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Melamine sponge-based copper-organic framework (Cu-CPP) as a multi-functional filter for air purifiers.
Le, Van Cam Thi; Thanh, Tuu Nguyen; Kang, Eunsil; Yoon, Soyeong; Mai, Hien Duy; Sheraz, Mahshab; Han, Tae Uk; An, Jinjoo; Kim, Seungdo.
Afiliação
  • Le VCT; Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon, 24252 Korea.
  • Thanh TN; Nano-InnoTek Corporation, 123, Digital-ro 26-gil, Guro-gu, Seoul, 08390 Korea.
  • Kang E; Tra Vinh University, 126, Nguyen Thien Thanh Street, Tra Vinh City, Tra Vinh Province, 87000 Vietnam.
  • Yoon S; Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon, 24252 Korea.
  • Mai HD; Research Center for Climate Change and Energy (RCCCE), Hallym University, Chuncheon, 24252 Korea.
  • Sheraz M; Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon, 24252 Korea.
  • Han TU; Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon, 24252 Korea.
  • An J; Nano-InnoTek Corporation, 123, Digital-ro 26-gil, Guro-gu, Seoul, 08390 Korea.
  • Kim S; Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon, 24252 Korea.
Korean J Chem Eng ; 39(4): 954-962, 2022.
Article em En | MEDLINE | ID: mdl-35153359
COVID-19 has drawn great attention on the necessity for establishing pathogen-free indoor air. This paper offers an insight into the potential application of a multi-purpose filter to remove fine particulates and disinfect pathogens using melamine sponge with a copper-organic framework. In-situ growth dip coating method was applied to coat Cu-based coordination polymer particle (Cu-CPP) on melamine sponge (MS). The integration of Cu-CPPs with high crystallinity and highly active surface area (1,318.1 m2/g) enabled Cu-CPP/MS to have an excellent capture rate (99.66%) and an instant disinfection rate of 99.54% for Escherichia coli. Electrostatic attraction seemed to play a crucial role in capturing negative-charged pathogens effectively by positive charges on Cu-CPP arising from unbalanced copper ions in Cu-CPP. Disinfection of pathogens was mainly attributed to catalytically active Cu2+ sites. Organic ligand played an important role in bridging and maintaining Cu2+ ions within the framework. This study highlights the design of a new capture-and-disinfection (CDS) air filter system for pathogens using Cu-CPP/MS. It can be applied as a substitute for conventional high-efficiency particulate air (HEPA) filters. Electronic Supplementary Material: Supplementary material is available for this article at 10.1007/s11814-021-1000-4 and is accessible for authorized users.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article