PMID- 34637264 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211027 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 13 IP - 42 DP - 2021 Oct 27 TI - Bifunctional ZIF-8 Grown Webs for Advanced Filtration of Particulate and Gaseous Matters: Effect of Charging Process on the Electrostatic Capture of Nanoparticles and Sulfur Dioxide. PG - 50401-50410 LID - 10.1021/acsami.1c15734 [doi] AB - Metal-organic framework (MOF), an emerging class of porous hybrid inorganic-organic crystals, has been applied for various environmental remediation strategies including liquid and air filtration. In this study, the role of the zeolite imidazole framework-8 (ZIF-8) was explored on the charge trapping ability and its contribution to capturing the targeted pollutants of NaCl nanoparticles and SO(2) gas. Poly(lactic acid) fibers with controlled surface pores were electrospun using water vapor-induced phase separation, and the fiber surface was uniformly coated with ZIF-8 crystals via an in situ growth method. As a novel process approach, the corona charging process was applied to the ZIF-8 grown webs. The ZIF-8 promoted the charge trapping in the corona process, and the charged ZIF-8 web showed a significantly improved electrostatic filtration efficiency. Also, the charged ZIF-8 web showed an enhanced SO(2) capture ability, both in the static and dynamic air flow states, demonstrating the applicability as a bifunctional filter for both particulate and gaseous matters. The approach of this study is novel in that both particulate and gas capture capabilities were associated with the charge trapping ability of ZIF-8, implementing the corona charging process to the ZIF-8 webs. FAU - Lee, Jinwook AU - Lee J AUID- ORCID: 0000-0003-2719-7547 AD - Department of Textiles, Merchandising and Fashion Design, Seoul National University, Seoul 08826, Republic of Korea. FAU - Jung, Seojin AU - Jung S AUID- ORCID: 0000-0001-6756-6445 AD - Department of Textiles, Merchandising and Fashion Design, Seoul National University, Seoul 08826, Republic of Korea. FAU - Park, Hanjou AU - Park H AUID- ORCID: 0000-0002-7838-7415 AD - Department of Textiles, Merchandising and Fashion Design, Seoul National University, Seoul 08826, Republic of Korea. FAU - Kim, Jooyoun AU - Kim J AUID- ORCID: 0000-0001-5043-9378 AD - Department of Textiles, Merchandising and Fashion Design, Seoul National University, Seoul 08826, Republic of Korea. AD - Research Institute of Human Ecology, Seoul National University, Seoul 08826, Republic of Korea. LA - eng PT - Journal Article DEP - 20211012 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 SB - IM OTO - NOTNLM OT - ZIF-8 OT - charging OT - filtration OT - gas adsorption OT - particulate OT - sulfur dioxide EDAT- 2021/10/13 06:00 MHDA- 2021/10/13 06:01 CRDT- 2021/10/12 17:11 PHST- 2021/10/13 06:00 [pubmed] PHST- 2021/10/13 06:01 [medline] PHST- 2021/10/12 17:11 [entrez] AID - 10.1021/acsami.1c15734 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2021 Oct 27;13(42):50401-50410. doi: 10.1021/acsami.1c15734. Epub 2021 Oct 12.