University Of Tehran Press Pollution 2383-451X 9 4 2023 10 01 Feasibility of Production of PET/ZIF-8 Polymer Media to Remove Particles from the Air Stream Compared to HEPA Filter 1754 1765 93041 10.22059/poll.2023.359744.1920 EN Meghdad Kazemi Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Saba Kalantary Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Ali Reza Abbasi School of Chemistry, College of Science, University of Tehran, Tehran, Iran Abbas Rahimi Foroushani Department of Statistics and Epidemiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Farideh Golbabaei Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Journal Article 2023 05 23 Polyethylene terephthalate (PET) and Zeolitic Imidazolate Framework-8 (ZIF-8) were used to investigate the feasibility of producing electrospun PET/ZIF-8 polymer media in removing particles from the air stream to compare with the HEPA filter. To make PET/ZIF-8 media, concentrations of 0.5, 1, 2.5, and 5 wt.% of ZIF-8 were dissolved in PET20% solutions, and dispersed for 10 min. Then, PET/ZIF-8 media was produced with an ESDP30 model electrospinning device. The efficiency and pressure drop of nanofiber media were measured with a respiratory mask and filter test device. The FTIR, XRD and SEM analysis were carried out to obtain the characteristics of nanofibers. The overall XRD pattern and its peaks were in reasonable agreement with previous findings that confirmed the structure of ZIF-8. The FTIR spectra of the obtained materials confirm that the chemical bond structure corresponds to that reported for ZIF-8. In total, The PET/ZIF-8(1%) media efficiency, pressure drop, the average diameter of nanofibers, and the quality factor were 100%, 320 Pa, 171.18±37.91 nm and 0.0143 Pa-1, respectively, which was better than other electrospun PET/ZIF-8 media and HEPA filters. According to the results, with an increase in the weight percentage of Zif-8 (>5 wt.%) in the structure of PET/Zif-8 media, due to the increase in the viscosity of the solution jet, the diameter of the produced nanofibers increased and the efficiency of the electrospinning medium decreased. https://jpoll.ut.ac.ir/article_93041_2ca4b2e8f5a031611838657d26accfe0.pdf