Fabrication of ultrafiltration membrane with antibacterial properties by blending Ag/UiO-66-NH2 and bamboo cellulose

Cellulose is a widely available organic substance that forms membranes with excellent hydrophilicity and biocompatibility. However, it is prone to biological contamination because its surface is conducive towards the accumulation of biologically active substances, which has hindered its application...

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Bibliographic Details
Published in:Bioresources 2024-11, Vol.19 (4), p.8988-9006
Main Authors: Weng, Rengui, Dong, Shuo, Tian, Feng, Liao, Dongqi, Qin, Jie, Bai, Junjiang, Chen, Guohong, Li, Shaojie, Zhao, Shikang
Format: Article
Language:English
Subjects:
adsorption property
antibacterial property
Bamboo
Bioaccumulation
Biocompatibility
Biological activity
Biological contamination
Bovine serum albumin
Cellulose
cellulose membrane
Composite materials
Costs
E coli
Fabrication
Fluctuations
Graphene
Heavy metals
Hydrophilicity
Lead
membrane separation
Membranes
Metal ions
Nanoparticles
Permeability
Proteins
Reagents
Retention
Serum albumin
Silver
Ultrafiltration
Water circulation
Water column
Water purification
Water treatment
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Summary:Cellulose is a widely available organic substance that forms membranes with excellent hydrophilicity and biocompatibility. However, it is prone to biological contamination because its surface is conducive towards the accumulation of biologically active substances, which has hindered its application potential. In this work, an antimicrobial cellulose-based membrane (Ag/UiO-66-NH2@BCM) with high water flux, high retention rate, and good hydrophilicity was prepared. At an optimal blend ratio of 1 wt% Ag/UiO-66-NH2, the membrane exhibited significant improvements, including a 31% increase in pure water flux, a Bovine Serum Albumin retention rate of 99.6%, and a water flux recovery of 97.4%. Crucially, the membrane demonstrated potent antibacterial, showcasing its broad-spectrum antimicrobial properties. Investigations into the ability of Ag/UiO-66-NH2@BCM to remove Pb2+, Cd2+, and Cr6+ ions from a water column revealed that the maximum adsorption capacity of the monolayer was 405, 390, and 328 mg/g, respectively. The composite membrane demonstrated broad-spectrum and highly effective antimicrobial properties, along with efficient removal of heavy metal ions. The proposed method can be utilized to prepare other composite membranes for water treatment and other fields of membrane separation technology.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.19.4.8988-9006