بررسی حذف بخارات تولوئن با استفاده از جاذب چارچوب آلی-فلزی.
Background and Aim: Toluene (methylbenzene) is a volatile organic compound (VOC) that, when chronically exposed to low concentration, can cause a variety of adverse health effects, including immunological and neurological disorders. In addition, the release of toluene in the atmosphere causes variou...
| Publicado en: | Journal of Safety Promotion & Injury Prevention Vol. 11; no. 2; pp. 116 - 128 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Shahid Beheshti University of Medical Sciences
2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=174960099&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 174960099 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 23452455 GCLK jtl: Journal of Safety Promotion & Injury Prevention issn: 23452455 maglogo: N pubinfo: dt: 2023 vid: 11 iid: 2 pid: 87963 pub: Shahid Beheshti University of Medical Sciences artinfo: ui: 174960099 174960099 174960099 10.22037/iipm.v11i1.43147 174960099 ppf: 116 ppct: 12 formats: fmt: @attributes: type: P tig: atl: بررسی حذف بخارات تولوئن با استفاده از جاذب چارچوب آلی-فلزی. aug: au: پریسا محمد قلی خا سمیه فرهنگ دهقان مهدی حسن زاده داود پناهی affil: گروه مهندسی بهداشت حرفهاي و ایمنی کار، دانشكده بهداشت و ایمنی، دانشگاه علوم پزشكی شهید بهشتی، تهران، ایران. sug: subj: Environmental Exposure Prevention and Control Occupational Exposure Prevention and Control Air Pollution Prevention and Control Toluene Adverse Effects Air Pollutants Adverse Effects Air Filters Human X-Rays Spectrophotometry, Infrared Microscopy, Electron, Scanning Absorption Adsorption Humidity Descriptive Statistics Iran Occupational Safety ab: Background and Aim: Toluene (methylbenzene) is a volatile organic compound (VOC) that, when chronically exposed to low concentration, can cause a variety of adverse health effects, including immunological and neurological disorders. In addition, the release of toluene in the atmosphere causes various environmental problems, including the reduction of stratospheric ozone, the production of photochemical smog, and the increase of the greenhouse effect. The purpose of this research was to remove toluene from the air flow using imidazolate zeolite framework (ZIF-8) in order to be used in air purification processes and to prevent and reduce the risk of exposure to this hazardous pollutant in occupational settings and environments. Methods: Zeolite imidazolate framework (ZIF-8) was synthesized in situ, and its structure was investigated using X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, and BET testing. The absorption performance of toluene by ZIF-8 in the gas phase was studied using a dynamic adsorption system developed according to BS EN ISO 10121-1:2014 and previous studies. Results: The results of the structural tests showed that the synthesis of ZIF-8 was successful. Its specific area has also increased compared to several similar articles. The average toluene adsorption capacity of ZIF-8 at a temperature of 30.5 degrees Celsius, a relative humidity of 33%, and a flow rate of 300 ml/min, with a mass of 10 mg, was equal to 2828.91 mg/g. In addition, the initial removal efficiency is reported to be 88.67%. The breakthrough time for 100% of ZIF-8 was determined to be 21,660 seconds. The recovery rate after 6 cycles of ZIF-8 remained as high as 84.7%. Conclusion: ZIF-8 exhibits a high adsorption capacity for toluene in the gas phase, along with a high initial removal efficiency and breakdown time. Due to its effective ability to adsorb toluene, this MOF can be considered for use in air purification and purification processes. However, further studies are needed to fully evaluate its potential as an industrial adsorbent, taking into account relevant considerations. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: Persian refInfo: holdings: @attributes: islocal: N |
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