Design of Multilayer Cellulose-Based Filters Combined with Zeolitic Imidazole Framework and Silica Nanoparticles for Particulate Matter Filtration and Antibacterial Properties
4
Issued Date
2025-01-01
Resource Type
eISSN
21680485
Scopus ID
2-s2.0-105004592595
Journal Title
ACS Sustainable Chemistry and Engineering
Rights Holder(s)
SCOPUS
Bibliographic Citation
ACS Sustainable Chemistry and Engineering (2025)
Suggested Citation
Sawatdee S., Botalo A., Pongchaikul P., Posoknistakul P., Phadungbut P., Intra P., Charnnok B., Chanlek N., Photongkam P., Laosiripojana N., Krisbiantoro P.A., Wu K.C.W., Sakdaronnarong C. Design of Multilayer Cellulose-Based Filters Combined with Zeolitic Imidazole Framework and Silica Nanoparticles for Particulate Matter Filtration and Antibacterial Properties. ACS Sustainable Chemistry and Engineering (2025). doi:10.1021/acssuschemeng.5c00329 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/110174
Title
Design of Multilayer Cellulose-Based Filters Combined with Zeolitic Imidazole Framework and Silica Nanoparticles for Particulate Matter Filtration and Antibacterial Properties
Author's Affiliation
Rajamangala University of Technology Lanna
Chung Yuan Christian University
Faculty of Medicine Ramathibodi Hospital, Mahidol University
Yuan Ze University
Mahidol University
King Mongkut's University of Technology Thonburi
Prince of Songkla University
National Taiwan University
Synchrotron Light Research Institute (Public Organization)
Chung Yuan Christian University
Faculty of Medicine Ramathibodi Hospital, Mahidol University
Yuan Ze University
Mahidol University
King Mongkut's University of Technology Thonburi
Prince of Songkla University
National Taiwan University
Synchrotron Light Research Institute (Public Organization)
Corresponding Author(s)
Other Contributor(s)
Abstract
Owing to growing concerns of air pollution and environmental issues, cellulose-based air filters have recently been introduced as an alternative to fossil fuel-based polymers in air purification systems. However, producing high-purity cellulose with optimal properties suitable for air filter fabrication remains the main challenge for this application. Herein, we optimized the production method of cellulose from pulp biomass via acid hydrolysis in combination with mechanical treatment with a high-speed homogenizer (HS) or ultrasonication (US). After that, the various synthesis conditions of zeolitic imidazolate frameworks-8 (ZIF-8) were performed. For the filter fabrication, ZIF-8 and NS/CDs@MSN were then introduced into a nanocellulose matrix, and subsequent TBA-induced freeze-drying was applied to create antibacterial multilayer cellulose-based filters. The results revealed that highly pure cellulose, size, and morphology of nanocellulose were optimized under 6 h of acid hydrolysis with 1.5 h of HS. The deposition of ZIF-8 and NS/CDs@MSN into the nanocellulose matrix was found to increase the porosity of the cellulose-based filter and provide a stable network structure. For the particle filtration efficiency (PFE) test with 0.5, 1.0, and 1.5 μm particle sizes, the filter showed an excellent PFE of 86.44% for 1.5 μm particles with a quality factor of almost 0.01 Pa-1. Moreover, the material exhibited sufficient antibacterial activity against airborne bacterial growth, especially Staphylococcus aureus. It is proposed that the reactive oxygen species generated by NS/CDs@MSN and Zn2+ from ZIF-8 play an important role in inactivating bacteria. Overall, this work demonstrates the idea of a multifunctional air filter with excellent performance in both air purification and bacterial control, paving the way toward sustainable air filtration.