Immobilization of UiO-66-NH 2 into Bacterial Cellulose Aerogels for Efficient Particulate Matter Filtration

Qihang Dai, Ju Liu, Junjie Zheng () and Bo Fu ()
Additional contact information
Qihang Dai: Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
Ju Liu: Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
Junjie Zheng: School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Bo Fu: Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China

Sustainability, 2023, vol. 15, issue 18, 1-11

Abstract: Metal–organic frameworks (MOFs) hold great potential for efficient removal of particulate matter (PM) due to their high porosity and tunable surface groups. In this work, sustainable bacterial cellulose (BC) was employed as a substrate for Zr-based MOF (i.e., UiO-66-NH 2 ) deposition. Specifically, the UiO-66-NH 2 @BC aerogel exhibits a multi-level pore structure with a specific surface area of 103 m 2 /g. Pristine BC aerogels indicated a removal efficiency of 50.6% for PM 2.5 , with a pressure drop of 22.8 Pa. While UiO-66-NH 2 @BC aerogels showed a PM 2.5 removal efficiency of 96.9%. The filtration mechanism can be assigned to the following reasons: (i) the interception/impaction of PM with the fibrous and porous aerogel network; and (ii) the presence of polar amine groups that boost electrostatic interactions between PM and MOFs. Moreover, as-prepared filters can be regenerated in a facile way with good reusability and long-term stability.

Keywords: UiO-66-NH 2; bacterial cellulose; air filter; particulate matter (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/18/13382/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/18/13382/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:18:p:13382-:d:1234507

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().