Choi, Dong Yun Heo, Ki Joon Kang, Juhee An, Eun Jeong Jung, Soo-Ho Lee, Byung Uk Lee, Hye Moon Jung, Jae Hee 2024-01-19T22:32:16Z 2024-01-19T22:32:16Z 2021-09-03 2018-06-05 0304-3894 https://pubs.kist.re.kr/handle/201004/121260 Here, we introduce a reusable bifunctional polyester/aluminum (PET/Al) air filter for the high efficiency simultaneous capture and inactivation of airborne microorganisms. Both bacteria of Escherichia colt and Staphylococcus epidermidis were collected on the PET/Al filter with a high efficiency rate (similar to 99.99%) via the electrostatic interactions between the charged bacteria and fibers without sacrificing pressure drop. The PET/Al filter experienced a pressure drop approximately 10 times lower per thickness compared with a commercial high-efficiency particulate air filter. As the Al nanograins grew on the fibers, the antimicrobial activity against airborne E. coli and S. epidermidis improved to similar to 94.8% and similar to 96.9%, respectively, due to the reinforced hydrophobicity and surface roughness of the filter. Moreover, the capture and antimicrobial performances were stably maintained during a cyclic washing test of the PET/Al filter, indicative of its reusability. The PET/Al filter shows great potential for use in energy-efficient bioaerosol control systems suitable for indoor environments. English ELSEVIER SCIENCE BV ALUMINUM THIN-FILM ESCHERICHIA-COLI NANOPARTICLES FILTRATION PARTICLES BACTERIA SILVER MICROORGANISMS INACTIVATION TECHNOLOGIES Washable antimicrobial polyester/aluminum air filter with a high capture efficiency and low pressure drop Article 10.1016/j.jhazmat.2018.02.043 1 JOURNAL OF HAZARDOUS MATERIALS, v.351, pp.29 - 37 JOURNAL OF HAZARDOUS MATERIALS 351 29 37 scie scopus 000430777500004 2-s2.0-85042725545 Engineering, Environmental Environmental Sciences Engineering Environmental Sciences & Ecology Article ALUMINUM THIN-FILM ESCHERICHIA-COLI NANOPARTICLES FILTRATION PARTICLES BACTERIA SILVER MICROORGANISMS INACTIVATION TECHNOLOGIES Air filter Antimicrobial filter Bioaerosol Conductive fiber Particulate matter