Journal
CARBOHYDRATE POLYMERS
Volume 250, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.116955
Keywords
Cellulose paper; Metal organic frameworks; Chitosan; In situ synthesis; Particulate matter removal; Photocatalytic disinfection
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Funding
- Opening Project of Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control [KF201810-4]
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences [KF201805]
- Foundation of National Demonstration Center for Experimental Light Chemistry Engineering Education
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Metal-organic frameworks (MOFs) have potential in the removal of air hazards such as particulate matter. Cellulose paper is low-cost, renewable and highly industrialized matrix. A facile strategy was proposed in the present work to efficiently integrate MOFs with cellulose paper, with zeolitic imidazolate framework-8 (ZIF-8) as the model. ZIF-8 was in situ synthesis in chitosan gel and subsequently added to the cellulose pulp to fabricate composite paper. The retention rate of ZIF-8 was 75.73 %, which was significantly superior to conventional filling method (4.15 %) and in situ precipitation method (6.52 %). Moreover, ZIF-8 in the composite paper functioned well in aspects of adsorption, filtration and sterilization. The PM2.5 removal efficiency was 99.68 % with basis weight 60 g.m(-2), while the removal efficiency and pressure drop can be modulated by changing the basis weight of composite paper. This strategy may offer ideas to design MOFs/cellulose-based composite materials for particulate matter removal.
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