Quantitative analysis of adsorption and desorption of volatile organic compounds on reusable zeolite filters using gas chromatography

PLoS One. 2020 Jan 8;15(1):e0227430. doi: 10.1371/journal.pone.0227430. eCollection 2020.

Abstract

In this study, we propose a method to quantitatively analyze the concentration of VOCs adsorbed on zeolite filters via gas chromatography (GC). The sampled VOCs from the filters with ethanol as a solution were characterized using GC to determine the concentration of the adsorbed VOCs by comparing the areas of GC peaks of the detected VOCs and ethanol. The proposed method also enabled determination of the desorption (regeneration) conditions of the zeolite filters according to heating temperature and time for various VOCs. Repeated adsorption and desorption of VOCs on zeolite filters and GC analyses allow us to evaluate the durability and reusability of the filter and could help predict the lifetime of zeolite filters in practice.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Chromatography, Gas
  • Filtration*
  • Volatile Organic Compounds* / analysis
  • Volatile Organic Compounds* / chemistry
  • Zeolites*

Substances

  • Volatile Organic Compounds
  • Zeolites

Grants and funding

This work was supported by the Technology Innovation Program (Grant No. 10053374) and the Industrial Strategic Technology Development Program (Grant No. 20002694) funded by the Ministry of Trade, Industry & Energy (Korea). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.