needle trap sampler (SNTS), which is a micro sampler. An analysis of Fourier-transform infrared spectroscopy (FTIR) scanning data, thermal gravimetric analysis (TGA) data, and scanning electron microscopice (SEM) observations, confirmed the physiochemical characteristics of sulfonated DVB adsorbent resins. A gas mixture of approximately 20 ppm of ethanol, methyl ethyl ketone (MEK), benzene, toluene, ethylbenzene and o-xylene (BTEX) was prepared to evaluate the sampling efficacies of the SNTS. The results reveal that, in 1–2 h, SNTS adsorbed increased 92–116% more methanol and 12–20% more MEK than NTS. The SNTS adsorbed 4–15% less BTEX than the NTS. The tested SNTS exhibited remarkable adsorption capacities of methanol, which emitted in a metal frame manufacturing plant. The SNTS is recommended as an alternative passive sampler to the active adsorbent tubes.


Keywords: Sulfonation, Divinylbenzene, Adsorption, Micro sampler, Solid phase, Microextraction



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